temp remove test requirement

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 5 to 6.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](https://github.com/codecov/codecov-action/compare/v5...v6)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/integration-test-callable-from-server-repo.yml

@@ -0,0 +1,61 @@
+name: Integration Test
+
+on:
+  workflow_call:
+    inputs:
+      speckle-sharp-sdk-ref:
+        required: true
+        type: string
+
+jobs:
+  integration-test:
+    env:
+      CLIENT_DIR: "./client"
+      CLIENT_REPO: "specklesystems/speckle-sharp-sdk"
+      SERVER_DIR: "./server"
+      SERVER_REPO: "specklesystems/speckle-server-internal"
+      SOLUTION: "Speckle.Sdk.sln"
+      SPECKLE_SERVER_IMAGE: "speckle-server:local"
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout ${{ env.CLIENT_REPO }}
+        uses: actions/checkout@v6
+        with:
+          path: ${{ env.CLIENT_DIR }}
+          repository: ${{ env.CLIENT_REPO }}
+          ref: ${{ inputs.speckle-sharp-sdk-ref }}
+
+      - name: Checkout ${{ env.SERVER_REPO }}
+        uses: actions/checkout@v6
+        with:
+          repository: ${{ env.SERVER_REPO }}
+          path: ${{ env.SERVER_DIR }}
+
+      - name: Setup .NET SDK
+        uses: actions/setup-dotnet@v5
+        with:
+          dotnet-version: 8.x.x
+      #          cache: true
+      #          cache-dependency-path: "**/packages.lock.json"
+
+      - name: 🏗️ Build Server
+        run: docker build --file "./packages/server/Dockerfile" --tag ${{ env.SPECKLE_SERVER_IMAGE }} .
+        working-directory: ${{ env.SERVER_DIR }}
+          
+      - name: ⚙️ Spin up Server
+        run: docker compose --file "../${{ env.CLIENT_DIR }}/docker-compose-internal.yml" up --wait
+        working-directory: ${{ env.SERVER_DIR }}
+        env:
+          SPECKLE_SERVER_IMAGE: ${{ env.SPECKLE_SERVER_IMAGE }}
+
+      - name: 📦 Restore .NET Solution
+        run: dotnet restore ${{ env.SOLUTION }} --locked-mode
+        working-directory: ${{ env.CLIENT_DIR }}
+        
+      - name: 🏗️ Build .NET Solution
+        run: dotnet build ${{ env.SOLUTION }} --configuration Release --no-restore -warnaserror
+        working-directory: ${{ env.CLIENT_DIR }}
+        
+      - name: 🔨 Run .NET Integration Tests 
+        run: dotnet test ${{ env.SOLUTION }} --filter "(Category=Integration)&(Server!=Public)" --configuration Release --no-build --no-restore --verbosity=normal
+        working-directory: ${{ env.CLIENT_DIR }}

.github/workflows/integration-test.yml

@@ -30,14 +30,14 @@ jobs:
 
       - name: 🔐 Login to Github Container Registry
         if: ${{ inputs.use-internal-image }}
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: "ghcr.io"
           username: ${{ github.actor }}
           password: ${{ github.token }}
 
       - name: ⚙️ Spin up Server
-        run: docker compose -f ${{ inputs.docker-compose-file }} up --wait
+        run: docker compose --file ${{ inputs.docker-compose-file }} up --wait
 
       - name: 📦 Restore
         run: dotnet restore ${{ env.Solution }} --locked-mode
@@ -51,10 +51,10 @@ jobs:
 
       - name: 🔨 Integration Tests against Internal Server
         if: ${{ inputs.use-internal-image }}
-        run: dotnet test ${{ env.Solution }} --filter "Category=Integration" --configuration Release --no-build --no-restore --verbosity=normal /p:AltCover=true /p:AltCoverAttributeFilter=ExcludeFromCodeCoverage
+        run: dotnet test ${{ env.Solution }} --filter "(Category=Integration)&(Server!=Public)" --configuration Release --no-build --no-restore --verbosity=normal /p:AltCover=true /p:AltCoverAttributeFilter=ExcludeFromCodeCoverage
 
       - name: Upload coverage reports to Codecov with GitHub Action
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v6
         continue-on-error: true
         with:
           fail_ci_if_error: true

.github/workflows/pr.yml

@@ -1,7 +1,11 @@
 name: PR Test
 
 on:
-  pull_request:
+  pull_request: {}
+  push: 
+    branches:
+      - "main" # Need to run for codecov to compare against the BASE
+
 
 jobs:
   build:
@@ -38,7 +42,7 @@ jobs:
         run: dotnet pack ${{ env.Solution }} --configuration Release --no-build 
 
       - name: Upload coverage reports to Codecov with GitHub Action
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v6
         continue-on-error: true
         with:
           fail_ci_if_error: true

.github/workflows/release.yml

@@ -46,13 +46,6 @@ jobs:
           SEMVER: ${{ steps.set-version.outputs.SEMVER }}
           FILE_VERSION: ${{ steps.set-version.outputs.FILE_VERSION }}
 
-      - name: Upload coverage reports to Codecov with GitHub Action
-        uses: codecov/codecov-action@v5
-        continue-on-error: true
-        with:
-          fail_ci_if_error: true
-          files: tests/**/coverage.xml
-          token: ${{ secrets.CODECOV_TOKEN }}
 
       - name: NuGet login (OIDC → temp API key)
         uses: NuGet/login@v1

Directory.Packages.props

@@ -15,8 +15,8 @@
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
     <PackageVersion Include="Microsoft.Extensions.DependencyInjection" Version="[2.2.0,)" />
     <PackageVersion Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="[2.2.0,)" />
+    <PackageVersion Include="Microsoft.Bcl.AsyncInterfaces" Version="[9.0.4,)" />
     <PackageVersion Include="Microsoft.Extensions.Logging" Version="[2.2.0,)" />
-    <PackageVersion Include="Microsoft.Bcl.AsyncInterfaces" Version="[5.0.0,)" />
     <PackageVersion Include="Moq" Version="4.20.72" />
     <PackageVersion Include="Newtonsoft.Json.Schema" Version="4.0.1" />
     <PackageVersion Include="Open.ChannelExtensions" Version="9.1.0" />

Speckle.Sdk.slnx

@@ -18,6 +18,7 @@
     <File Path=".github\git-commit-instructions.md" />
   </Folder>
   <Folder Name="/config/workflows/">
+    <File Path=".github/workflows/integration-test-callable-from-server-repo.yml" />
     <File Path=".github/workflows/integration-test.yml" />
     <File Path=".github/workflows/pr.yml" />
     <File Path=".github/workflows/release.yml" />

build/Program.cs

@@ -168,7 +168,7 @@ Target(
 
 Target(
   PACK,
-  dependsOn: [TEST],
+  dependsOn: [BUILD],
   async () =>
   {
     {

docker-compose-internal.yml

@@ -52,7 +52,7 @@ services:
       start_period: 10s
 
   speckle-server:
-    image: ghcr.io/specklesystems/speckle-server:latest
+    image: ${SPECKLE_SERVER_IMAGE:-ghcr.io/specklesystems/speckle-server:latest}
     restart: always
     healthcheck:
       test:

src/Speckle.Automate.Sdk/Speckle.Automate.Sdk.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup Label="Compiler Properties">
-    <TargetFrameworks>netstandard2.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net8.0</TargetFrameworks>
   </PropertyGroup>
   <PropertyGroup Label="Nugetspec Package Properties">
     <PackageId>Speckle.Automate.Sdk</PackageId>

src/Speckle.Automate.Sdk/packages.lock.json

@@ -1,366 +1,6 @@
 {
   "version": 2,
   "dependencies": {
-    ".NETStandard,Version=v2.0": {
-      "Microsoft.SourceLink.GitHub": {
-        "type": "Direct",
-        "requested": "[8.0.0, )",
-        "resolved": "8.0.0",
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-        "dependencies": {
-          "Microsoft.Build.Tasks.Git": "8.0.0",
-          "Microsoft.SourceLink.Common": "8.0.0"
-        }
-      },
-      "NETStandard.Library": {
-        "type": "Direct",
-        "requested": "[2.0.3, )",
-        "resolved": "2.0.3",
-        "contentHash": "st47PosZSHrjECdjeIzZQbzivYBJFv6P2nv4cj2ypdI204DO+vZ7l5raGMiX4eXMJ53RfOIg+/s4DHVZ54Nu2A==",
-        "dependencies": {
-          "Microsoft.NETCore.Platforms": "1.1.0"
-        }
-      },
-      "Newtonsoft.Json.Schema": {
-        "type": "Direct",
-        "requested": "[4.0.1, )",
-        "resolved": "4.0.1",
-        "contentHash": "rbHUKp5WTIbqmLEeJ21nTTDGcfR0LA7bVMzm0bYc3yx6NFKiCIHzzvYbwA4Sqgs7+wNldc5nBlkbithWj8IZig==",
-        "dependencies": {
-          "Newtonsoft.Json": "13.0.3"
-        }
-      },
-      "PolySharp": {
-        "type": "Direct",
-        "requested": "[1.15.0, )",
-        "resolved": "1.15.0",
-        "contentHash": "FbU0El+EEjdpuIX4iDbeS7ki1uzpJPx8vbqOzEtqnl1GZeAGJfq+jCbxeJL2y0EPnUNk8dRnnqR2xnYXg9Tf+g=="
-      },
-      "Speckle.InterfaceGenerator": {
-        "type": "Direct",
-        "requested": "[0.9.6, )",
-        "resolved": "0.9.6",
-        "contentHash": "HKH7tYrYYlCK1ct483hgxERAdVdMtl7gUKW9ijWXxA1UsYR4Z+TrRHYmzZ9qmpu1NnTycSrp005NYM78GDKV1w=="
-      },
-      "System.CommandLine": {
-        "type": "Direct",
-        "requested": "[2.0.0-beta4.22272.1, )",
-        "resolved": "2.0.0-beta4.22272.1",
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-        "dependencies": {
-          "System.Memory": "4.5.4"
-        }
-      },
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       "Microsoft.SourceLink.GitHub": {
         "type": "Direct",

src/Speckle.Sdk.Dependencies/ArrayBufferWriterPooledObjectPolicy.cs

@@ -0,0 +1,40 @@
+using System.Buffers;
+using System.Text;
+using Microsoft.Extensions.ObjectPool;
+
+namespace Speckle.Sdk.Dependencies;
+
+public sealed class ArrayBufferWriterPooledObjectPolicy<T> : PooledObjectPolicy<ArrayBufferWriter<T>>
+{
+  /// <summary>
+  /// Gets or sets the initial capacity of pooled <see cref="ArrayBufferWriter{T}"/> instances.
+  /// </summary>
+  /// <value>Defaults to <c>100</c>.</value>
+  public int InitialCapacity { get; set; } = 100;
+
+  /// <summary>
+  /// Gets or sets the maximum value for <see cref="StringBuilder.Capacity"/> that is allowed to be
+  /// retained, when <see cref="Return(ArrayBufferWriter{T})"/> is invoked.
+  /// </summary>
+  /// <value>Defaults to <c>4096</c>.</value>
+  public int MaximumRetainedCapacity { get; set; } = 4 * 1024;
+
+  /// <inheritdoc />
+  public override ArrayBufferWriter<T> Create()
+  {
+    return new ArrayBufferWriter<T>(InitialCapacity);
+  }
+
+  /// <inheritdoc />
+  public override bool Return(ArrayBufferWriter<T> obj)
+  {
+    if (obj.Capacity > MaximumRetainedCapacity)
+    {
+      // Too big. Discard this one.
+      return false;
+    }
+
+    obj.Clear();
+    return true;
+  }
+}

src/Speckle.Sdk.Dependencies/ISdkActivity.cs

@@ -5,6 +5,7 @@ public interface ISdkActivity : IDisposable
   void SetTag(string key, object? value);
   void RecordException(Exception e);
   string TraceId { get; }
+  string SpanId { get; }
   void SetStatus(SdkActivityStatusCode code);
 
   void InjectHeaders(Action<string, string> header);

src/Speckle.Sdk.Dependencies/ISdkActivityFactory.cs

@@ -1,8 +1,20 @@
 using System.Runtime.CompilerServices;
+using Speckle.Connectors.Logging;
 
 namespace Speckle.Sdk.Logging;
 
 public interface ISdkActivityFactory : IDisposable
 {
-  ISdkActivity? Start(string? name = default, [CallerMemberName] string source = "");
+  ISdkActivity? Start(
+    string? name = null,
+    SdkActivityKind kind = SdkActivityKind.Internal,
+    [CallerMemberName] string source = ""
+  );
+
+  ISdkActivity? StartRemote(
+    string traceContext,
+    SdkActivityKind kind,
+    string? name = null,
+    [CallerMemberName] string source = ""
+  );
 }

src/Speckle.Sdk.Dependencies/Pools.cs

@@ -1,3 +1,4 @@
+using System.Buffers;
 using System.Collections.Concurrent;
 using System.Text;
 using Microsoft.Extensions.ObjectPool;
@@ -24,6 +25,9 @@ public static class Pools
   public static Pool<StringBuilder> StringBuilders { get; } =
     new(new StringBuilderPooledObjectPolicy() { MaximumRetainedCapacity = 100 * 1024 * 1024 });
 
+  public static Pool<ArrayBufferWriter<byte>> ArrayBufferWriter { get; } =
+    new(new ArrayBufferWriterPooledObjectPolicy<byte>() { MaximumRetainedCapacity = 100 * 1024 * 1024 });
+
   private sealed class ObjectDictionaryPolicy<TKey, TValue> : IPooledObjectPolicy<Dictionary<TKey, TValue>>
     where TKey : notnull
   {

src/Speckle.Sdk.Dependencies/RepackedChannel.cs

@@ -0,0 +1,49 @@
+using System.Threading.Channels;
+
+namespace Speckle.Sdk.Dependencies;
+
+/// <summary>
+/// For various reasons related to our use of ILRepack.FullAuto,
+/// we cannot use Channels from the SDK project.
+/// We have to keep usage of it inside the Sdk.Dependencies project.
+///
+/// For the sake of quick development, I've wrapped the <see cref="Channel"/> class here in a type
+/// that is safe to use from the SDK project.
+///
+/// As and when we need more functions, we can add them here.
+///
+/// And yes... I'm not very happy about the way we've set this up
+/// </summary>
+/// <typeparam name="T"></typeparam>
+public sealed class RepackedChannel<T>
+{
+  private readonly Channel<T> _channel;
+
+  public RepackedChannel(int capacity, bool singleReader, bool singleWriter)
+  {
+    _channel = Channel.CreateBounded<T>(
+      new BoundedChannelOptions(capacity)
+      {
+        FullMode = BoundedChannelFullMode.Wait,
+        SingleReader = singleReader,
+        SingleWriter = singleWriter,
+      }
+    );
+  }
+
+  public void CompleteWriter() => _channel.Writer.Complete();
+
+  public ValueTask WriteAsync(T item, CancellationToken cancellationToken) =>
+    _channel.Writer.WriteAsync(item, cancellationToken);
+
+  public IAsyncEnumerable<T> ReadAllAsync(CancellationToken cancellationToken) =>
+    _channel.Reader.ReadAllAsync(cancellationToken);
+
+  // public async Task ReadAllAsync(Func<T, Task> callback, CancellationToken cancellationToken)
+  // {
+  //   await foreach (T item in _channel.Reader.ReadAllAsync(cancellationToken))
+  //   {
+  //     await callback.Invoke(item).ConfigureAwait(false);
+  //   }
+  // }
+}

src/Speckle.Sdk.Dependencies/Speckle.Sdk.Dependencies.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup Label="Compiler Properties">
-    <TargetFrameworks>netstandard2.0;net8.0</TargetFrameworks>
+    <TargetFramework>net8.0</TargetFramework>
     <Configurations>Debug;Release;Local</Configurations>
     <ILRepackTargetConfigurations>Debug;Release;Local</ILRepackTargetConfigurations>
     <ILRepackRenameInternalized>true</ILRepackRenameInternalized>
@@ -28,4 +28,37 @@
     <PackageReference Include="Open.ChannelExtensions" PrivateAssets="all" />
     <PackageReference Include="System.Threading.Channels" PrivateAssets="all" />
   </ItemGroup>
+  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.0'">
+    <PackageReference Include="Microsoft.Bcl.AsyncInterfaces" />
+    <PackageReference Include="System.Text.Json" />
+  </ItemGroup>
+  <Target Name="BeforeILRepackPrepareBuild" BeforeTargets="ILRepackPrepareBuild">
+    <ItemGroup>
+      <!--
+      We're Being selective about which assemblies we're il-repacking
+      Avoiding repacling `Microsoft.Bcl.AsyncInterfaces.dll` because we need types like `ValueTask` and `IAsyncEnumerable` to be external
+      
+      Yes, this does beg the question, why are we using `IlRepack.FullAuto` instead of raw ILRepack. Well the truth is, I'd like to move away from FullAuto
+      since it's unmaintaned and is lagging behind ILRepack version.
+      -->
+      <_ILRepackIncludeAssemblies_Items Include="$(OutputPath)System.Numerics.Vectors.dll" />
+      <_ILRepackIncludeAssemblies_Items Include="$(OutputPath)System.Runtime.CompilerServices.Unsafe.dll" />
+      <_ILRepackIncludeAssemblies_Items Include="$(OutputPath)System.Memory.dll" />
+      <_ILRepackIncludeAssemblies_Items Include="$(OutputPath)Open.ChannelExtensions.dll" />
+      <_ILRepackIncludeAssemblies_Items Include="$(OutputPath)System.Threading.Channels.dll" />
+      <_ILRepackIncludeAssemblies_Items Include="$(OutputPath)System.Collections.Immutable.dll" />
+      <_ILRepackIncludeAssemblies_Items Include="$(OutputPath)Polly.dll" />
+      <_ILRepackIncludeAssemblies_Items Include="$(OutputPath)Polly.Contrib.WaitAndRetry.dll" />
+      <_ILRepackIncludeAssemblies_Items Include="$(OutputPath)Polly.Extensions.Http.dll" />
+      <_ILRepackIncludeAssemblies_Items Include="$(OutputPath)Microsoft.Extensions.ObjectPool.dll" />
+      <_ILRepackExcludeAssemblies_Items Include="$(OutputPath)*.dll" Exclude="@(_ILRepackIncludeAssemblies_Items)" />
+    </ItemGroup>
+    <Message
+      Text="These are the packages we are NOT ilrepacking '@(_ILRepackExcludeAssemblies_Items)'"
+      Importance="high"
+    />
+    <PropertyGroup>
+      <ILRepackExcludeAssemblies>@(_ILRepackExcludeAssemblies_Items)</ILRepackExcludeAssemblies>
+    </PropertyGroup>
+  </Target>
 </Project>

src/Speckle.Sdk.Dependencies/SpeckleActivityKind.cs

@@ -0,0 +1,30 @@
+namespace Speckle.Connectors.Logging;
+
+public enum SdkActivityKind
+{
+  /// <summary>
+  /// Default value.
+  /// Indicates that the Activity represents an internal operation within an application, as opposed to an operations with remote parents or children.
+  /// </summary>
+  Internal = 0,
+
+  /// <summary>
+  /// Server activity represents request incoming from external component.
+  /// </summary>
+  Server = 1,
+
+  /// <summary>
+  /// Client activity represents outgoing request to the external component.
+  /// </summary>
+  Client = 2,
+
+  /// <summary>
+  /// Producer activity represents output provided to external components.
+  /// </summary>
+  Producer = 3,
+
+  /// <summary>
+  /// Consumer activity represents output received from an external component.
+  /// </summary>
+  Consumer = 4,
+}

src/Speckle.Sdk.Dependencies/packages.lock.json

@@ -1,167 +1,6 @@
 {
   "version": 2,
   "dependencies": {
-    ".NETStandard,Version=v2.0": {
-      "ILRepack.FullAuto": {
-        "type": "Direct",
-        "requested": "[1.6.0, )",
-        "resolved": "1.6.0",
-        "contentHash": "34qp/HQ0XRIWCjtNGUOslJ6p9eNWqHXZQ+xx1iBCvXy3mj8tEiqIwRG+LubFyKCJITqMh5cpFvFl20/6+Dmy+g==",
-        "dependencies": {
-          "ILRepack": "2.0.33"
-        }
-      },
-      "Microsoft.Extensions.ObjectPool": {
-        "type": "Direct",
-        "requested": "[9.0.4, )",
-        "resolved": "9.0.4",
-        "contentHash": "G7p1k2xVZ+2aVANz0JdSiafr+AHDHeS1kF8+Y0ABbIsByd0erOL59IDXBs9vcdJf3pPV/murO0mbtr4k40QxWw=="
-      },
-      "Microsoft.SourceLink.GitHub": {
-        "type": "Direct",
-        "requested": "[8.0.0, )",
-        "resolved": "8.0.0",
-        "contentHash": "G5q7OqtwIyGTkeIOAc3u2ZuV/kicQaec5EaRnc0pIeSnh9LUjj+PYQrJYBURvDt7twGl2PKA7nSN0kz1Zw5bnQ==",
-        "dependencies": {
-          "Microsoft.Build.Tasks.Git": "8.0.0",
-          "Microsoft.SourceLink.Common": "8.0.0"
-        }
-      },
-      "NETStandard.Library": {
-        "type": "Direct",
-        "requested": "[2.0.3, )",
-        "resolved": "2.0.3",
-        "contentHash": "st47PosZSHrjECdjeIzZQbzivYBJFv6P2nv4cj2ypdI204DO+vZ7l5raGMiX4eXMJ53RfOIg+/s4DHVZ54Nu2A==",
-        "dependencies": {
-          "Microsoft.NETCore.Platforms": "1.1.0"
-        }
-      },
-      "Open.ChannelExtensions": {
-        "type": "Direct",
-        "requested": "[9.1.0, )",
-        "resolved": "9.1.0",
-        "contentHash": "D6c24vMGy1oZ06vmkD2/FNzWHK7ZIihuv2spDgYEeaUp+eobrILQnrNQKRoASFXD4JGfZ7nfvTM0e+AX79dt8Q==",
-        "dependencies": {
-          "Microsoft.Bcl.AsyncInterfaces": "9.0.4",
-          "System.Collections.Immutable": "9.0.4",
-          "System.Threading.Channels": "9.0.4"
-        }
-      },
-      "Polly": {
-        "type": "Direct",
-        "requested": "[7.2.3, )",
-        "resolved": "7.2.3",
-        "contentHash": "DeCY0OFbNdNxsjntr1gTXHJ5pKUwYzp04Er2LLeN3g6pWhffsGuKVfMBLe1lw7x76HrPkLxKEFxBlpRxS2nDEQ=="
-      },
-      "Polly.Contrib.WaitAndRetry": {
-        "type": "Direct",
-        "requested": "[1.1.1, )",
-        "resolved": "1.1.1",
-        "contentHash": "1MUQLiSo4KDkQe6nzQRhIU05lm9jlexX5BVsbuw0SL82ynZ+GzAHQxJVDPVBboxV37Po3SG077aX8DuSy8TkaA=="
-      },
-      "Polly.Extensions.Http": {
-        "type": "Direct",
-        "requested": "[3.0.0, )",
-        "resolved": "3.0.0",
-        "contentHash": "drrG+hB3pYFY7w1c3BD+lSGYvH2oIclH8GRSehgfyP5kjnFnHKQuuBhuHLv+PWyFuaTDyk/vfRpnxOzd11+J8g==",
-        "dependencies": {
-          "Polly": "7.1.0"
-        }
-      },
-      "PolySharp": {
-        "type": "Direct",
-        "requested": "[1.15.0, )",
-        "resolved": "1.15.0",
-        "contentHash": "FbU0El+EEjdpuIX4iDbeS7ki1uzpJPx8vbqOzEtqnl1GZeAGJfq+jCbxeJL2y0EPnUNk8dRnnqR2xnYXg9Tf+g=="
-      },
-      "Speckle.InterfaceGenerator": {
-        "type": "Direct",
-        "requested": "[0.9.6, )",
-        "resolved": "0.9.6",
-        "contentHash": "HKH7tYrYYlCK1ct483hgxERAdVdMtl7gUKW9ijWXxA1UsYR4Z+TrRHYmzZ9qmpu1NnTycSrp005NYM78GDKV1w=="
-      },
-      "System.Threading.Channels": {
-        "type": "Direct",
-        "requested": "[9.0.4, )",
-        "resolved": "9.0.4",
-        "contentHash": "4qBn2H6/aXBpE/Pm3wY5yusY/pEvQz99NlWHrTUji0qCmOdbhhjaALcpmbfW2ksxlPM6i6S+QFLkpOQdyfeKYQ==",
-        "dependencies": {
-          "Microsoft.Bcl.AsyncInterfaces": "9.0.4",
-          "System.Threading.Tasks.Extensions": "4.5.4"
-        }
-      },
-      "ILRepack": {
-        "type": "Transitive",
-        "resolved": "2.0.33",
-        "contentHash": "xb2h1CsOepoYwdXEPui9VcQglwABQwNf9cccZbf+acarEzF5PUp8Xx71nFXIhOgEdm6wrxAoF6xAxK4m/XFRUQ=="
-      },
-      "Microsoft.Build.Tasks.Git": {
-        "type": "Transitive",
-        "resolved": "8.0.0",
-        "contentHash": "bZKfSIKJRXLTuSzLudMFte/8CempWjVamNUR5eHJizsy+iuOuO/k2gnh7W0dHJmYY0tBf+gUErfluCv5mySAOQ=="
-      },
-      "Microsoft.NETCore.Platforms": {
-        "type": "Transitive",
-        "resolved": "1.1.0",
-        "contentHash": "kz0PEW2lhqygehI/d6XsPCQzD7ff7gUJaVGPVETX611eadGsA3A877GdSlU0LRVMCTH/+P3o2iDTak+S08V2+A=="
-      },
-      "Microsoft.SourceLink.Common": {
-        "type": "Transitive",
-        "resolved": "8.0.0",
-        "contentHash": "dk9JPxTCIevS75HyEQ0E4OVAFhB2N+V9ShCXf8Q6FkUQZDkgLI12y679Nym1YqsiSysuQskT7Z+6nUf3yab6Vw=="
-      },
-      "System.Buffers": {
-        "type": "Transitive",
-        "resolved": "4.5.1",
-        "contentHash": "Rw7ijyl1qqRS0YQD/WycNst8hUUMgrMH4FCn1nNm27M4VxchZ1js3fVjQaANHO5f3sN4isvP4a+Met9Y4YomAg=="
-      },
-      "System.Collections.Immutable": {
-        "type": "Transitive",
-        "resolved": "9.0.4",
-        "contentHash": "wfm2NgK22MmBe5qJjp52qzpkeDZKb4l9LbdubhZSehY1z4LS+lld6R+B+UQNb2AZRHu/QJlHxEUcRst5hIEejg==",
-        "dependencies": {
-          "System.Memory": "4.5.5",
-          "System.Runtime.CompilerServices.Unsafe": "6.0.0"
-        }
-      },
-      "System.Memory": {
-        "type": "Transitive",
-        "resolved": "4.5.5",
-        "contentHash": "XIWiDvKPXaTveaB7HVganDlOCRoj03l+jrwNvcge/t8vhGYKvqV+dMv6G4SAX2NoNmN0wZfVPTAlFwZcZvVOUw==",
-        "dependencies": {
-          "System.Buffers": "4.5.1",
-          "System.Numerics.Vectors": "4.4.0",
-          "System.Runtime.CompilerServices.Unsafe": "4.5.3"
-        }
-      },
-      "System.Numerics.Vectors": {
-        "type": "Transitive",
-        "resolved": "4.4.0",
-        "contentHash": "UiLzLW+Lw6HLed1Hcg+8jSRttrbuXv7DANVj0DkL9g6EnnzbL75EB7EWsw5uRbhxd/4YdG8li5XizGWepmG3PQ=="
-      },
-      "System.Runtime.CompilerServices.Unsafe": {
-        "type": "Transitive",
-        "resolved": "6.0.0",
-        "contentHash": "/iUeP3tq1S0XdNNoMz5C9twLSrM/TH+qElHkXWaPvuNOt+99G75NrV0OS2EqHx5wMN7popYjpc8oTjC1y16DLg=="
-      },
-      "System.Threading.Tasks.Extensions": {
-        "type": "Transitive",
-        "resolved": "4.5.4",
-        "contentHash": "zteT+G8xuGu6mS+mzDzYXbzS7rd3K6Fjb9RiZlYlJPam2/hU7JCBZBVEcywNuR+oZ1ncTvc/cq0faRr3P01OVg==",
-        "dependencies": {
-          "System.Runtime.CompilerServices.Unsafe": "4.5.3"
-        }
-      },
-      "Microsoft.Bcl.AsyncInterfaces": {
-        "type": "CentralTransitive",
-        "requested": "[5.0.0, )",
-        "resolved": "9.0.4",
-        "contentHash": "9VGI5kxIvrNG2mqLQZnUR6y/3fcnygD8eNpHR+CqfbnIXvea6nehnYknDKQTxZVPMpzpNca+7DxLBmpdB3q0Bw==",
-        "dependencies": {
-          "System.Threading.Tasks.Extensions": "4.5.4"
-        }
-      }
-    },
     "net8.0": {
       "ILRepack.FullAuto": {
         "type": "Direct",

src/Speckle.Sdk/Api/Blob/BlobApi.cs

@@ -193,30 +193,7 @@ public sealed class BlobApi : IBlobApi
     using var response = await _unauthedClient.SendAsync(requestMessage, cancellationToken).ConfigureAwait(false);
     response.EnsureSuccessStatusCode();
 
-    return ParseEtagHeader(response.Headers);
-  }
-
-  private static string ParseEtagHeader(HttpResponseHeaders headers)
-  {
-    if (!headers.TryGetValues("ETag", out var etagValues))
-    {
-      throw new ArgumentException(
-        "Response does not have an ETag attached to it, cannot use this as an upload",
-        nameof(headers)
-      );
-    }
-
-    var etagValuesArray = etagValues.ToArray();
-
-    if (etagValuesArray.Length != 1)
-    {
-      throw new ArgumentException(
-        $"Expected Etag header to have a single value but got {etagValuesArray.Length}",
-        nameof(headers)
-      );
-    }
-
-    return etagValuesArray[0];
+    return BlobApiHelpers.ParseEtagHeader(response.Headers);
   }
 
   /// <summary>

src/Speckle.Sdk/Api/GraphQL/Client.cs

@@ -87,6 +87,26 @@ public sealed class Client : ISpeckleGraphQLClient, IClient
     catch (Exception ex) when (!ex.IsFatal()) { }
   }
 
+  /// <summary>
+  /// Ensure the <see cref="GQLClient"/>'s websocket is fully initialized.
+  /// <br/>
+  /// You don't <i>need</i> to call this function, if you don't, then it will be setup for you when you call <see cref="SubscribeTo"/> (e.g. when you create a <see cref="Subscription"/>),
+  /// but due to <see cref="GraphQL"/>'s WebSocket implementation, it's not awaited (deferred) thus the subscription make take a while to actually be setup.
+  /// </summary>
+  /// <remarks>
+  /// We only use websockets for GraphQL subscriptions, so if you're not using subscriptions, don't call this
+  ///
+  /// Note. due to other sources (potentially on the GraphQL side) you still need a ~100ms delay between setting up the subscription, and being able to relaibly trigger it
+  /// This should only really negatively affect test projects.
+  /// </remarks>
+  public async Task InitializeWebsocket()
+  {
+    if (GQLClient.WebSocketSubProtocol is null)
+    {
+      await GQLClient.InitializeWebsocketConnection().ConfigureAwait(false);
+    }
+  }
+
   internal async Task<T> ExecuteWithResiliencePolicies<T>(Func<Task<T>> func) =>
     await GraphQLRetry
       .ExecuteAsync<T, SpeckleGraphQLInternalErrorException>(
@@ -134,10 +154,10 @@ public sealed class Client : ISpeckleGraphQLClient, IClient
       activity?.SetStatus(SdkActivityStatusCode.Ok);
       return ret;
     }
-    catch (Exception)
+    catch (Exception ex)
     {
       activity?.SetStatus(SdkActivityStatusCode.Error);
-      // Don't record exception as it's rethrown.
+      activity?.RecordException(ex);
       throw;
     }
   }

src/Speckle.Sdk/Api/GraphQL/Inputs/ModelIngestionInputs.cs

@@ -14,7 +14,8 @@ public record ModelIngestionCreateInput(
   string modelId,
   string projectId,
   string progressMessage,
-  SourceDataInput sourceData
+  SourceDataInput sourceData,
+  int? maxIdleTimeoutSeconds = null
 );
 
 public record ModelIngestionUpdateInput(string ingestionId, string projectId, string progressMessage, double? progress);

src/Speckle.Sdk/Api/GraphQL/Models/ModelIngestion.cs

@@ -6,7 +6,8 @@ public sealed class ModelIngestion
   public required DateTime createdAt { get; init; }
   public required DateTime updatedAt { get; init; }
   public required string modelId { get; init; }
+  public required string projectId { get; init; }
+  public required string userId { get; init; }
   public required bool cancellationRequested { get; init; }
   public required ModelIngestionStatusData statusData { get; init; }
-  // public required LimitedUser user { get; init; }
 }

src/Speckle.Sdk/Api/GraphQL/Models/ModelIngestionStatusData.cs

@@ -6,4 +6,5 @@ public sealed class ModelIngestionStatusData
 {
   public required ModelIngestionStatus status { get; init; }
   public required string? progressMessage { get; init; }
+  public required string? versionId { get; init; }
 }

src/Speckle.Sdk/Api/GraphQL/Resources/ModelIngestionResource.cs

@@ -6,7 +6,7 @@ using Speckle.Sdk.Api.GraphQL.Models.Responses;
 namespace Speckle.Sdk.Api.GraphQL.Resources;
 
 /// <remarks>
-/// Model Ingestion API is available for server versions <c>3.0.3-alpha.583</c> and above
+/// Model Ingestion API is available for server versions <c>3.0.3</c> and above
 /// </remarks>
 public sealed class ModelIngestionResource
 {
@@ -23,7 +23,7 @@ public sealed class ModelIngestionResource
   /// <remarks>
   /// The model ingestion created will have a <c>processing</c> state (not <c>queued</c>). This mutation is designed to be used
   /// by client/connectors that are immediately processing
-  /// Model Ingestion API is available for server versions <c>3.0.3-alpha.583</c> and above
+  /// Model Ingestion API is available for server versions <c>3.0.3</c> and above
   /// </remarks>
   /// <param name="input"></param>
   /// <param name="cancellationToken"></param>
@@ -44,6 +44,8 @@ public sealed class ModelIngestionResource
               createdAt
               updatedAt
               modelId
+              projectId
+              userId
               cancellationRequested
               statusData {
                 ... on HasModelIngestionStatus {
@@ -72,7 +74,7 @@ public sealed class ModelIngestionResource
   }
 
   /// <remarks>
-  /// Model Ingestion API is available for server versions <c>3.0.3-alpha.583</c> and above
+  /// Model Ingestion API is available for server versions <c>3.0.3</c> and above
   /// </remarks>
   /// <param name="modelIngestionId"></param>
   /// <param name="projectId"></param>
@@ -94,6 +96,8 @@ public sealed class ModelIngestionResource
             createdAt
             updatedAt
             modelId
+            projectId
+            userId
             cancellationRequested
             statusData {
               ... on HasModelIngestionStatus {
@@ -102,6 +106,10 @@ public sealed class ModelIngestionResource
               ... on HasProgressMessage {
                 progressMessage
               }
+              ... on ModelIngestionSuccessStatus
+              {
+                versionId
+              }
             }
           }
         }
@@ -121,7 +129,7 @@ public sealed class ModelIngestionResource
   /// For File Import / Cloud integrations only
   /// </summary>
   /// <remarks>
-  /// Model Ingestion API is available for server versions <c>3.0.3-alpha.583</c> and above
+  /// Model Ingestion API is available for server versions <c>3.0.3</c> and above
   /// </remarks>
   /// <param name="input"></param>
   /// <param name="cancellationToken"></param>
@@ -142,6 +150,8 @@ public sealed class ModelIngestionResource
               createdAt
               updatedAt
               modelId
+              projectId
+              userId
               cancellationRequested
               statusData {
                 ... on HasModelIngestionStatus {
@@ -173,7 +183,7 @@ public sealed class ModelIngestionResource
   /// For File Import / Cloud integrations only
   /// </summary>
   /// <remarks>
-  /// Model Ingestion API is available for server versions <c>3.0.3-alpha.583</c> and above
+  /// Model Ingestion API is available for server versions <c>3.0.3</c> and above
   /// </remarks>
   /// <param name="input"></param>
   /// <param name="cancellationToken"></param>
@@ -194,6 +204,8 @@ public sealed class ModelIngestionResource
               createdAt
               updatedAt
               modelId
+              projectId
+              userId
               cancellationRequested
               statusData {
                 ... on HasModelIngestionStatus {
@@ -222,7 +234,7 @@ public sealed class ModelIngestionResource
   }
 
   /// <remarks>
-  /// Model Ingestion API is available for server versions <c>3.0.3-alpha.583</c> and above
+  /// Model Ingestion API is available for server versions <c>3.0.3</c> and above
   /// </remarks>
   /// <param name="input"></param>
   /// <param name="cancellationToken"></param>
@@ -245,6 +257,8 @@ public sealed class ModelIngestionResource
               createdAt
               updatedAt
               modelId
+              projectId
+              userId
               cancellationRequested
               statusData {
                 ... on HasModelIngestionStatus {
@@ -277,7 +291,7 @@ public sealed class ModelIngestionResource
   /// If successful, the job will be in a terminal "successful" state.
   /// </summary>
   /// <remarks>
-  /// Model Ingestion API is available for server versions <c>3.0.3-alpha.583</c> and above
+  /// Model Ingestion API is available for server versions <c>3.0.3</c> and above
   /// </remarks>
   /// <seealso cref="FailWithError"/>
   /// <seealso cref="FailWithCancel"/>
@@ -320,7 +334,7 @@ public sealed class ModelIngestionResource
   /// </summary>
   /// <remarks>
   /// For requested user cancellation, use <see cref="FailWithCancel"/> instead<br/>
-  /// Model Ingestion API is available for server versions <c>3.0.3-alpha.583</c> and above
+  /// Model Ingestion API is available for server versions <c>3.0.3</c> and above
   /// </remarks>
   /// <seealso cref="FailWithCancel"/>
   /// <seealso cref="Complete"/>
@@ -343,6 +357,8 @@ public sealed class ModelIngestionResource
               createdAt
               updatedAt
               modelId
+              projectId
+              userId
               cancellationRequested
               statusData {
                 ... on HasModelIngestionStatus {
@@ -375,7 +391,7 @@ public sealed class ModelIngestionResource
   /// This should only be done if the user has explicitly requested cancellation
   /// Other forms of cancellation use <see cref="FailWithError"/>.
   /// The ingestion should then enter a terminal "canceled" state.<br/>
-  /// Model Ingestion API is available for server versions <c>3.0.3-alpha.583</c> and above
+  /// Model Ingestion API is available for server versions <c>3.0.3</c> and above
   /// </summary>
   /// <seealso cref="FailWithError"/>
   /// <seealso cref="Complete"/>
@@ -398,6 +414,8 @@ public sealed class ModelIngestionResource
               createdAt
               updatedAt
               modelId
+              projectId
+              userId
               cancellationRequested
               statusData {
                 ... on HasModelIngestionStatus {
@@ -434,7 +452,7 @@ public sealed class ModelIngestionResource
   /// via <see cref="SubscriptionResource.CreateProjectModelIngestionCancellationRequestedSubscription"/>
   /// and report it as canceled via  <see cref="ModelIngestionResource.FailWithCancel"/>
   /// See "cooperative cancellation pattern"<br/>
-  /// Model Ingestion API is available for server versions <c>3.0.3-alpha.583</c> and above
+  /// Model Ingestion API is available for server versions <c>3.0.3</c> and above
   /// </remarks>
   /// <seealso cref="FailWithError"/>
   /// <seealso cref="Complete"/>
@@ -457,6 +475,8 @@ public sealed class ModelIngestionResource
               createdAt
               updatedAt
               modelId
+              projectId
+              userId
               cancellationRequested
               statusData {
                 ... on HasModelIngestionStatus {

src/Speckle.Sdk/Api/GraphQL/Resources/ModelResource.cs

@@ -359,4 +359,41 @@ public sealed class ModelResource
       .ConfigureAwait(false);
     return response.data.data.data;
   }
+
+  /// <param name="projectId"></param>
+  /// <param name="cancellationToken"></param>
+  /// <returns></returns>
+  /// <exception cref="SpeckleGraphQLBadInputException">server versions &lt;3.0.11 do not have <c>canCreateIngestion</c> and will throw this exception</exception>
+  /// <inheritdoc cref="ISpeckleGraphQLClient.ExecuteGraphQLRequest{T}"/>
+  public async Task<PermissionCheckResult> CanCreateModelIngestion(
+    string projectId,
+    string modelId,
+    CancellationToken cancellationToken = default
+  )
+  {
+    //language=graphql
+    const string QUERY = """
+      query ModelPermissions($projectId: String!, $modelId: String!) {
+        data:project(id: $projectId) {
+          data:model(id: $modelId) {
+            data:permissions {
+              data:canCreateIngestion {
+                authorized
+                code
+                message
+              }
+            }
+          }
+        }
+      }
+      """;
+    GraphQLRequest request = new() { Query = QUERY, Variables = new { projectId, modelId } };
+
+    var response = await _client
+      .ExecuteGraphQLRequest<
+        RequiredResponse<RequiredResponse<RequiredResponse<RequiredResponse<PermissionCheckResult>>>>
+      >(request, cancellationToken)
+      .ConfigureAwait(false);
+    return response.data.data.data.data;
+  }
 }

src/Speckle.Sdk/Api/GraphQL/Resources/SubscriptionResource.cs

@@ -229,6 +229,8 @@ public sealed class SubscriptionResource : IDisposable
             createdAt
             updatedAt
             modelId
+            projectId
+            userId
             cancellationRequested
             statusData {
               ... on HasModelIngestionStatus {
@@ -237,6 +239,10 @@ public sealed class SubscriptionResource : IDisposable
               ... on HasProgressMessage {
                 progressMessage
               }
+              ... on ModelIngestionSuccessStatus
+              {
+                versionId
+              }
             }
           }
           type

src/Speckle.Sdk/Api/GraphQL/Resources/graphql.config.yml

@@ -1,2 +1,2 @@
-schema: https://app.speckle.systems/graphql
+schema: https://latest.speckle.systems/graphql
 documents: '**/*.graphql'

src/Speckle.Sdk/Credentials/Account.cs

@@ -1,11 +1,8 @@
-using System.Runtime.InteropServices;
 using Speckle.Sdk.Api.GraphQL.Models;
 using Speckle.Sdk.Common;
 
 namespace Speckle.Sdk.Credentials;
 
-[ClassInterface(ClassInterfaceType.AutoDual)]
-[ComVisible(true)]
 public class Account : IEquatable<Account>
 {
   private string _id;
@@ -37,6 +34,8 @@ public class Account : IEquatable<Account>
   public string? refreshToken { get; set; }
 
   public bool isDefault { get; set; }
+
+  [Obsolete("Not used in v3")]
   public bool isOnline { get; set; } = true;
 
   public ServerInfo serverInfo { get; set; }
@@ -101,33 +100,4 @@ public class Account : IEquatable<Account>
   }
 
   #endregion
-
-  internal const string LOCAL_IDENTIFIER_DEPRECATION_MESSAGE = "Local identifiers no longer nesseary";
-
-  /// <summary>
-  /// Retrieves the local identifier for the current user.
-  /// </summary>
-  /// <returns>
-  /// Returns a <see cref="Uri"/> object representing the local identifier for the current user.
-  /// The local identifier is created by appending the user ID as a query parameter to the server URL.
-  /// </returns>
-  /// <remarks>
-  /// Notice that the generated Uri is not intended to be used as a functioning Uri, but rather as a
-  /// unique identifier for a specific account in a local environment. The format of the Uri, containing a query parameter with the user ID,
-  /// serves this specific purpose. Therefore, it should not be used for forming network requests or
-  /// expecting it to lead to an actual webpage. The primary intent of this Uri is for unique identification in a Uri format.
-  /// </remarks>
-  /// <example>
-  ///   This sample shows how to call the GetLocalIdentifier method.
-  ///   <code>
-  ///     Uri localIdentifier = GetLocalIdentifier();
-  ///     Console.WriteLine(localIdentifier);
-  ///   </code>
-  ///   For a fictional `User ID: 123` and `Server: https://speckle.xyz`, the output might look like this:
-  ///   <code>
-  ///     https://speckle.xyz?id=123
-  ///   </code>
-  /// </example>
-  [Obsolete(LOCAL_IDENTIFIER_DEPRECATION_MESSAGE)]
-  internal Uri GetLocalIdentifier() => new($"{serverInfo.url}?id={userInfo.id}");
 }

src/Speckle.Sdk/Credentials/AccountManager.cs

@@ -1,145 +1,35 @@
-using System.Diagnostics;
-using System.Net;
-using System.Net.Http.Headers;
-using System.Security.Cryptography;
-using System.Text;
-using System.Text.RegularExpressions;
-using GraphQL;
 using GraphQL.Client.Http;
 using Microsoft.Extensions.Logging;
 using Speckle.InterfaceGenerator;
 using Speckle.Newtonsoft.Json;
-using Speckle.Sdk.Api.GraphQL;
 using Speckle.Sdk.Api.GraphQL.Models;
-using Speckle.Sdk.Api.GraphQL.Models.Responses;
 using Speckle.Sdk.Common;
-using Speckle.Sdk.Helpers;
 using Speckle.Sdk.Logging;
 using Speckle.Sdk.SQLite;
-using Stream = System.IO.Stream;
 
 namespace Speckle.Sdk.Credentials;
 
 public partial interface IAccountManager : IDisposable;
 
 /// <summary>
-/// Manage accounts locally for desktop applications.
+/// Manages <see cref="Account"/> data in the local sqlite account store
 /// </summary>
 [GenerateAutoInterface]
 public sealed class AccountManager(
-  ISpeckleApplication application,
   ILogger<AccountManager> logger,
-  IGraphQLClientFactory graphQLClientFactory,
-  ISpeckleHttp speckleHttp,
   IAccountFactory accountFactory,
+  IAuthFlow authFlow,
   ISqLiteJsonCacheManagerFactory sqLiteJsonCacheManagerFactory
 ) : IAccountManager
 {
   public const string DEFAULT_SERVER_URL = "https://app.speckle.systems";
 
   private readonly ISqLiteJsonCacheManager _accountStorage = sqLiteJsonCacheManagerFactory.CreateForUser("Accounts");
-  private static volatile bool s_isAddingAccount;
-  private readonly ISqLiteJsonCacheManager _accountAddLockStorage = sqLiteJsonCacheManagerFactory.CreateForUser(
-    "AccountAddFlow"
-  );
 
   [AutoInterfaceIgnore]
   public void Dispose()
   {
     _accountStorage.Dispose();
-    _accountAddLockStorage.Dispose();
-  }
-
-  /// <summary>
-  /// Gets the basic information about a server.
-  /// </summary>
-  /// <param name="server">Server Information</param>
-  /// <returns></returns>
-  /// <exception cref="GraphQLHttpRequestException">Request failed on the HTTP layer (received a non-successful response code)</exception>
-  /// <exception cref="AggregateException"><inheritdoc cref="GraphQLErrorHandler.EnsureGraphQLSuccess(IGraphQLResponse)"/></exception>
-  public async Task<ServerInfo> GetServerInfo(Uri server, CancellationToken cancellationToken = default)
-  {
-    using var gqlClient = graphQLClientFactory.CreateGraphQLClient(server, null);
-
-    //lang=graphql
-    const string QUERY_STRING = "query { serverInfo { name company migration { movedFrom movedTo } } }";
-
-    var request = new GraphQLRequest { Query = QUERY_STRING };
-
-    var response = await gqlClient.SendQueryAsync<ServerInfoResponse>(request, cancellationToken).ConfigureAwait(false);
-
-    response.EnsureGraphQLSuccess();
-
-    ServerInfo serverInfo = response.Data.serverInfo;
-    serverInfo.url = server.ToString().TrimEnd('/');
-
-    return response.Data.serverInfo;
-  }
-
-  /// <summary>
-  /// Gets basic user information given a token and a server.
-  /// </summary>
-  /// <param name="token"></param>
-  /// <param name="server">Server URL</param>
-  /// <returns></returns>
-  /// <exception cref="GraphQLHttpRequestException">Request failed on the HTTP layer (received a non-successful response code)</exception>
-  /// <exception cref="AggregateException"><inheritdoc cref="GraphQLErrorHandler.EnsureGraphQLSuccess(IGraphQLResponse)"/></exception>
-  public async Task<UserInfo> GetUserInfo(string token, Uri server, CancellationToken cancellationToken = default)
-  {
-    using var gqlClient = graphQLClientFactory.CreateGraphQLClient(server, token);
-
-    //language=graphql
-    const string QUERY = """
-      query { 
-        data:activeUser {
-          name 
-          email 
-          id 
-          company
-        } 
-      }
-      """;
-    var request = new GraphQLRequest { Query = QUERY };
-
-    var response = await gqlClient
-      .SendQueryAsync<RequiredResponse<UserInfo>>(request, cancellationToken)
-      .ConfigureAwait(false);
-
-    response.EnsureGraphQLSuccess();
-
-    return response.Data.data;
-  }
-
-  /// <summary>
-  /// The Default Server URL for authentication, can be overridden by placing a file with the alternatrive url in the Speckle folder or with an ENV_VAR
-  /// </summary>
-  public Uri GetDefaultServerUrl()
-  {
-    var customServerUrl = "";
-
-    // first mechanism, check for local file
-    var customServerFile = Path.Combine(SpecklePathProvider.UserSpeckleFolderPath, "server");
-    if (File.Exists(customServerFile))
-    {
-      customServerUrl = File.ReadAllText(customServerFile);
-    }
-
-    // second mechanism, check ENV VAR
-    var customServerEnvVar = Environment.GetEnvironmentVariable("SPECKLE_SERVER");
-    if (!string.IsNullOrEmpty(customServerEnvVar))
-    {
-      customServerUrl = customServerEnvVar;
-    }
-
-    if (!string.IsNullOrEmpty(customServerUrl))
-    {
-      if (Uri.TryCreate(customServerUrl, UriKind.Absolute, out Uri? url))
-      {
-        return url;
-      }
-    }
-
-    return new Uri(DEFAULT_SERVER_URL);
   }
 
   /// <param name="id">The Id of the account to fetch</param>
@@ -151,37 +41,6 @@ public sealed class AccountManager(
       ?? throw new SpeckleAccountManagerException($"Account {id} not found");
   }
 
-  /// <summary>
-  /// Upgrades an account from the account.serverInfo.movedFrom account to the account.serverInfo.movedTo account
-  /// </summary>
-  /// <param name="id">Id of the account to upgrade</param>
-  public void UpgradeAccount(string id)
-  {
-    Account account = GetAccount(id);
-
-    if (account.serverInfo.migration?.movedTo is not Uri upgradeUri)
-    {
-      throw new SpeckleAccountManagerException(
-        $"Server with url {account.serverInfo.url} does not have information about the upgraded server"
-      );
-    }
-
-    account.serverInfo.migration.movedTo = null;
-    account.serverInfo.migration.movedFrom = new Uri(account.serverInfo.url);
-    account.serverInfo.url = upgradeUri.ToString().TrimEnd('/');
-
-    // setting the id to null will force it to be recreated
-    account.id = null!; //TODO this is gross so remove when id is nullable
-
-    RemoveAccount(id);
-    _accountStorage.UpdateObject(account.id.NotNull(), JsonConvert.SerializeObject(account));
-  }
-
-  public IEnumerable<Account> GetAccounts(string serverUrl)
-  {
-    return GetAccounts(new Uri(serverUrl));
-  }
-
   /// <summary>
   /// Returns all unique accounts matching the serverUrl provided. If an account exists on more than one server,
   /// typically because it has been migrated, then only the upgraded account (and therefore server) are returned.
@@ -245,7 +104,6 @@ public sealed class AccountManager(
     static bool IsInvalid(Account ac) => ac.userInfo == null || ac.serverInfo == null;
 
     var sqlAccounts = _accountStorage.GetAllObjects().Select(x => JsonConvert.DeserializeObject<Account>(x.Json));
-    var localAccounts = GetLocalAccounts();
 
     foreach (var acc in sqlAccounts)
     {
@@ -259,119 +117,55 @@ public sealed class AccountManager(
         yield return acc;
       }
     }
-
-    foreach (var acc in localAccounts)
-    {
-      yield return acc;
-    }
   }
 
   /// <summary>
-  /// Gets the local accounts
-  /// These are accounts not handled by Manager and are stored in json format in a local directory
+  /// Refetches all local accounts (in local db), including <see cref="ServerInfo"/> and <see cref="UserInfo"/>.
+  /// If the <see cref="Account.token"/> looks to be expired, this function will also attempt to use the <see cref="Account.refreshToken"/> to refresh it.
+  /// Will write the changes to the local accounts db
   /// </summary>
-  /// <returns></returns>
-  private IList<Account> GetLocalAccounts()
+  /// <seealso cref="UpdateAccount"/>
+  /// <param name="cancellationToken"></param>
+  /// <exception cref="AggregateException"></exception>
+  public async Task UpdateAccount(Account account, CancellationToken cancellationToken = default)
   {
-    var accountsDir = SpecklePathProvider.AccountsFolderPath;
-    if (!Directory.Exists(accountsDir))
+    string oldAccountId = account.id;
+    await UpdateAccountInMemory(account, cancellationToken).ConfigureAwait(false);
+
+    if (oldAccountId != account.id)
     {
-      return Array.Empty<Account>();
+      // ID may have changed, e.g. users email changed, or server url migrated
+      _accountStorage.DeleteObject(oldAccountId);
     }
-
-    var accounts = new List<Account>();
-    string[] files = Directory.GetFiles(accountsDir, "*.json", SearchOption.AllDirectories);
-    foreach (var file in files)
-    {
-      try
-      {
-        var json = File.ReadAllText(file);
-        Account? account = JsonConvert.DeserializeObject<Account>(json);
-
-        if (
-          account is not null
-          && !string.IsNullOrEmpty(account.token)
-          && !string.IsNullOrEmpty(account.userInfo.id)
-          && !string.IsNullOrEmpty(account.userInfo.email)
-          && !string.IsNullOrEmpty(account.userInfo.name)
-          && !string.IsNullOrEmpty(account.serverInfo.url)
-          && !string.IsNullOrEmpty(account.serverInfo.name)
-        )
-        {
-          accounts.Add(account);
-        }
-      }
-      catch (Exception ex) when (!ex.IsFatal())
-      {
-        logger.LogWarning(ex, "Failed to load json account at {filePath}", file);
-      }
-    }
-
-    return accounts;
+    _accountStorage.UpdateObject(account.id, JsonConvert.SerializeObject(account));
   }
 
   /// <summary>
-  /// Refetches user and server info for each account
-  /// </summary>
-  /// <param name="app"> It is defaultAppId in the server. By default it is "sca" to not break existing parts that this function involves.</param>
-  /// <returns></returns>
-  public async Task UpdateAccounts(CancellationToken ct = default, string app = "sca")
-  {
-    // need to ToList() the GetAccounts call or the UpdateObject call at the end of this method
-    // will not work because sqlite does not support concurrent db calls
-    foreach (var account in GetAccounts().ToList())
-    {
-      try
-      {
-        Uri url = new(account.serverInfo.url);
-        var userServerInfo = await accountFactory.GetUserServerInfo(url, account.token, ct).ConfigureAwait(false);
-
-        //the token has expired
-        //TODO: once we get a token expired exception from the server use that instead
-        if (userServerInfo.activeUser == null || userServerInfo.serverInfo == null)
-        {
-          // We were initially was handling refresh token here bc quite a while ago server was returning null
-          // for activeUser and serverInfo instead of throwing exception. In short, our logic moved into catch block to cover both.
-          throw new SpeckleException("Token is expired");
-        }
-
-        account.isOnline = true;
-        account.userInfo = userServerInfo.activeUser;
-        account.serverInfo = userServerInfo.serverInfo;
-      }
-      catch (OperationCanceledException)
-      {
-        throw;
-      }
-      catch (Exception ex) when (!ex.IsFatal())
-      {
-        await RefreshAndSetAccountToken(account, app).ConfigureAwait(false);
-      }
-
-      ct.ThrowIfCancellationRequested();
-      _accountStorage.UpdateObject(account.id, JsonConvert.SerializeObject(account));
-    }
-  }
-
-  /// <summary>
-  /// Mutates the account with new tokens.
+  /// Refetches the <paramref name="account"/> information, including <see cref="ServerInfo"/> and <see cref="UserInfo"/>
+  ///
+  /// Will only mutate <paramref name="account"/> in memory only, and only if successful.
   /// </summary>
+  /// <seealso cref="UpdateAccount"/>
   /// <param name="account"></param>
-  /// <param name="app"></param>
-  private async Task RefreshAndSetAccountToken(Account account, string app)
+  /// <param name="cancellationToken"></param>
+  /// <exception cref="GraphQLHttpRequestException"></exception>
+  public async Task UpdateAccountInMemory(Account account, CancellationToken cancellationToken = default)
   {
-    try
+    Uri url = account.serverInfo.migration?.movedTo ?? new(account.serverInfo.url);
+
+    ActiveUserServerInfoResponse userServerInfo = await accountFactory
+      .GetUserServerInfo(url, account.token, cancellationToken)
+      .ConfigureAwait(false);
+
+    if (userServerInfo.activeUser == null)
     {
-      Uri url = new(account.serverInfo.url);
-      var tokenResponse = await GetRefreshedToken(account.refreshToken, url, app).ConfigureAwait(false);
-      account.token = tokenResponse.token;
-      account.refreshToken = tokenResponse.refreshToken;
-      account.isOnline = true;
-    }
-    catch (Exception ex) when (!ex.IsFatal())
-    {
-      account.isOnline = false;
+      throw new SpeckleException("GraphQL response indicated that the ActiveUser could not be found");
     }
+    account.userInfo = userServerInfo.activeUser;
+    account.serverInfo = userServerInfo.serverInfo;
+    //This is a bit gross, since id is not marked nullable
+    //but this will force re-generate the id (e.g. if the user's email, or  servers url has changed)
+    account.id = null!;
   }
 
   /// <summary>
@@ -412,325 +206,103 @@ public sealed class AccountManager(
   }
 
   /// <summary>
-  /// Retrieves the local identifier for the specified account.
+  /// Adds an account to local storage by prompting the user to log in via their browser.
   /// </summary>
-  /// <param name="account">The account for which to retrieve the local identifier.</param>
-  /// <returns>The local identifier for the specified account in the form of "SERVER_URL?u=USER_ID".</returns>
-  /// <remarks>
-  /// <inheritdoc cref="Account.GetLocalIdentifier"/>
-  /// </remarks>
-  [Obsolete(Account.LOCAL_IDENTIFIER_DEPRECATION_MESSAGE)]
-  public Uri? GetLocalIdentifierForAccount(Account account)
-  {
-    var identifier = account.GetLocalIdentifier();
-
-    // Validate account is stored locally
-    var searchResult = GetAccountForLocalIdentifier(identifier);
-
-    return searchResult == null ? null : identifier;
-  }
-
-  public async Task<UserInfo> Validate(Account account)
-  {
-    Uri server = new(account.serverInfo.url);
-    return await GetUserInfo(account.token, server).ConfigureAwait(false);
-  }
-
-  /// <summary>
-  /// Gets the account that corresponds to the given local identifier.
-  /// </summary>
-  /// <param name="localIdentifier">The local identifier of the account.</param>
-  /// <returns>The account that matches the local identifier, or null if no match is found.</returns>
-  [Obsolete(Account.LOCAL_IDENTIFIER_DEPRECATION_MESSAGE)]
-  public Account? GetAccountForLocalIdentifier(Uri localIdentifier)
-  {
-    var searchResult = GetAccounts()
-      .FirstOrDefault(acc =>
-      {
-        var id = acc.GetLocalIdentifier();
-        return id == localIdentifier;
-      });
-
-    return searchResult;
-  }
-
-  private Uri EnsureCorrectServerUrl(Uri? server)
-  {
-    var localUrl = server;
-    if (localUrl == null)
-    {
-      localUrl = GetDefaultServerUrl();
-      logger.LogDebug("The provided server url was null or empty. Changed to the default url {serverUrl}", localUrl);
-    }
-    return localUrl;
-  }
-
-  private void EnsureGetAccessCodeFlowIsSupported()
-  {
-    if (!HttpListener.IsSupported)
-    {
-      logger.LogError("HttpListener not supported");
-      throw new PlatformNotSupportedException("Your operating system is not supported");
-    }
-  }
-
-  private async Task<string> GetAccessCode(Uri server, string challenge, TimeSpan timeout)
-  {
-    EnsureGetAccessCodeFlowIsSupported();
-
-    logger.LogDebug("Starting auth process for {server}/authn/verify/sca/{challenge}", server, challenge);
-
-    var accessCode = "";
-
-    Process.Start(new ProcessStartInfo($"{server}/authn/verify/sca/{challenge}") { UseShellExecute = true });
-
-    var task = Task.Run(() =>
-    {
-      using var listener = new HttpListener();
-      var localUrl = "http://localhost:29363/";
-      listener.Prefixes.Add(localUrl);
-      listener.Start();
-      logger.LogDebug("Listening for auth redirects on {localUrl}", localUrl);
-      // Note: The GetContext method blocks while waiting for a request.
-      HttpListenerContext context = listener.GetContext();
-      HttpListenerRequest request = context.Request;
-      HttpListenerResponse response = context.Response;
-
-      accessCode = request.QueryString["access_code"];
-      logger.LogDebug("Got access code {accessCode}", accessCode);
-
-      string message =
-        accessCode != null
-          ? "Success!<br/><br/>You can close this window now.<script>window.close();</script>"
-          : "Oups, something went wrong...!";
-
-      var responseString =
-        $"<HTML><BODY Style='background: linear-gradient(to top right, #ffffff, #c8e8ff); font-family: Roboto, sans-serif; font-size: 2rem; font-weight: 500; text-align: center;'><br/>{message}</BODY></HTML>";
-      byte[] buffer = Encoding.UTF8.GetBytes(responseString);
-      response.ContentLength64 = buffer.Length;
-      Stream output = response.OutputStream;
-      output.Write(buffer, 0, buffer.Length);
-      output.Close();
-      logger.LogDebug("Processed finished processing the access code");
-      listener.Stop();
-      listener.Close();
-    });
-
-    var completedTask = await Task.WhenAny(task, Task.Delay(timeout)).ConfigureAwait(false);
-
-    // this is means the task timed out
-    if (completedTask != task)
-    {
-      logger.LogWarning(
-        "Local auth flow failed to complete within the timeout window. Access code is {accessCode}",
-        accessCode
-      );
-      throw new AuthFlowException("Local auth flow failed to complete within the timeout window");
-    }
-
-    if (task.IsFaulted && task.Exception is not null)
-    {
-      logger.LogError(
-        task.Exception,
-        "Getting access code flow failed with {exceptionMessage}",
-        task.Exception.Message
-      );
-      throw new AuthFlowException($"Auth flow failed: {task.Exception.Message}", task.Exception);
-    }
-
-    // task completed within timeout
-    logger.LogInformation(
-      "Local auth flow completed successfully within the timeout window. Access code is {accessCode}",
-      accessCode
-    );
-    return accessCode;
-  }
-
-  private async Task<Account> CreateAccount(string accessCode, string challenge, Uri server)
-  {
-    try
-    {
-      var tokenResponse = await GetToken(accessCode, challenge, server).ConfigureAwait(false);
-
-      var account = await accountFactory
-        .CreateAccount(server, tokenResponse.token, tokenResponse.refreshToken)
-        .ConfigureAwait(false);
-
-      account.isDefault = !GetAccounts().Any();
-
-      logger.LogInformation("Successfully created account for {serverUrl}", server);
-
-      return account;
-    }
-    catch (Exception ex) when (!ex.IsFatal())
-    {
-      throw new SpeckleAccountManagerException("Failed to create account from access code and challenge", ex);
-    }
-  }
-
-  private void TryLockAccountAddFlow(TimeSpan timespan)
-  {
-    // use a static variable to quickly
-    // prevent launching this flow multiple times
-    if (s_isAddingAccount)
-    {
-      // this should probably throw with an error message
-      throw new SpeckleAccountFlowLockedException("The account add flow is already launched.");
-    }
-
-    // this uses the SQLite transport to store locks
-    var lockIds = _accountAddLockStorage.GetAllObjects().Select(x => x.Id).OrderByDescending(d => d).ToList();
-    var now = DateTime.Now;
-    foreach (var l in lockIds)
-    {
-      var lockArray = l.Split('@');
-      var lockName = lockArray.Length == 2 ? lockArray[0] : "the other app";
-      var lockTime =
-        lockArray.Length == 2
-          ? DateTime.ParseExact(lockArray[1], "o", null)
-          : DateTime.ParseExact(lockArray[0], "o", null);
-
-      if (lockTime > now)
-      {
-        var lockString = string.Format("{0:mm} minutes {0:ss} seconds", lockTime - now);
-        throw new SpeckleAccountFlowLockedException(
-          $"The account add flow was already started in {lockName}, retry in {lockString}"
-        );
-      }
-    }
-
-    var lockId = application.ApplicationAndVersion + "@" + DateTime.Now.Add(timespan).ToString("o");
-
-    // using the lock release time as an id and value
-    // for ease of deletion and retrieval
-    _accountAddLockStorage.SaveObject(lockId, lockId);
-    s_isAddingAccount = true;
-  }
-
-  private void UnlockAccountAddFlow()
-  {
-    s_isAddingAccount = false;
-    // make sure all old locks are removed
-    foreach (var (id, _) in _accountAddLockStorage.GetAllObjects())
-    {
-      _accountAddLockStorage.DeleteObject(id);
-    }
-  }
-
-  /// <summary>
-  /// Adds an account by propting the user to log in via a web flow
-  /// </summary>
-  /// <param name="server">Server to use to add the account, if not provied the default Server will be used</param>
+  /// <example>
+  /// <code>
+  /// Account account = await AuthenticateAccount(new Uri("https://app.speckle.systems"), TimeSpan.FromMinutes(1));
+  /// </code>
+  /// </example>
+  /// <param name="serverUrl"></param>
+  /// <param name="timeout">Timeout for user to auth with browser, recommend 1 min timeout</param>
+  /// <param name="cancellationToken"></param>
   /// <returns></returns>
-  public async Task AddAccount(Uri? server = null)
+  public async Task<Account> AuthenticateAccount(Uri serverUrl, TimeSpan timeout, CancellationToken cancellationToken)
   {
-    logger.LogDebug("Starting to add account for {serverUrl}", server);
+    logger.LogDebug("Starting to add account for {ServerUrl}", serverUrl);
 
-    server = EnsureCorrectServerUrl(server);
+    TokenExchangeResponse tokenResponse = await authFlow
+      .TriggerAuthFlowWithTimeout(serverUrl, AuthApp.ConnectorsV3, timeout, cancellationToken)
+      .ConfigureAwait(false);
 
-    // locking for 1 minute
-    var timeout = TimeSpan.FromMinutes(1);
-    // this is not part of the try finally block
-    // we do not want to clean up the existing locks
-    TryLockAccountAddFlow(timeout);
-    var challenge = GenerateChallenge();
+    return await CreateAndAddAccount(serverUrl, tokenResponse, cancellationToken).ConfigureAwait(false);
+  }
 
-    try
+  public async Task<Account> CreateAndAddAccount(
+    Uri serverUrl,
+    TokenExchangeResponse tokenResponse,
+    CancellationToken cancellationToken
+  )
+  {
+    var account = await accountFactory
+      .CreateAccount(serverUrl, tokenResponse.token, tokenResponse.refreshToken, cancellationToken)
+      .ConfigureAwait(false);
+    account.isDefault = !GetAccounts().Any();
+
+    _accountStorage.SaveObject(account.id, JsonConvert.SerializeObject(account));
+    logger.LogInformation("Successfully authenticated account {AccountId} for {ServerUrl}", account.id, serverUrl);
+    return account;
+  }
+
+  /// <summary>
+  /// The Default Server URL for authentication, can be overridden by placing a file with the alternative url in the Speckle folder or with an ENV_VAR
+  /// </summary>
+  [Obsolete("Unused")]
+  public Uri GetDefaultServerUrl()
+  {
+    var customServerUrl = "";
+
+    // first mechanism, check for local file
+    var customServerFile = Path.Combine(SpecklePathProvider.UserSpeckleFolderPath, "server");
+    if (File.Exists(customServerFile))
     {
-      string accessCode = await GetAccessCode(server, challenge, timeout).ConfigureAwait(false);
-      if (string.IsNullOrEmpty(accessCode))
+      customServerUrl = File.ReadAllText(customServerFile);
+    }
+
+    // second mechanism, check ENV VAR
+    var customServerEnvVar = Environment.GetEnvironmentVariable("SPECKLE_SERVER");
+    if (!string.IsNullOrEmpty(customServerEnvVar))
+    {
+      customServerUrl = customServerEnvVar;
+    }
+
+    if (!string.IsNullOrEmpty(customServerUrl))
+    {
+      if (Uri.TryCreate(customServerUrl, UriKind.Absolute, out Uri? url))
       {
-        throw new SpeckleAccountManagerException("Access code is invalid");
+        return url;
       }
+    }
 
-      var account = await CreateAccount(accessCode, challenge, server).ConfigureAwait(false);
-
-      //if the account already exists it will not be added again
-      _accountStorage.SaveObject(account.id, JsonConvert.SerializeObject(account));
-      logger.LogDebug("Finished adding account {accountId} for {serverUrl}", account.id, server);
-    }
-    catch (SpeckleAccountManagerException ex)
-    {
-      logger.LogCritical(ex, "Failed to add account: {exceptionMessage}", ex.Message);
-      // rethrowing any known errors
-      throw;
-    }
-    catch (Exception ex) when (!ex.IsFatal())
-    {
-      logger.LogCritical(ex, "Failed to add account: {exceptionMessage}", ex.Message);
-      throw new SpeckleAccountManagerException($"Failed to add account: {ex.Message}", ex);
-    }
-    finally
-    {
-      UnlockAccountAddFlow();
-    }
+    return new Uri(DEFAULT_SERVER_URL);
   }
 
-  private async Task<TokenExchangeResponse> GetToken(string accessCode, string challenge, Uri server)
+  [Obsolete("Use Uri overload")]
+  public IEnumerable<Account> GetAccounts(string serverUrl)
   {
-    try
-    {
-      using var client = speckleHttp.CreateHttpClient();
-
-      var body = new
-      {
-        appId = "sca",
-        appSecret = "sca",
-        accessCode,
-        challenge,
-      };
-
-      using var content = new StringContent(JsonConvert.SerializeObject(body));
-      content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
-      var response = await client.PostAsync(new Uri(server, "/auth/token"), content).ConfigureAwait(false);
-
-      return JsonConvert
-        .DeserializeObject<TokenExchangeResponse>(await response.Content.ReadAsStringAsync().ConfigureAwait(false))
-        .NotNull();
-    }
-    catch (Exception ex) when (!ex.IsFatal())
-    {
-      throw new SpeckleException($"Failed to get authentication token from {server}", ex);
-    }
+    return GetAccounts(new Uri(serverUrl));
   }
 
-  private async Task<TokenExchangeResponse> GetRefreshedToken(string? refreshToken, Uri server, string app = "sca")
-  {
-    try
-    {
-      using var client = speckleHttp.CreateHttpClient();
+  [Obsolete("Use UpdateAccount instead for more control over error handling", true)]
+  public Task UpdateAccounts(CancellationToken ct = default, string app = "sca") => throw new NotImplementedException();
 
-      var body = new
-      {
-        appId = app,
-        appSecret = app,
-        refreshToken,
-      };
+  [Obsolete("Use UpdateAccount instead", true)]
+  public void UpgradeAccount(string id) => throw new NotImplementedException();
 
-      using var content = new StringContent(JsonConvert.SerializeObject(body));
-      content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
-      var response = await client.PostAsync(new Uri(server, "/auth/token"), content).ConfigureAwait(false);
+  [Obsolete($"Use {nameof(AuthenticateAccount)} instead", true)]
+  public Task AddAccount(Uri? server = null) => throw new NotImplementedException();
 
-      return JsonConvert
-        .DeserializeObject<TokenExchangeResponse>(await response.Content.ReadAsStringAsync().ConfigureAwait(false))
-        .NotNull();
-    }
-    catch (Exception ex) when (!ex.IsFatal())
-    {
-      throw new SpeckleException($"Failed to get refreshed token from {server}", ex);
-    }
-  }
+  [Obsolete("Use serverInfo stored on a client instead", true)]
+  public Task<ServerInfo> GetServerInfo(Uri server, CancellationToken cancellationToken = default) =>
+    throw new NotImplementedException();
 
-  private static string GenerateChallenge()
-  {
-#if NET8_0
-    byte[] challengeData = RandomNumberGenerator.GetBytes(32);
-#else
-    using RNGCryptoServiceProvider rng = new();
-    byte[] challengeData = new byte[32];
-    rng.GetBytes(challengeData);
-#endif
-    //escaped chars like % do not play nice with the server
-    return Regex.Replace(Convert.ToBase64String(challengeData), @"[^\w\.@-]", "");
-  }
+  [Obsolete("Use userInfo stored on a client instead", true)]
+  public Task<UserInfo> GetUserInfo(string token, Uri server, CancellationToken cancellationToken = default) =>
+    throw new NotImplementedException();
+
+  [Obsolete("Accounts must now be stored in sqlite db, no more json workaround", true)]
+  public IList<Account> GetLocalAccounts() => throw new NotImplementedException();
+
+  [Obsolete("Use UpdateAccount or UpdateAccountInMemory Instead", true)]
+  public IList<Account> Validate() => throw new NotImplementedException();
 }

src/Speckle.Sdk/Credentials/AuthApp.cs

@@ -0,0 +1,13 @@
+namespace Speckle.Sdk.Credentials;
+
+public readonly record struct AuthApp(string AppId, string AppSecret, Uri CallbackUrl)
+{
+  //These values are defined on the server, and specify the scopes the app is requesting
+  public static AuthApp ConnectorsV3 { get; } =
+    new()
+    {
+      AppId = "connectrV3",
+      AppSecret = "connectrV3",
+      CallbackUrl = new Uri("http://localhost:29355"),
+    };
+}

src/Speckle.Sdk/Credentials/AuthFlow.cs

@@ -0,0 +1,330 @@
+using System.Diagnostics;
+using System.Diagnostics.Contracts;
+using System.Net;
+using System.Net.Http.Headers;
+using System.Security.Cryptography;
+using System.Text;
+using Speckle.InterfaceGenerator;
+using Speckle.Newtonsoft.Json;
+using Speckle.Sdk.Common;
+using Speckle.Sdk.Helpers;
+using Speckle.Sdk.Logging;
+
+namespace Speckle.Sdk.Credentials;
+
+/// <summary>
+/// Authentication flow with the Speckle Server to create a application token for the <c>connectorsV3</c> application
+/// Starts the browser based authentication flow where the user's browser will be opened, they'll be asked to
+/// confirm permission, then an access code will be given via a <see cref="HttpListener"/> which will be exchanged
+/// for a <see cref="TokenExchangeResponse"/>
+/// </summary>
+/// <remarks>
+/// Note, this class is not coupled in any way to <see cref="Account"/>
+/// lets keep it that way...
+/// See instead <see cref="AccountManager"/>
+/// </remarks>
+[GenerateAutoInterface]
+public sealed class AuthFlow(ISdkActivityFactory activityFactory, ISpeckleHttp speckleHttp) : IAuthFlow
+{
+  private readonly JsonSerializerSettings _serializerSettings = new()
+  {
+    MissingMemberHandling = MissingMemberHandling.Error,
+    NullValueHandling = NullValueHandling.Ignore,
+  };
+
+  public async Task<TokenExchangeResponse> TriggerAuthFlowWithTimeout(
+    Uri serverUrl,
+    AuthApp authApp,
+    TimeSpan timeout,
+    CancellationToken cancellationToken
+  )
+  {
+    using HttpClient client = speckleHttp.CreateHttpClient();
+
+    Uri tokenEndpoint = new(serverUrl, "/oauth/token");
+    string codeVerifier = GenerateCodeVerifier();
+    Uri authnVerify;
+    using var req = await client.GetAsync(tokenEndpoint, cancellationToken).ConfigureAwait(false);
+    bool useLegacyEndpoint = req.StatusCode != HttpStatusCode.OK;
+
+    if (useLegacyEndpoint)
+    {
+      string challenge = codeVerifier; // Old endpoint only supports PKCE "plain" method
+      authnVerify = new($"/authn/verify/{authApp.AppId}/{challenge}", UriKind.Relative);
+      tokenEndpoint = new(serverUrl, "/auth/token");
+    }
+    else
+    {
+      string challenge = GenerateCodeChallenge(codeVerifier);
+      authnVerify = new($"/authn/verify/{authApp.AppId}/{challenge}?code_challenge_method=S256", UriKind.Relative);
+    }
+
+    Uri endpoint = new(serverUrl, authnVerify);
+    _ = Process.Start(new ProcessStartInfo(endpoint.ToString()) { UseShellExecute = true });
+    string accessCode = await RunListenerWithTimeout(authApp.CallbackUrl, timeout, cancellationToken)
+      .ConfigureAwait(false);
+
+    object body = useLegacyEndpoint
+      ? new
+      {
+        appId = authApp.AppId,
+        appSecret = authApp.AppSecret,
+        accessCode = accessCode,
+        challenge = codeVerifier,
+      }
+      : new
+      {
+        appId = authApp.AppId,
+        accessCode = accessCode,
+        codeVerifier = codeVerifier,
+      };
+
+    return await ExchangeAccessCodeForToken(
+        client,
+        JsonConvert.SerializeObject(body, _serializerSettings),
+        tokenEndpoint,
+        cancellationToken
+      )
+      .ConfigureAwait(false);
+  }
+
+  /// <summary>
+  ///
+  /// </summary>
+  /// <param name="applicationCallbackUrl"></param>
+  /// <param name="timeout"></param>
+  /// <param name="userCancellation"></param>
+  /// <returns></returns>
+  /// <exception cref="OperationCanceledException"><paramref name="userCancellation"/> requested cancel</exception>
+  /// <exception cref="TimeoutException">timeout was reached</exception>
+  public async Task<string> RunListenerWithTimeout(
+    Uri applicationCallbackUrl,
+    TimeSpan timeout,
+    CancellationToken userCancellation
+  )
+  {
+    using CancellationTokenSource cancelOnTimeout = new(timeout);
+    using CancellationTokenSource linkedSource = CancellationTokenSource.CreateLinkedTokenSource(
+      cancelOnTimeout.Token,
+      userCancellation
+    );
+
+    try
+    {
+      using var activity = activityFactory.Start("Listening for authflow access code");
+
+      return await RunListener(applicationCallbackUrl, linkedSource.Token).ConfigureAwait(false);
+    }
+    catch (OperationCanceledException) when (userCancellation.IsCancellationRequested)
+    {
+      throw;
+    }
+    catch (OperationCanceledException ex) when (cancelOnTimeout.IsCancellationRequested)
+    {
+      throw new TimeoutException($"Auth flow was cancelled after {timeout:g} timeout", ex);
+    }
+  }
+
+  /// <summary>
+  ///
+  /// </summary>
+  /// <param name="refreshToken"></param>
+  /// <param name="serverUrl"></param>
+  /// <param name="authApp">Auth app, needs to match the app that generated the refresh token originally</param>
+  /// <param name="cancellationToken"></param>
+  /// <exception cref="HttpRequestException">HTTP exceptions</exception>
+  /// <exception cref="JsonSerializationException">Server response was invalid or partial</exception>
+  /// <exception cref="ArgumentOutOfRangeException ">Invalid <paramref name="serverUrl"/> (must be absolute url)</exception>
+  /// <exception cref="OperationCanceledException"><paramref name="cancellationToken"/> requested cancel</exception>
+  /// <returns></returns>
+  public async Task<TokenExchangeResponse> GetRefreshedToken(
+    string? refreshToken,
+    Uri serverUrl,
+    AuthApp authApp,
+    CancellationToken cancellationToken
+  )
+  {
+    using var client = speckleHttp.CreateHttpClient();
+
+    var body = new
+    {
+      appId = authApp.AppId,
+      appSecret = authApp.AppSecret,
+      refreshToken = refreshToken,
+    };
+
+    using var content = new StringContent(JsonConvert.SerializeObject(body, _serializerSettings));
+    content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
+    var response = await client
+      .PostAsync(new Uri(serverUrl, "/auth/token"), content, cancellationToken)
+      .ConfigureAwait(false);
+    response.EnsureSuccessStatusCode();
+
+#if NET8_0_OR_GREATER
+    string read = await response.Content.ReadAsStringAsync(cancellationToken).ConfigureAwait(false);
+#else
+    string read = await response.Content.ReadAsStringAsync().ConfigureAwait(false);
+#endif
+    return JsonConvert.DeserializeObject<TokenExchangeResponse>(read, _serializerSettings).NotNull();
+  }
+
+  private static async Task<HttpListenerContext> GetContext(HttpListener listener, CancellationToken cancellationToken)
+  {
+    //GetContextAsync doesn't support cancellation, so we have to do this song and dance...
+    Task timeoutTask = Task.Delay(Timeout.Infinite, cancellationToken);
+    Task<HttpListenerContext> getContextTask = listener.GetContextAsync();
+
+    Task completed = await Task.WhenAny(getContextTask, timeoutTask).ConfigureAwait(false);
+    if (completed == getContextTask)
+    {
+      return getContextTask.Result;
+    }
+
+    cancellationToken.ThrowIfCancellationRequested();
+
+    throw new InvalidOperationException("Cancellation should have thrown, this shouldn't be possible");
+  }
+
+  public static async Task<string> RunListener(Uri localUrl, CancellationToken cancellationToken)
+  {
+    using HttpListener listener = new();
+    listener.Prefixes.Add(localUrl.ToString());
+    listener.Start();
+
+    HttpListenerContext context = await GetContext(listener, cancellationToken).ConfigureAwait(false);
+    HttpListenerRequest request = context.Request;
+    using HttpListenerResponse response = context.Response;
+
+    string? accessCode = request.QueryString["access_code"];
+    string? denied = request.QueryString["denied"];
+    bool isDenied = denied == "true";
+
+    if (isDenied)
+    {
+      //lang=html
+      WriteResponse(
+        """
+        <h1>Denied!</h1>
+        <br/><br/>
+        Please close this window and return to your Speckle Connector.
+        """
+      );
+      throw new AuthFlowException("Authentication flow was denied"); //denied presumably by the user
+    }
+    else if (accessCode != null)
+    {
+      //lang=html
+      WriteResponse(
+        """
+        <h1>Success!</h1>
+        <br/><br/>
+        Your Speckle Connector is now authorized
+        <br/><br/>
+        You may now close this window and return to your Speckle Connector
+        """
+      );
+      return accessCode;
+    }
+    else
+    {
+      //lang=html
+      WriteResponse(
+        """
+        <h1>Failed!</h1>
+        <br/><br/>
+        Something went wrong trying to authorize your Speckle Connector
+        <br/><br/>
+        Please close this window and try again from your Speckle Connector.
+        """
+      );
+      throw new AuthFlowException("Failed to receive access code");
+    }
+
+    void WriteResponse(string message)
+    {
+      //lang=html
+      string responseString = $"""
+        <HTML>
+            <BODY Style='background: #FAFAFAFF; font-family: Inter, Roboto, sans-serif; font-size: 1rem; font-weight: 500; text-align: center;'>
+                <br/>
+                {message}
+            </BODY>
+        </HTML>
+        """;
+
+      byte[] buffer = Encoding.UTF8.GetBytes(responseString);
+      response.ContentLength64 = buffer.Length;
+      response.OutputStream.Write(buffer, 0, buffer.Length);
+    }
+  }
+
+  private async Task<TokenExchangeResponse> ExchangeAccessCodeForToken(
+    HttpClient client,
+    string jsonContent,
+    Uri tokenEndpoint,
+    CancellationToken cancellationToken
+  )
+  {
+    using StringContent content = new(jsonContent);
+    content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
+
+    using HttpResponseMessage response = await client
+      .PostAsync(tokenEndpoint, content, cancellationToken)
+      .ConfigureAwait(false);
+    response.EnsureSuccessStatusCode();
+
+#if NET8_0_OR_GREATER
+    string read = await response.Content.ReadAsStringAsync(cancellationToken).ConfigureAwait(false);
+#else
+    string read = await response.Content.ReadAsStringAsync().ConfigureAwait(false);
+#endif
+
+    return JsonConvert.DeserializeObject<TokenExchangeResponse>(read, _serializerSettings).NotNull();
+  }
+
+  [Pure]
+  public static string GenerateCodeVerifier()
+  {
+#if NET8_0_OR_GREATER
+    Span<byte> codeVerifierData = stackalloc byte[32];
+    RandomNumberGenerator.Fill(codeVerifierData);
+#else
+    using RNGCryptoServiceProvider rng = new();
+    byte[] codeVerifierData = new byte[32];
+    rng.GetBytes(codeVerifierData);
+#endif
+
+    return Base64UrlEncode(codeVerifierData);
+  }
+
+  [Pure]
+  public static string GenerateCodeChallenge(string codeVerifier)
+  {
+#if NET8_0_OR_GREATER
+    int byteCount = Encoding.UTF8.GetByteCount(codeVerifier.AsSpan());
+    Span<byte> codeVerifierBytes = stackalloc byte[byteCount];
+    Encoding.UTF8.GetBytes(codeVerifier, codeVerifierBytes);
+    Span<byte> challengeData = stackalloc byte[SHA256.HashSizeInBytes];
+    SHA256.HashData(codeVerifierBytes, challengeData);
+#else
+    byte[] codeVerifierBytes = Encoding.UTF8.GetBytes(codeVerifier);
+    using SHA256 hash = SHA256.Create();
+    byte[] challengeData = hash.ComputeHash(codeVerifierBytes);
+#endif
+    return Base64UrlEncode(challengeData);
+  }
+
+  [Pure]
+  private static string Base64UrlEncode(
+#if NET8_0_OR_GREATER
+    ReadOnlySpan<byte> bytes
+#else
+    byte[] bytes
+#endif
+  )
+  {
+    // Base64Url is available in .NET 9, or via the Microsoft.Bcl.Memory polyfill
+    // But for simplicity r.e. dll dependencies, we're doing it the dumb way...
+    return Convert.ToBase64String(bytes).Replace('+', '-').Replace('/', '_').TrimEnd('=');
+  }
+}

src/Speckle.Sdk/Credentials/AuthFlowException.cs

@@ -1,14 +0,0 @@
-namespace Speckle.Sdk.Credentials;
-
-#pragma warning disable CA2237
-public sealed class AuthFlowException : Exception
-#pragma warning restore CA2237
-{
-  public AuthFlowException(string? message, Exception? innerException)
-    : base(message, innerException) { }
-
-  public AuthFlowException(string? message)
-    : base(message) { }
-
-  public AuthFlowException() { }
-}

src/Speckle.Sdk/Credentials/Exceptions.cs

@@ -1,5 +1,16 @@
 namespace Speckle.Sdk.Credentials;
 
+public sealed class AuthFlowException : SpeckleException
+{
+  public AuthFlowException(string? message, Exception? innerException)
+    : base(message, innerException) { }
+
+  public AuthFlowException(string? message)
+    : base(message) { }
+
+  public AuthFlowException() { }
+}
+
 public class SpeckleAccountManagerException : SpeckleException
 {
   public SpeckleAccountManagerException(string message)
@@ -10,14 +21,3 @@ public class SpeckleAccountManagerException : SpeckleException
 
   public SpeckleAccountManagerException() { }
 }
-
-public class SpeckleAccountFlowLockedException : SpeckleAccountManagerException
-{
-  public SpeckleAccountFlowLockedException(string message)
-    : base(message) { }
-
-  public SpeckleAccountFlowLockedException() { }
-
-  public SpeckleAccountFlowLockedException(string message, Exception? innerException)
-    : base(message, innerException) { }
-}

src/Speckle.Sdk/Credentials/Responses.cs

@@ -6,16 +6,19 @@ namespace Speckle.Sdk.Credentials;
 internal sealed class ActiveUserServerInfoResponse
 {
   [property: JsonProperty(Required = Required.AllowNull)]
-  public UserInfo? activeUser { get; init; }
+  public required UserInfo? activeUser { get; init; }
 
   [property: JsonProperty(Required = Required.Always)]
-  public ServerInfo serverInfo { get; init; }
+  public required ServerInfo serverInfo { get; init; }
 }
 
-internal sealed class TokenExchangeResponse
+public sealed class TokenExchangeResponse
 {
-  public string token { get; init; }
-  public string refreshToken { get; init; }
+  [JsonRequired]
+  public required string token { get; init; }
+
+  [JsonRequired]
+  public required string refreshToken { get; init; }
 }
 
 public sealed class UserInfo

src/Speckle.Sdk/Helpers/BlobApiHelpers.cs

@@ -0,0 +1,29 @@
+using System.Net.Http.Headers;
+
+namespace Speckle.Sdk.Helpers;
+
+public static class BlobApiHelpers
+{
+  public static string ParseEtagHeader(HttpResponseHeaders headers)
+  {
+    if (!headers.TryGetValues("ETag", out var etagValues))
+    {
+      throw new ArgumentException(
+        "Response does not have an ETag attached to it, cannot use this as an upload",
+        nameof(headers)
+      );
+    }
+
+    var etagValuesArray = etagValues.ToArray();
+
+    if (etagValuesArray.Length != 1)
+    {
+      throw new ArgumentException(
+        $"Expected Etag header to have a single value but got {etagValuesArray.Length}",
+        nameof(headers)
+      );
+    }
+
+    return etagValuesArray[0];
+  }
+}

src/Speckle.Sdk/Helpers/DisposableFile.cs

@@ -0,0 +1,34 @@
+using Microsoft.Extensions.Logging;
+
+namespace Speckle.Sdk.Helpers;
+
+/// <summary>
+/// <see cref="IDisposable"/> wrapper around the downloaded file to try and delete the file on Dispose
+/// </summary>
+/// <remarks>
+/// We're using a similar pattern in the Rhino File Importer codebase (see <c>ImportJobFile</c>)
+/// </remarks>
+/// <param name="logger"></param>
+/// <param name="file"></param>
+public sealed class DisposableFile(FileInfo file, ILogger logger, bool deleteOnDispose = true) : IDisposable
+{
+  public FileInfo FileInfo => file;
+
+  public void Dispose()
+  {
+    if (!deleteOnDispose)
+    {
+      return;
+    }
+
+    try
+    {
+      file.Delete();
+      logger.LogInformation("Cleaned up {File}", file);
+    }
+    catch (Exception ex) when (ex is IOException or UnauthorizedAccessException)
+    {
+      logger.LogWarning(ex, "Failed to clean up {File}", file);
+    }
+  }
+}

src/Speckle.Sdk/Helpers/StopwatchPollyfills.cs

@@ -0,0 +1,21 @@
+using System.Diagnostics;
+
+namespace Speckle.Sdk.Helpers;
+
+public static class StopwatchPolyfills
+{
+#if !NET7_0_OR_GREATER
+  private static readonly double s_tickFrequency = (double)TimeSpan.TicksPerSecond / Stopwatch.Frequency;
+#endif
+
+  public static TimeSpan GetElapsedTime(long startingTimestamp)
+  {
+#if NET7_0_OR_GREATER
+    return Stopwatch.GetElapsedTime(startingTimestamp);
+#else
+
+    long elapsedTicks = Stopwatch.GetTimestamp() - startingTimestamp;
+    return new TimeSpan((long)(elapsedTicks * s_tickFrequency));
+#endif
+  }
+}

src/Speckle.Sdk/Logging/NullActivityFactory.cs

@@ -1,8 +1,12 @@
-namespace Speckle.Sdk.Logging;
+using Speckle.Connectors.Logging;
+
+namespace Speckle.Sdk.Logging;
 
 public sealed class NullActivityFactory : ISdkActivityFactory
 {
   public void Dispose() { }
 
-  public ISdkActivity? Start(string? name = default, string source = "") => null;
+  public ISdkActivity? Start(string? name, SdkActivityKind kind, string source) => null;
+
+  public ISdkActivity? StartRemote(string traceContext, SdkActivityKind kind, string? name, string source) => null;
 }

src/Speckle.Sdk/Models/Attributes.cs

@@ -13,7 +13,9 @@ public sealed class DetachPropertyAttribute : Attribute
   /// <para>If set to true the default serialiser will persist it separately, and add a reference to the property's value in the original object.</para>
   /// <para>Only applies to properties of types derived from the Base class.</para>
   /// </summary>
-  /// <param name="detachable">Whether to detach the property or not.</param>
+  public DetachPropertyAttribute() { }
+
+  [Obsolete("detachable = false is no longer supported")]
   public DetachPropertyAttribute(bool detachable = true)
   {
     Detachable = detachable;

src/Speckle.Sdk/Models/DynamicBaseMemberType.cs

@@ -7,12 +7,12 @@ namespace Speckle.Sdk.Models;
 public enum DynamicBaseMemberType
 {
   /// <summary>
-  /// The typed members of the DynamicBase object
+  /// The typed members of the <see cref="DynamicBase"/> object
   /// </summary>
   Instance = 1,
 
   /// <summary>
-  /// The dynamically added members of the DynamicBase object
+  /// The dynamically added members of the <see cref="DynamicBase"/> object
   /// </summary>
   Dynamic = 2,
 
@@ -22,8 +22,9 @@ public enum DynamicBaseMemberType
   Obsolete = 4,
 
   /// <summary>
-  /// The typed methods flagged with TODO:
+  /// Old feature supported in v2 for grasshopper
   /// </summary>
+  [Obsolete("Feature no longer supported")]
   SchemaComputed = 16,
 
   /// <summary>

src/Speckle.Sdk/Pipelines/Progress/AggregateProgress.cs

@@ -0,0 +1,12 @@
+namespace Speckle.Sdk.Pipelines.Progress;
+
+public sealed class AggregateProgress<T>(params IProgress<T>[] progresses) : IProgress<T>
+{
+  public void Report(T value)
+  {
+    foreach (var progress in progresses)
+    {
+      progress.Report(value);
+    }
+  }
+}

src/Speckle.Sdk/Pipelines/Progress/IngestionProgressManager.cs

@@ -0,0 +1,89 @@
+using System.Diagnostics;
+using Microsoft.Extensions.Logging;
+using Speckle.InterfaceGenerator;
+using Speckle.Sdk.Api;
+using Speckle.Sdk.Api.GraphQL.Inputs;
+using Speckle.Sdk.Api.GraphQL.Models;
+using Speckle.Sdk.Helpers;
+
+namespace Speckle.Sdk.Pipelines.Progress;
+
+public partial interface IIngestionProgressManager : IProgress<CardProgress>;
+
+/// <summary>
+/// An <see langword="IProgress{IngestionProgressEventArgs}"/> implementation for the entire client side Ingestion progress update reporting
+/// Will throttles ingestion progress messages and reports their progress
+/// </summary>
+/// <remarks>
+/// Normally we would pick quite a coarse updateInterval to try and spamming the server (1-5s)
+/// </remarks>
+[GenerateAutoInterface]
+public sealed class IngestionProgressManager(
+  ILogger<IngestionProgressManager> logger,
+  IClient speckleClient,
+  ModelIngestion ingestion,
+  TimeSpan updateInterval,
+  CancellationToken cancellationToken
+) : IIngestionProgressManager
+{
+  public Task? LastUpdate { get; private set; }
+
+  private long _lastUpdatedAt;
+  private readonly object _lock = new();
+
+  [AutoInterfaceIgnore]
+  public void Report(CardProgress value)
+  {
+    cancellationToken.ThrowIfCancellationRequested();
+
+    string trimmedMessage;
+    lock (_lock)
+    {
+      if (ShouldIgnoreProgressUpdate())
+      {
+        return;
+      }
+
+      _lastUpdatedAt = Stopwatch.GetTimestamp();
+
+      trimmedMessage = value.Status.TrimEnd('.');
+
+      LastUpdate = speckleClient
+        .Ingestion.UpdateProgress(
+          new ModelIngestionUpdateInput(ingestion.id, ingestion.projectId, trimmedMessage, value.Progress),
+          cancellationToken
+        )
+        .ContinueWith(
+          Continuation,
+          CancellationToken.None,
+          TaskContinuationOptions.ExecuteSynchronously,
+          TaskScheduler.Default
+        );
+    }
+
+    logger.LogInformation("Progress update {Message} {Progress}", trimmedMessage, value.Progress);
+  }
+
+  /// <returns><see langword="true"/> if the update should be ignored, otherwise <see langword="false"/></returns>
+  private bool ShouldIgnoreProgressUpdate()
+  {
+    if (LastUpdate is not null && !LastUpdate.IsCompleted)
+    {
+      return true;
+    }
+
+    TimeSpan msSinceLastUpdate = StopwatchPolyfills.GetElapsedTime(_lastUpdatedAt);
+    return msSinceLastUpdate < updateInterval;
+  }
+
+  private void Continuation(Task updateTask)
+  {
+    // The progress report failed... could be many reasons.
+    // For now, we're not letting this fail the Ingestion in any way
+    // we'll log but otherwise let it slide while leaving no unobserved task exceptions
+    if (updateTask.IsFaulted)
+    {
+      logger.LogWarning(updateTask.Exception, "A progress update failed unexpectedly");
+    }
+  }
+}

src/Speckle.Sdk/Pipelines/Progress/IngestionProgressManagerFactory.cs

@@ -0,0 +1,21 @@
+using Microsoft.Extensions.Logging;
+using Speckle.InterfaceGenerator;
+using Speckle.Sdk.Api;
+using Speckle.Sdk.Api.GraphQL.Models;
+
+namespace Speckle.Sdk.Pipelines.Progress;
+
+[GenerateAutoInterface]
+public sealed class IngestionProgressManagerFactory(ILogger<IngestionProgressManager> logger)
+  : IIngestionProgressManagerFactory
+{
+  public IIngestionProgressManager CreateInstance(
+    IClient speckleClient,
+    ModelIngestion ingestion,
+    TimeSpan updateInterval,
+    CancellationToken cancellationToken
+  )
+  {
+    return new IngestionProgressManager(logger, speckleClient, ingestion, updateInterval, cancellationToken);
+  }
+}

src/Speckle.Sdk/Pipelines/Progress/ProgressArgs.cs

@@ -0,0 +1,6 @@
+namespace Speckle.Sdk.Pipelines.Progress;
+
+//TODO: rename PipelineProgressArgs
+public readonly record struct CardProgress(string Status, double? Progress);
+
+public readonly record struct StreamProgressArgs(long BytesStreamed, long ExpectedTotalBytes);

src/Speckle.Sdk/Pipelines/Progress/ProgressStream.cs

@@ -0,0 +1,103 @@
+using System.Diagnostics.CodeAnalysis;
+
+namespace Speckle.Sdk.Pipelines.Progress;
+
+/// <summary>
+/// Wraps <paramref name="innerStream"/> to report streaming progress as bytes are read/written.
+/// </summary>
+public sealed class ProgressStream(Stream innerStream, IProgress<StreamProgressArgs>? progress = null) : Stream
+{
+  private long _bytesStreamed;
+
+  public override bool CanRead => innerStream.CanRead;
+  public override bool CanSeek => innerStream.CanSeek;
+  public override bool CanWrite => innerStream.CanWrite;
+  public override long Length => innerStream.Length;
+
+  public override long Position
+  {
+    get => innerStream.Position;
+    set => innerStream.Position = value;
+  }
+
+  public override int Read(byte[] buffer, int offset, int count)
+  {
+    int bytesRead = innerStream.Read(buffer, offset, count);
+    ReportProgress(bytesRead);
+    return bytesRead;
+  }
+
+  [SuppressMessage(
+    "Performance",
+    "CA1835:Prefer the \'Memory\'-based overloads for \'ReadAsync\' and \'WriteAsync\'",
+    Justification = "Analyser warning forwarded to caller"
+  )]
+  public override async Task<int> ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
+  {
+    int bytesRead = await innerStream.ReadAsync(buffer, offset, count, cancellationToken).ConfigureAwait(false);
+    ReportProgress(bytesRead);
+    return bytesRead;
+  }
+
+#if NET8_0_OR_GREATER
+  public override async ValueTask<int> ReadAsync(Memory<byte> buffer, CancellationToken cancellationToken = default)
+  {
+    int bytesRead = await innerStream.ReadAsync(buffer, cancellationToken).ConfigureAwait(false);
+    ReportProgress(bytesRead);
+    return bytesRead;
+  }
+#endif
+
+  private void ReportProgress(int newBytesProcessed)
+  {
+    _bytesStreamed += newBytesProcessed;
+    progress?.Report(new(_bytesStreamed, Length));
+  }
+
+  public override void Flush() => innerStream.Flush();
+
+  public override Task FlushAsync(CancellationToken cancellationToken) => innerStream.FlushAsync(cancellationToken);
+
+  public override long Seek(long offset, SeekOrigin origin) => innerStream.Seek(offset, origin);
+
+  public override void SetLength(long value) => throw new NotSupportedException(); //intentionally not supporting, as changing length of stream mid-flight will fuck up progress
+
+  public override void Write(byte[] buffer, int offset, int count)
+  {
+    innerStream.Write(buffer, offset, count);
+    ReportProgress(count);
+  }
+
+  [SuppressMessage(
+    "Performance",
+    "CA1835:Prefer the \'Memory\'-based overloads for \'ReadAsync\' and \'WriteAsync\'",
+    Justification = "Analyser warning forwarded to caller"
+  )]
+  public override async Task WriteAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
+  {
+    await innerStream.WriteAsync(buffer, offset, count, cancellationToken).ConfigureAwait(false);
+    ReportProgress(count);
+  }
+
+#if NET6_0_OR_GREATER
+  public override async ValueTask WriteAsync(ReadOnlyMemory<byte> buffer, CancellationToken cancellationToken = default)
+  {
+    await innerStream.WriteAsync(buffer, cancellationToken).ConfigureAwait(false);
+    ReportProgress(buffer.Length);
+  }
+#endif
+
+  protected override void Dispose(bool disposing)
+  {
+    innerStream.Dispose();
+    base.Dispose(disposing);
+  }
+
+#if NET6_0_OR_GREATER
+  public override async ValueTask DisposeAsync()
+  {
+    await innerStream.DisposeAsync().ConfigureAwait(false);
+    await base.DisposeAsync().ConfigureAwait(false);
+  }
+#endif
+}

src/Speckle.Sdk/Pipelines/Progress/RenderedStreamProgress.cs

@@ -0,0 +1,40 @@
+namespace Speckle.Sdk.Pipelines.Progress;
+
+/// <summary>
+/// Renders "low level" data stream updates
+/// into "high level" <see cref="CardProgress"/> that is expected by Ingestion progress and DUI3
+/// </summary>
+/// <param name="progress"></param>
+public sealed class RenderedStreamProgress(IProgress<CardProgress> progress) : IProgress<StreamProgressArgs>
+{
+  public void Report(StreamProgressArgs value)
+  {
+    var (suffix, scaleFactor) = GetFileSizeRendering(value.ExpectedTotalBytes);
+    progress.Report(
+      new(
+        $"Uploading data... ({value.BytesStreamed * scaleFactor:F1}/{value.ExpectedTotalBytes * scaleFactor:F1} {suffix})",
+        (double)value.BytesStreamed / value.ExpectedTotalBytes
+      )
+    );
+  }
+
+  private static readonly string[] s_suffixes = ["B", "KB", "MB", "GB", "TB", "PB"];
+
+  internal static (string suffix, double scaleFactor) GetFileSizeRendering(long value)
+  {
+    if (value <= 0)
+    {
+      return (s_suffixes[0], 1d);
+    }
+
+    for (int i = 0; i < s_suffixes.Length; i++)
+    {
+      if (value <= Math.Pow(1024, i + 1))
+      {
+        return (s_suffixes[i], 1 / Math.Pow(1024, i));
+      }
+    }
+
+    throw new ArgumentOutOfRangeException(nameof(value), "Value is too large to convert to a file size");
+  }
+}

src/Speckle.Sdk/Pipelines/Send/DiskStore.cs

@@ -0,0 +1,96 @@
+using System.IO.Compression;
+using System.Text;
+using Microsoft.Extensions.Logging;
+using Speckle.InterfaceGenerator;
+using Speckle.Sdk.Dependencies;
+using Speckle.Sdk.Helpers;
+using Speckle.Sdk.Logging;
+
+namespace Speckle.Sdk.Pipelines.Send;
+
+[GenerateAutoInterface]
+public sealed class DiskStoreFactory(ILogger<DiskStore> logger, ISdkActivityFactory activityFactory) : IDiskStoreFactory
+{
+  public DiskStore CreateInstance(CancellationToken cancellationToken) =>
+    new(logger, activityFactory, cancellationToken);
+}
+
+public sealed class DiskStore
+{
+  private readonly RepackedChannel<UploadItem> _channel;
+  private readonly Task<DisposableFile> _writeToDiskTask;
+  private readonly ILogger<DiskStore> _logger;
+  private readonly ISdkActivityFactory _activityFactory;
+  private readonly CancellationToken _cancellationToken;
+
+  internal DiskStore(
+    ILogger<DiskStore> logger,
+    ISdkActivityFactory activityFactory,
+    CancellationToken cancellationToken
+  )
+  {
+    _logger = logger;
+    _activityFactory = activityFactory;
+    _cancellationToken = cancellationToken;
+
+    _channel = new RepackedChannel<UploadItem>(1000, true, false);
+    _writeToDiskTask = Task.Run(WriteFile, cancellationToken);
+  }
+
+  public async Task PushAsync(UploadItem item) =>
+    await _channel.WriteAsync(item, _cancellationToken).ConfigureAwait(false);
+
+  public async Task<DisposableFile> CompleteAsync()
+  {
+    using var a = _activityFactory.Start("Waiting for DiskStore to complete");
+    _channel.CompleteWriter();
+    return await _writeToDiskTask.ConfigureAwait(false);
+  }
+
+  private readonly byte[] _newLineChar = [(byte)'\n'];
+  private readonly byte[] _tabLineChar = [(byte)'\t'];
+
+  /// <summary>
+  /// Reads from the Channel and streams the <see cref="UploadItem"/>s to a temporary file on disk.
+  /// Will keep reading until <see cref="CompleteAsync"/> is called.
+  /// </summary>
+  /// <returns>the file that was written</returns>
+  private async Task<DisposableFile> WriteFile()
+  {
+    string tempFilePath = Path.GetTempFileName();
+    var tempFile = new DisposableFile(new FileInfo(tempFilePath), _logger);
+    _logger.LogInformation("Writing temp file to {TempFilePath}", tempFilePath);
+
+    try
+    {
+      using var fileStream = new FileStream(tempFilePath, FileMode.Create, FileAccess.Write, FileShare.None);
+      using var gzip = new GZipStream(fileStream, CompressionLevel.Optimal);
+
+      await foreach (var item in _channel.ReadAllAsync(_cancellationToken).ConfigureAwait(false))
+      {
+        await gzip.WriteAsync(Encoding.UTF8.GetBytes(item.Id), _cancellationToken).ConfigureAwait(false);
+        await gzip.WriteAsync(_tabLineChar, _cancellationToken).ConfigureAwait(false);
+        await gzip.WriteAsync(Encoding.UTF8.GetBytes(item.SpeckleType), _cancellationToken).ConfigureAwait(false);
+        await gzip.WriteAsync(_tabLineChar, _cancellationToken).ConfigureAwait(false);
+        await gzip.WriteAsync(item.Json.WrittenMemory, _cancellationToken).ConfigureAwait(false);
+        await gzip.WriteAsync(_newLineChar, _cancellationToken).ConfigureAwait(false);
+
+        item.Dispose();
+      }
+
+#if NET8_0_OR_GREATER
+      await gzip.FlushAsync(_cancellationToken).ConfigureAwait(false);
+#else
+      await gzip.FlushAsync().ConfigureAwait(false);
+#endif
+      tempFile.FileInfo.Refresh();
+
+      return tempFile;
+    }
+    catch
+    {
+      tempFile.Dispose();
+      throw;
+    }
+  }
+}

src/Speckle.Sdk/Pipelines/Send/SendPipeline.cs

@@ -0,0 +1,67 @@
+using Speckle.InterfaceGenerator;
+using Speckle.Sdk.Credentials;
+using Speckle.Sdk.Helpers;
+using Speckle.Sdk.Models;
+using Speckle.Sdk.Pipelines.Progress;
+
+namespace Speckle.Sdk.Pipelines.Send;
+
+[GenerateAutoInterface]
+public sealed class SendPipelineFactory(IUploaderFactory uploaderFactory, IDiskStoreFactory diskStoreFactory)
+  : ISendPipelineFactory
+{
+  public SendPipeline CreateInstance(
+    string projectId,
+    string ingestionId,
+    Account account,
+    IProgress<StreamProgressArgs> uploadProgress,
+    CancellationToken cancellationToken
+  )
+  {
+    var uploader = uploaderFactory.CreateInstance(projectId, ingestionId, account, uploadProgress, cancellationToken);
+    var diskStore = diskStoreFactory.CreateInstance(cancellationToken);
+    return new SendPipeline(uploader, diskStore);
+  }
+}
+
+public sealed class SendPipeline : IDisposable
+{
+  private readonly Serializer _serializer = new();
+  private readonly Uploader _uploader;
+  private readonly DiskStore _diskStore;
+
+  internal SendPipeline(Uploader uploader, DiskStore diskStore)
+  {
+    _uploader = uploader;
+    _diskStore = diskStore;
+  }
+
+  public async Task<ObjectReference> Process(Base @base)
+  {
+    var results = _serializer.Serialize(@base).ToArray();
+    foreach (var item in results.Reverse())
+    {
+      // we're not doing fire and forget here so that we get the backpressure from the uploader
+      await _diskStore.PushAsync(item).ConfigureAwait(false);
+    }
+
+    return results.First().Reference;
+  }
+
+  public async Task WaitForUpload()
+  {
+    //await _diskStore.PushAsync(_lastItem).ConfigureAwait(false);
+    using DisposableFile tempFile = await _diskStore.CompleteAsync().ConfigureAwait(false);
+
+    using Stream fileStreamUpload = new FileStream(
+      tempFile.FileInfo.FullName,
+      FileMode.Open,
+      FileAccess.Read,
+      FileShare.Read
+    );
+
+    await _uploader.Send(fileStreamUpload).ConfigureAwait(false);
+  }
+
+  public void Dispose() => _uploader.Dispose();
+}

src/Speckle.Sdk/Pipelines/Send/Serializer.cs

@@ -0,0 +1,354 @@
+using System.Collections;
+using System.Diagnostics.CodeAnalysis;
+using System.Drawing;
+using System.Text.Json;
+using Speckle.Sdk.Models;
+using Speckle.Sdk.Serialisation;
+using Matrix4x4 = Speckle.DoubleNumerics.Matrix4x4;
+
+namespace Speckle.Sdk.Pipelines.Send;
+
+/// <summary>
+/// Another serializer, cleaner and meaner. Provides methods for serializing Speckle objects into a format suitable for upload or storage.
+/// This class handles the conversion of <see cref="Speckle.Sdk.Models.Base"/> and its derivatives
+/// into serialized JSON structures along with associated metadata, closures, and references.
+/// <para>Any reference objects coming through are being "passed through" serialized - they do not get double encoded.</para>
+/// </summary>
+internal sealed class Serializer
+{
+  private readonly record struct PropertyInfo(string Name, object? Value, bool IsDetachable);
+
+  public IEnumerable<UploadItem> Serialize(Base root)
+  {
+    // Special case: if root is already an ObjectReference, serialize it verbatim
+    if (root is ObjectReference existingRef)
+    {
+      var uploadItem = ReferenceToUploadItem(existingRef);
+      yield return uploadItem;
+      yield break;
+    }
+
+    var detachedObjects = new List<(Id, EfficientJson, Dictionary<string, int>, Base, string)>();
+    var rootClosures = new Dictionary<string, int>();
+
+    var (rootId, rootJson) = SerializeBase(root, false, rootClosures, detachedObjects);
+
+    var rootReference = new ObjectReference
+    {
+      referencedId = rootId.Value,
+      applicationId = root.applicationId,
+      closure = rootClosures.Count > 0 ? rootClosures : null,
+    };
+
+    yield return new UploadItem(rootId.Value, rootJson, root.speckle_type, rootReference);
+
+    foreach (var (id, json, closures, baseObj, speckleType) in detachedObjects)
+    {
+      var reference = new ObjectReference
+      {
+        referencedId = id.Value,
+        applicationId = baseObj.applicationId,
+        closure = closures.Count > 0 ? closures : null,
+      };
+
+      yield return new UploadItem(id.Value, json, speckleType, reference);
+    }
+  }
+
+  private IEnumerable<PropertyInfo> ExtractProperties(Base baseObj)
+  {
+    var typedProperties = baseObj.GetInstanceMembers();
+    foreach (var prop in typedProperties)
+    {
+      if (prop.Name == "id" || prop.Name.StartsWith("__"))
+      {
+        continue;
+      }
+
+      if (prop.IsDefined(typeof(Speckle.Newtonsoft.Json.JsonIgnoreAttribute), false))
+      {
+        continue;
+      }
+
+      var value = prop.GetValue(baseObj);
+      var isDetachable = prop.IsDefined(typeof(DetachPropertyAttribute), true);
+
+      yield return new PropertyInfo(prop.Name, value, isDetachable);
+    }
+
+    foreach (var propName in baseObj.DynamicPropertyKeys)
+    {
+      if (propName.StartsWith("__"))
+      {
+        continue;
+      }
+
+      var value = baseObj[propName];
+
+#pragma warning disable CA1866
+      var isDetachable = propName.StartsWith("@");
+#pragma warning restore CA1866
+
+      yield return new PropertyInfo(propName, value, isDetachable);
+    }
+  }
+
+  private (Id, EfficientJson) SerializeBase(
+    Base baseObj,
+    bool forceDetach,
+    Dictionary<string, int> closures,
+    List<(Id, EfficientJson, Dictionary<string, int>, Base, string)> detachedObjects
+  )
+  {
+    var childClosures = new Dictionary<string, int>();
+
+    var efficientJson = new EfficientJson();
+    using var jsonWriter = new Utf8JsonWriter(efficientJson.Buffer);
+
+    jsonWriter.WriteStartObject();
+
+    foreach (var prop in ExtractProperties(baseObj))
+    {
+      jsonWriter.WritePropertyName(prop.Name);
+      SerializeValue(prop.Value, jsonWriter, prop.IsDetachable, childClosures, detachedObjects);
+    }
+
+    jsonWriter.Flush();
+    var span = efficientJson.WrittenSpan;
+    string id = IdGenerator.ComputeId(span);
+
+    jsonWriter.WriteString("id", id);
+
+    baseObj.id = id;
+
+    if ((forceDetach || childClosures.Count > 0) && childClosures.Count > 0)
+    {
+      jsonWriter.WritePropertyName("__closure");
+      jsonWriter.WriteStartObject();
+      foreach (var kvp in childClosures)
+      {
+        jsonWriter.WriteNumber(kvp.Key, kvp.Value);
+      }
+      jsonWriter.WriteEndObject();
+
+      foreach (var kvp in childClosures)
+      {
+        closures[kvp.Key] = closures.TryGetValue(kvp.Key, out var existing) ? existing + kvp.Value : kvp.Value;
+      }
+    }
+
+    jsonWriter.WriteEndObject();
+    jsonWriter.Flush();
+    return (new(id), efficientJson);
+  }
+
+  private void SerializeValue(
+    object? value,
+    Utf8JsonWriter writer,
+    bool isDetachable,
+    Dictionary<string, int> closures,
+    List<(Id, EfficientJson, Dictionary<string, int>, Base, string)> detachedObjects
+  )
+  {
+    switch (value)
+    {
+      case null:
+        writer.WriteNullValue();
+        return;
+      case string v:
+        writer.WriteStringValue(v);
+        return;
+      case short i:
+        writer.WriteNumberValue(i);
+        return;
+      case ushort i:
+        writer.WriteNumberValue(i);
+        return;
+      case int i:
+        writer.WriteNumberValue(i);
+        return;
+      case uint i:
+        writer.WriteNumberValue(i);
+        return;
+      case long i:
+        writer.WriteNumberValue(i);
+        return;
+      case ulong i:
+        writer.WriteNumberValue(i);
+        return;
+      case bool b:
+        writer.WriteBooleanValue(b);
+        return;
+      case float f:
+        writer.WriteNumberValue(f);
+        return;
+      case double f:
+        writer.WriteNumberValue(f);
+        return;
+      case decimal d:
+        writer.WriteNumberValue(d);
+        return;
+      case Enum:
+        writer.WriteNumberValue((int)value);
+        return;
+      case Color c:
+        writer.WriteNumberValue(c.ToArgb());
+        return;
+      case Matrix4x4 md:
+        writer.WriteStartArray();
+        writer.WriteNumberValue(md.M11);
+        writer.WriteNumberValue(md.M12);
+        writer.WriteNumberValue(md.M13);
+        writer.WriteNumberValue(md.M14);
+        writer.WriteNumberValue(md.M21);
+        writer.WriteNumberValue(md.M22);
+        writer.WriteNumberValue(md.M23);
+        writer.WriteNumberValue(md.M24);
+        writer.WriteNumberValue(md.M31);
+        writer.WriteNumberValue(md.M32);
+        writer.WriteNumberValue(md.M33);
+        writer.WriteNumberValue(md.M34);
+        writer.WriteNumberValue(md.M41);
+        writer.WriteNumberValue(md.M42);
+        writer.WriteNumberValue(md.M43);
+        writer.WriteNumberValue(md.M44);
+        writer.WriteEndArray();
+        return;
+      // Handle ObjectReference before Base (since ObjectReference extends Base)
+      // This prevents double-serialization and properly propagates closures
+      case ObjectReference objRef:
+      {
+        writer.WriteStartObject();
+        writer.WriteString("speckle_type", "reference");
+        writer.WriteString("referencedId", objRef.referencedId);
+        writer.WriteEndObject();
+
+        // Propagate closure: add the referenced ID
+        closures[objRef.referencedId] = closures.TryGetValue(objRef.referencedId, out var existing) ? existing + 1 : 1;
+
+        // Propagate nested closures from the ObjectReference.closure dictionary
+        if (objRef.closure != null)
+        {
+          foreach (var kvp in objRef.closure)
+          {
+            closures[kvp.Key] = closures.TryGetValue(kvp.Key, out var existingDepth)
+              ? existingDepth + kvp.Value
+              : kvp.Value;
+          }
+        }
+
+        return;
+      }
+      case Base baseObj:
+      {
+        if (isDetachable)
+        {
+          var childClosures = new Dictionary<string, int>();
+          var (childId, childJson) = SerializeBase(baseObj, true, childClosures, detachedObjects);
+
+          detachedObjects.Add((childId, childJson, childClosures, baseObj, baseObj.speckle_type));
+
+          writer.WriteStartObject();
+          writer.WriteString("speckle_type", "reference");
+          writer.WriteString("referencedId", childId.Value);
+          writer.WriteEndObject();
+
+          closures[childId.Value] = closures.TryGetValue(childId.Value, out var existing) ? existing + 1 : 1;
+
+          foreach (var kvp in childClosures)
+          {
+            closures[kvp.Key] = closures.TryGetValue(kvp.Key, out var existingDepth)
+              ? existingDepth + kvp.Value
+              : kvp.Value;
+          }
+        }
+        else
+        {
+          var inlineClosures = new Dictionary<string, int>();
+          var (_, inlineJson) = SerializeBase(baseObj, false, inlineClosures, detachedObjects);
+
+          writer.WriteRawValue(inlineJson.WrittenSpan);
+
+          foreach (var kvp in inlineClosures)
+          {
+            closures[kvp.Key] = closures.TryGetValue(kvp.Key, out var existingDepth)
+              ? existingDepth + kvp.Value
+              : kvp.Value;
+          }
+        }
+        return;
+      }
+      case IDictionary dict:
+      {
+        writer.WriteStartObject();
+        foreach (DictionaryEntry kvp in dict)
+        {
+          if (kvp.Key is not string key)
+          {
+            throw new ArgumentException("Dictionary keys must be strings", nameof(value));
+          }
+
+          writer.WritePropertyName(key);
+          SerializeValue(kvp.Value, writer, false, closures, detachedObjects);
+        }
+        writer.WriteEndObject();
+        return;
+      }
+      case ICollection collection:
+      {
+        writer.WriteStartArray();
+        foreach (var item in collection)
+        {
+          SerializeValue(item, writer, isDetachable, closures, detachedObjects);
+        }
+        writer.WriteEndArray();
+        return;
+      }
+      default:
+        // This case will handle primitives and `null`
+        // Will throw JsonWriterException if not supported
+        throw new ArgumentOutOfRangeException(nameof(value), $"Unsupported type {value.GetType()}");
+    }
+  }
+
+  [SuppressMessage(
+    "Reliability",
+    "CA2000:Dispose objects before losing scope",
+    Justification = "EfficientJson IDisposable is returned via UploadItem"
+  )]
+  private UploadItem ReferenceToUploadItem(ObjectReference existingRef)
+  {
+    var refJson = new EfficientJson();
+    using var jsonWriter = new Utf8JsonWriter(refJson.Buffer);
+
+    jsonWriter.WriteStartObject();
+    jsonWriter.WriteString("speckle_type", "reference");
+    jsonWriter.WriteString("referencedId", existingRef.referencedId);
+    jsonWriter.WritePropertyName("__closure");
+
+    if (existingRef.closure != null && existingRef.closure.Count > 0)
+    {
+      jsonWriter.WriteStartObject();
+      foreach (var kvp in existingRef.closure)
+      {
+        jsonWriter.WritePropertyName(kvp.Key);
+        jsonWriter.WriteNumberValue(kvp.Value);
+      }
+      jsonWriter.WriteEndObject();
+    }
+    else
+    {
+      jsonWriter.WriteNullValue();
+    }
+
+    jsonWriter.WriteEndObject();
+    jsonWriter.Flush();
+
+    return new UploadItem(
+      existingRef.referencedId,
+      refJson,
+      existingRef.speckle_type,
+      existingRef // Pass through the original ObjectReference
+    );
+  }
+}

src/Speckle.Sdk/Pipelines/Send/Uploader.cs

@@ -0,0 +1,159 @@
+using System.Net.Http.Headers;
+using System.Text;
+using Speckle.InterfaceGenerator;
+using Speckle.Newtonsoft.Json;
+using Speckle.Sdk.Credentials;
+using Speckle.Sdk.Helpers;
+using Speckle.Sdk.Logging;
+using Speckle.Sdk.Pipelines.Progress;
+
+namespace Speckle.Sdk.Pipelines.Send;
+
+[GenerateAutoInterface]
+public sealed class UploaderFactory(ISpeckleHttp httpClientFactory, ISdkActivityFactory activityFactory)
+  : IUploaderFactory
+{
+  public Uploader CreateInstance(
+    string projectId,
+    string ingestionId,
+    Account account,
+    IProgress<StreamProgressArgs> progress,
+    CancellationToken cancellationToken
+  ) => new(projectId, ingestionId, activityFactory, httpClientFactory, account, progress, cancellationToken);
+}
+
+public sealed class Uploader : IDisposable
+{
+  private readonly string _projectId;
+  private readonly string _ingestionId;
+  private readonly CancellationToken _cancellationToken;
+  private readonly HttpClient _speckleClient;
+  private readonly HttpClient _s3Client;
+  private readonly ISdkActivityFactory _activity;
+  private readonly IProgress<StreamProgressArgs> _progress;
+
+  internal Uploader(
+    string projectId,
+    string ingestionId,
+    ISdkActivityFactory activity,
+    ISpeckleHttp httpClientFactory,
+    Account speckleAccount,
+    IProgress<StreamProgressArgs> progress,
+    CancellationToken cancellationToken
+  )
+  {
+    _projectId = projectId;
+    _ingestionId = ingestionId;
+    _activity = activity;
+    _cancellationToken = cancellationToken;
+    _progress = progress;
+    _speckleClient = httpClientFactory.CreateHttpClient(authorizationToken: speckleAccount.token);
+    _speckleClient.BaseAddress = new(new(speckleAccount.serverInfo.url), "/api/v1/");
+
+    _s3Client = httpClientFactory.CreateHttpClient();
+  }
+
+  public async Task Send(Stream fileStream)
+  {
+    PresignedUploadResponse presignedUploadResponse = await GetPresignedUrl().ConfigureAwait(false);
+    var etag = await UploadToS3(fileStream, presignedUploadResponse).ConfigureAwait(false);
+
+    await TriggerProcessing(new() { Etag = etag }).ConfigureAwait(false);
+  }
+
+  private async Task<PresignedUploadResponse> GetPresignedUrl()
+  {
+    using var a = _activity.Start("Get Presigned Url");
+
+    try
+    {
+      var signUri = new Uri($"projects/{_projectId}/modelingestion/{_ingestionId}/uploads/sign", UriKind.Relative);
+
+      using var signResponse = await _speckleClient.PostAsync(signUri, null, _cancellationToken).ConfigureAwait(false);
+      signResponse.EnsureSuccessStatusCode();
+
+#if NET5_0_OR_GREATER
+      string signResponseString = await signResponse
+        .Content.ReadAsStringAsync(_cancellationToken)
+        .ConfigureAwait(false);
+#else
+      string signResponseString = await signResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
+#endif
+      PresignedUploadResponse presignedUpload =
+        JsonConvert.DeserializeObject<PresignedUploadResponse>(signResponseString)
+        ?? throw new InvalidOperationException("Failed to get presigned upload URL");
+      return presignedUpload;
+    }
+    catch (Exception ex)
+    {
+      a?.SetStatus(SdkActivityStatusCode.Error);
+      a?.RecordException(ex);
+      throw;
+    }
+  }
+
+  private async Task<string> UploadToS3(Stream fileStream, PresignedUploadResponse presignedUploadResponse)
+  {
+    using var a = _activity.Start("Uploading file to pre-signed url");
+    try
+    {
+      Stream progressStream = new ProgressStream(fileStream, _progress);
+
+      using var streamContent = new StreamContent(progressStream);
+      streamContent.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
+      streamContent.Headers.ContentLength = fileStream.Length;
+
+      using var uploadRequest = new HttpRequestMessage(HttpMethod.Put, presignedUploadResponse.Url);
+      foreach (var kvp in presignedUploadResponse.AdditionalRequestHeaders)
+      {
+        uploadRequest.Headers.Add(kvp.Key, kvp.Value);
+      }
+
+      uploadRequest.Content = streamContent;
+
+      using var uploadResponse = await _s3Client
+        .SendAsync(uploadRequest, HttpCompletionOption.ResponseHeadersRead, _cancellationToken)
+        .ConfigureAwait(false);
+
+      uploadResponse.EnsureSuccessStatusCode();
+
+      return BlobApiHelpers.ParseEtagHeader(uploadResponse.Headers);
+    }
+    catch (Exception ex)
+    {
+      a?.SetStatus(SdkActivityStatusCode.Error);
+      a?.RecordException(ex);
+      throw;
+    }
+  }
+
+  private async Task TriggerProcessing(TriggerUploadRequest request)
+  {
+    using var a = _activity.Start("Triggering Processing");
+    try
+    {
+      Uri processUri = new($"projects/{_projectId}/modelingestion/{_ingestionId}/uploads/process", UriKind.Relative);
+      string requestBody = JsonConvert.SerializeObject(request);
+      using var content = new StringContent(requestBody, Encoding.UTF8, "application/json");
+
+      using HttpResponseMessage processResponse = await _speckleClient
+        .PostAsync(processUri, content, _cancellationToken)
+        .ConfigureAwait(false);
+
+      string body = await processResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
+      processResponse.EnsureSuccessStatusCode();
+    }
+    catch (Exception ex)
+    {
+      a?.SetStatus(SdkActivityStatusCode.Error);
+      a?.RecordException(ex);
+      throw;
+    }
+  }
+
+  public void Dispose()
+  {
+    _speckleClient.Dispose();
+    _s3Client.Dispose();
+  }
+}

src/Speckle.Sdk/Pipelines/Send/UploaderDTOs.cs

@@ -0,0 +1,24 @@
+using Speckle.Newtonsoft.Json;
+using Speckle.Sdk.Models;
+using Speckle.Sdk.Serialisation;
+
+namespace Speckle.Sdk.Pipelines.Send;
+
+public sealed record UploadItem(string Id, EfficientJson Json, string SpeckleType, ObjectReference Reference)
+  : IDisposable
+{
+  public void Dispose() => Json.Dispose();
+}
+
+internal record PresignedUploadResponse
+{
+  public required Uri Url { get; init; }
+  public required string Key { get; init; }
+  public Dictionary<string, string> AdditionalRequestHeaders { get; init; } = new();
+}
+
+internal readonly struct TriggerUploadRequest
+{
+  [JsonProperty("etag")]
+  public required string Etag { get; init; }
+}

src/Speckle.Sdk/Serialisation/IdGenerator.cs

@@ -1,4 +1,5 @@
 using System.Diagnostics.Contracts;
+using System.Security.Cryptography;
 using Speckle.Sdk.Common;
 using Speckle.Sdk.Models;
 
@@ -16,4 +17,20 @@ public static class IdGenerator
 #endif
     return new Id(hash);
   }
+
+  [Pure]
+  public static string ComputeId(ReadOnlySpan<byte> input)
+  {
+    Span<byte> hash = stackalloc byte[SHA256.HashSizeInBytes];
+    SHA256.HashData(input, hash);
+
+    Span<char> output = stackalloc char[32];
+
+    for (int i = 0, j = 0; j < 32; i += sizeof(byte), j += sizeof(char))
+    {
+      hash[i].TryFormat(output[j..], out _, "x2");
+    }
+
+    return new string(output);
+  }
 }

src/Speckle.Sdk/Serialisation/SerializationResult.cs

@@ -1,4 +1,7 @@
-namespace Speckle.Sdk.Serialisation;
+using System.Buffers;
+using Speckle.Sdk.Dependencies;
+
+namespace Speckle.Sdk.Serialisation;
 
 public readonly record struct SerializationResult(Json Json, Id? Id);
 
@@ -14,6 +17,26 @@ public readonly record struct Json
   public string Value { get; }
 }
 
+public sealed class EfficientJson : IDisposable
+{
+  private readonly ArrayBufferWriter<byte> _value;
+
+  public EfficientJson()
+  {
+    _value = Pools.ArrayBufferWriter.Get();
+  }
+
+  internal IBufferWriter<byte> Buffer => _value;
+
+  public ReadOnlySpan<byte> WrittenSpan => _value.WrittenSpan;
+
+  public ReadOnlyMemory<byte> WrittenMemory => _value.WrittenMemory;
+
+  public int WrittenCount => _value.WrittenCount;
+
+  public void Dispose() => Pools.ArrayBufferWriter.Return(_value);
+}
+
 public readonly record struct Id
 {
   public Id(string id)

src/Speckle.Sdk/Serialisation/V2/Send/BaseItem.cs

@@ -2,7 +2,13 @@ using System.Text;
 
 namespace Speckle.Sdk.Serialisation.V2.Send;
 
-public sealed record BaseItem(Id Id, Json Json, bool NeedsStorage, Dictionary<Id, int>? Closures) : IHasByteSize
+public sealed record BaseItem(
+  Id Id,
+  Json Json,
+  bool NeedsStorage,
+  Dictionary<Id, int>? Closures,
+  bool? IsReference = false
+) : IHasByteSize
 {
   public int ByteSize { get; } = Encoding.UTF8.GetByteCount(Json.Value);
 

src/Speckle.Sdk/Serialisation/V2/Send/SerializeProcess.cs

@@ -113,16 +113,6 @@ public sealed class SerializeProcess(
         _processSource.Token
       );
       var findTotalObjectsTask = Task.CompletedTask;
-      if (!options.SkipFindTotalObjects)
-      {
-        ThrowIfFailed();
-        findTotalObjectsTask = Task.Factory.StartNew(
-          () => TraverseTotal(root),
-          _processSource.Token,
-          TaskCreationOptions.AttachedToParent | TaskCreationOptions.PreferFairness,
-          _highest
-        );
-      }
 
       await Traverse(root).ConfigureAwait(false);
       ThrowIfFailed();
@@ -133,6 +123,7 @@ public sealed class SerializeProcess(
       ThrowIfFailed();
       await WaitForSchedulerCompletion().ConfigureAwait(false);
       ThrowIfFailed();
+
       return new(root.id.NotNull(), baseSerializer.ObjectReferences.Freeze());
     }
     catch (OperationCanceledException)

src/Speckle.Sdk/ServiceRegistration.cs

@@ -8,6 +8,7 @@ using Speckle.Sdk.Dependencies;
 using Speckle.Sdk.Host;
 using Speckle.Sdk.Logging;
 using Speckle.Sdk.Models.GraphTraversal;
+using Speckle.Sdk.Pipelines.Progress;
 using Speckle.Sdk.Serialisation.V2;
 using Speckle.Sdk.Serialisation.V2.Receive;
 using Speckle.Sdk.Serialisation.V2.Send;
@@ -96,7 +97,8 @@ public static class ServiceRegistration
       typeof(DeserializeProcess),
       typeof(ObjectLoader),
       typeof(TraversalRule),
-      typeof(Client)
+      typeof(Client),
+      typeof(IngestionProgressManager)
     );
     serviceCollection.AddMatchingInterfacesAsTransient(typeof(GraphQLRetry).Assembly);
     return serviceCollection;

src/Speckle.Sdk/Speckle.Sdk.csproj

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup Label="Compiler Properties">
-    <TargetFrameworks>netstandard2.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net8.0</TargetFrameworks>
     <Configurations>Debug;Release;Local</Configurations>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
@@ -35,7 +35,6 @@
     <PackageReference Include="Microsoft.CSharp" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" />
     <PackageReference Include="Microsoft.Extensions.Logging" />
-    <PackageReference Include="Microsoft.Bcl.AsyncInterfaces" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\Speckle.Sdk.Dependencies\Speckle.Sdk.Dependencies.csproj" />

src/Speckle.Sdk/packages.lock.json

@@ -1,299 +1,6 @@
 {
   "version": 2,
   "dependencies": {
-    ".NETStandard,Version=v2.0": {
-      "GraphQL.Client": {
-        "type": "Direct",
-        "requested": "[6.0.0, )",
-        "resolved": "6.0.0",
-        "contentHash": "8yPNBbuVBpTptivyAlak4GZvbwbUcjeQTL4vN1HKHRuOykZ4r7l5fcLS6vpyPyLn0x8FsL31xbOIKyxbmR9rbA==",
-        "dependencies": {
-          "GraphQL.Client.Abstractions": "6.0.0",
-          "GraphQL.Client.Abstractions.Websocket": "6.0.0",
-          "System.Reactive": "5.0.0"
-        }
-      },
-      "Microsoft.Bcl.AsyncInterfaces": {
-        "type": "Direct",
-        "requested": "[5.0.0, )",
-        "resolved": "5.0.0",
-        "contentHash": "W8DPQjkMScOMTtJbPwmPyj9c3zYSFGawDW3jwlBOOsnY+EzZFLgNQ/UMkK35JmkNOVPdCyPr2Tw7Vv9N+KA3ZQ==",
-        "dependencies": {
-          "System.Threading.Tasks.Extensions": "4.5.4"
-        }
-      },
-      "Microsoft.CSharp": {
-        "type": "Direct",
-        "requested": "[4.7.0, )",
-        "resolved": "4.7.0",
-        "contentHash": "pTj+D3uJWyN3My70i2Hqo+OXixq3Os2D1nJ2x92FFo6sk8fYS1m1WLNTs0Dc1uPaViH0YvEEwvzddQ7y4rhXmA=="
-      },
-      "Microsoft.Data.Sqlite": {
-        "type": "Direct",
-        "requested": "[7.0.5, )",
-        "resolved": "7.0.5",
-        "contentHash": "KGxbPeWsQMnmQy43DSBxAFtHz3l2JX8EWBSGUCvT3CuZ8KsuzbkqMIJMDOxWtG8eZSoCDI04aiVQjWuuV8HmSw==",
-        "dependencies": {
-          "Microsoft.Data.Sqlite.Core": "7.0.5",
-          "SQLitePCLRaw.bundle_e_sqlite3": "2.1.4"
-        }
-      },
-      "Microsoft.Extensions.DependencyInjection.Abstractions": {
-        "type": "Direct",
-        "requested": "[2.2.0, )",
-        "resolved": "2.2.0",
-        "contentHash": "f9hstgjVmr6rmrfGSpfsVOl2irKAgr1QjrSi3FgnS7kulxband50f2brRLwySAQTADPZeTdow0mpSMcoAdadCw=="
-      },
-      "Microsoft.Extensions.Logging": {
-        "type": "Direct",
-        "requested": "[2.2.0, )",
-        "resolved": "2.2.0",
-        "contentHash": "Nxqhadc9FCmFHzU+fz3oc8sFlE6IadViYg8dfUdGzJZ2JUxnCsRghBhhOWdM4B2zSZqEc+0BjliBh/oNdRZuig==",
-        "dependencies": {
-          "Microsoft.Extensions.Configuration.Binder": "2.2.0",
-          "Microsoft.Extensions.DependencyInjection.Abstractions": "2.2.0",
-          "Microsoft.Extensions.Logging.Abstractions": "2.2.0",
-          "Microsoft.Extensions.Options": "2.2.0"
-        }
-      },
-      "Microsoft.SourceLink.GitHub": {
-        "type": "Direct",
-        "requested": "[8.0.0, )",
-        "resolved": "8.0.0",
-        "contentHash": "G5q7OqtwIyGTkeIOAc3u2ZuV/kicQaec5EaRnc0pIeSnh9LUjj+PYQrJYBURvDt7twGl2PKA7nSN0kz1Zw5bnQ==",
-        "dependencies": {
-          "Microsoft.Build.Tasks.Git": "8.0.0",
-          "Microsoft.SourceLink.Common": "8.0.0"
-        }
-      },
-      "NETStandard.Library": {
-        "type": "Direct",
-        "requested": "[2.0.3, )",
-        "resolved": "2.0.3",
-        "contentHash": "st47PosZSHrjECdjeIzZQbzivYBJFv6P2nv4cj2ypdI204DO+vZ7l5raGMiX4eXMJ53RfOIg+/s4DHVZ54Nu2A==",
-        "dependencies": {
-          "Microsoft.NETCore.Platforms": "1.1.0"
-        }
-      },
-      "PolySharp": {
-        "type": "Direct",
-        "requested": "[1.15.0, )",
-        "resolved": "1.15.0",
-        "contentHash": "FbU0El+EEjdpuIX4iDbeS7ki1uzpJPx8vbqOzEtqnl1GZeAGJfq+jCbxeJL2y0EPnUNk8dRnnqR2xnYXg9Tf+g=="
-      },
-      "Speckle.DoubleNumerics": {
-        "type": "Direct",
-        "requested": "[4.1.0, )",
-        "resolved": "4.1.0",
-        "contentHash": "20DtS+FsDRsOD9+AU3TwNFZ0qrKo5f6f7B5ZR9wStsIHHHC9k7DpjbCvuNtmnSjx54MD+TJC7wV2f5iyGVPj1A=="
-      },
-      "Speckle.InterfaceGenerator": {
-        "type": "Direct",
-        "requested": "[0.9.6, )",
-        "resolved": "0.9.6",
-        "contentHash": "HKH7tYrYYlCK1ct483hgxERAdVdMtl7gUKW9ijWXxA1UsYR4Z+TrRHYmzZ9qmpu1NnTycSrp005NYM78GDKV1w=="
-      },
-      "Speckle.Newtonsoft.Json": {
-        "type": "Direct",
-        "requested": "[13.0.2, )",
-        "resolved": "13.0.2",
-        "contentHash": "g1BejUZwax5PRfL6xHgLEK23sqHWOgOj9hE7RvfRRlN00AGt8GnPYt8HedSK7UB3HiRW8zCA9Pn0iiYxCK24BA=="
-      },
-      "GraphQL.Client.Abstractions": {
-        "type": "Transitive",
-        "resolved": "6.0.0",
-        "contentHash": "h7uzWFORHZ+CCjwr/ThAyXMr0DPpzEANDa4Uo54wqCQ+j7qUKwqYTgOrb1W40sqbvNaZm9v/X7It31SUw0maHA==",
-        "dependencies": {
-          "GraphQL.Primitives": "6.0.0"
-        }
-      },
-      "GraphQL.Client.Abstractions.Websocket": {
-        "type": "Transitive",
-        "resolved": "6.0.0",
-        "contentHash": "Nr9bPf8gIOvLuXpqEpqr9z9jslYFJOvd0feHth3/kPqeR3uMbjF5pjiwh4jxyMcxHdr8Pb6QiXkV3hsSyt0v7A==",
-        "dependencies": {
-          "GraphQL.Client.Abstractions": "6.0.0"
-        }
-      },
-      "GraphQL.Primitives": {
-        "type": "Transitive",
-        "resolved": "6.0.0",
-        "contentHash": "yg72rrYDapfsIUrul7aF6wwNnTJBOFvuA9VdDTQpPa8AlAriHbufeXYLBcodKjfUdkCnaiggX1U/nEP08Zb5GA=="
-      },
-      "Microsoft.Build.Tasks.Git": {
-        "type": "Transitive",
-        "resolved": "8.0.0",
-        "contentHash": "bZKfSIKJRXLTuSzLudMFte/8CempWjVamNUR5eHJizsy+iuOuO/k2gnh7W0dHJmYY0tBf+gUErfluCv5mySAOQ=="
-      },
-      "Microsoft.Data.Sqlite.Core": {
-        "type": "Transitive",
-        "resolved": "7.0.5",
-        "contentHash": "FTerRmQPqHrCrnoUzhBu+E+1DNGwyrAMLqHkAqOOOu5pGfyMOj8qQUBxI/gDtWtG11p49UxSfWmBzRNlwZqfUg==",
-        "dependencies": {
-          "SQLitePCLRaw.core": "2.1.4"
-        }
-      },
-      "Microsoft.Extensions.Configuration": {
-        "type": "Transitive",
-        "resolved": "2.2.0",
-        "contentHash": "nOP8R1mVb/6mZtm2qgAJXn/LFm/2kMjHDAg/QJLFG6CuWYJtaD3p1BwQhufBVvRzL9ceJ/xF0SQ0qsI2GkDQAA==",
-        "dependencies": {
-          "Microsoft.Extensions.Configuration.Abstractions": "2.2.0"
-        }
-      },
-      "Microsoft.Extensions.Configuration.Abstractions": {
-        "type": "Transitive",
-        "resolved": "2.2.0",
-        "contentHash": "65MrmXCziWaQFrI0UHkQbesrX5wTwf9XPjY5yFm/VkgJKFJ5gqvXRoXjIZcf2wLi5ZlwGz/oMYfyURVCWbM5iw==",
-        "dependencies": {
-          "Microsoft.Extensions.Primitives": "2.2.0"
-        }
-      },
-      "Microsoft.Extensions.Configuration.Binder": {
-        "type": "Transitive",
-        "resolved": "2.2.0",
-        "contentHash": "vJ9xvOZCnUAIHcGC3SU35r3HKmHTVIeHzo6u/qzlHAqD8m6xv92MLin4oJntTvkpKxVX3vI1GFFkIQtU3AdlsQ==",
-        "dependencies": {
-          "Microsoft.Extensions.Configuration": "2.2.0"
-        }
-      },
-      "Microsoft.Extensions.Logging.Abstractions": {
-        "type": "Transitive",
-        "resolved": "2.2.0",
-        "contentHash": "B2WqEox8o+4KUOpL7rZPyh6qYjik8tHi2tN8Z9jZkHzED8ElYgZa/h6K+xliB435SqUcWT290Fr2aa8BtZjn8A=="
-      },
-      "Microsoft.Extensions.Options": {
-        "type": "Transitive",
-        "resolved": "2.2.0",
-        "contentHash": "UpZLNLBpIZ0GTebShui7xXYh6DmBHjWM8NxGxZbdQh/bPZ5e6YswqI+bru6BnEL5eWiOdodsXtEz3FROcgi/qg==",
-        "dependencies": {
-          "Microsoft.Extensions.DependencyInjection.Abstractions": "2.2.0",
-          "Microsoft.Extensions.Primitives": "2.2.0",
-          "System.ComponentModel.Annotations": "4.5.0"
-        }
-      },
-      "Microsoft.Extensions.Primitives": {
-        "type": "Transitive",
-        "resolved": "2.2.0",
-        "contentHash": "azyQtqbm4fSaDzZHD/J+V6oWMFaf2tWP4WEGIYePLCMw3+b2RQdj9ybgbQyjCshcitQKQ4lEDOZjmSlTTrHxUg==",
-        "dependencies": {
-          "System.Memory": "4.5.1",
-          "System.Runtime.CompilerServices.Unsafe": "4.5.1"
-        }
-      },
-      "Microsoft.NETCore.Platforms": {
-        "type": "Transitive",
-        "resolved": "1.1.0",
-        "contentHash": "kz0PEW2lhqygehI/d6XsPCQzD7ff7gUJaVGPVETX611eadGsA3A877GdSlU0LRVMCTH/+P3o2iDTak+S08V2+A=="
-      },
-      "Microsoft.NETCore.Targets": {
-        "type": "Transitive",
-        "resolved": "1.1.0",
-        "contentHash": "aOZA3BWfz9RXjpzt0sRJJMjAscAUm3Hoa4UWAfceV9UTYxgwZ1lZt5nO2myFf+/jetYQo4uTP7zS8sJY67BBxg=="
-      },
-      "Microsoft.SourceLink.Common": {
-        "type": "Transitive",
-        "resolved": "8.0.0",
-        "contentHash": "dk9JPxTCIevS75HyEQ0E4OVAFhB2N+V9ShCXf8Q6FkUQZDkgLI12y679Nym1YqsiSysuQskT7Z+6nUf3yab6Vw=="
-      },
-      "SQLitePCLRaw.bundle_e_sqlite3": {
-        "type": "Transitive",
-        "resolved": "2.1.4",
-        "contentHash": "EWI1olKDjFEBMJu0+3wuxwziIAdWDVMYLhuZ3Qs84rrz+DHwD00RzWPZCa+bLnHCf3oJwuFZIRsHT5p236QXww==",
-        "dependencies": {
-          "SQLitePCLRaw.lib.e_sqlite3": "2.1.4",
-          "SQLitePCLRaw.provider.e_sqlite3": "2.1.4"
-        }
-      },
-      "SQLitePCLRaw.core": {
-        "type": "Transitive",
-        "resolved": "2.1.4",
-        "contentHash": "inBjvSHo9UDKneGNzfUfDjK08JzlcIhn1+SP5Y3m6cgXpCxXKCJDy6Mka7LpgSV+UZmKSnC8rTwB0SQ0xKu5pA==",
-        "dependencies": {
-          "System.Memory": "4.5.3"
-        }
-      },
-      "SQLitePCLRaw.lib.e_sqlite3": {
-        "type": "Transitive",
-        "resolved": "2.1.4",
-        "contentHash": "2C9Q9eX7CPLveJA0rIhf9RXAvu+7nWZu1A2MdG6SD/NOu26TakGgL1nsbc0JAspGijFOo3HoN79xrx8a368fBg=="
-      },
-      "SQLitePCLRaw.provider.e_sqlite3": {
-        "type": "Transitive",
-        "resolved": "2.1.4",
-        "contentHash": "CSlb5dUp1FMIkez9Iv5EXzpeq7rHryVNqwJMWnpq87j9zWZexaEMdisDktMsnnrzKM6ahNrsTkjqNodTBPBxtQ==",
-        "dependencies": {
-          "SQLitePCLRaw.core": "2.1.4"
-        }
-      },
-      "System.Buffers": {
-        "type": "Transitive",
-        "resolved": "4.4.0",
-        "contentHash": "AwarXzzoDwX6BgrhjoJsk6tUezZEozOT5Y9QKF94Gl4JK91I4PIIBkBco9068Y9/Dra8Dkbie99kXB8+1BaYKw=="
-      },
-      "System.ComponentModel.Annotations": {
-        "type": "Transitive",
-        "resolved": "4.5.0",
-        "contentHash": "UxYQ3FGUOtzJ7LfSdnYSFd7+oEv6M8NgUatatIN2HxNtDdlcvFAf+VIq4Of9cDMJEJC0aSRv/x898RYhB4Yppg=="
-      },
-      "System.Memory": {
-        "type": "Transitive",
-        "resolved": "4.5.3",
-        "contentHash": "3oDzvc/zzetpTKWMShs1AADwZjQ/36HnsufHRPcOjyRAAMLDlu2iD33MBI2opxnezcVUtXyqDXXjoFMOU9c7SA==",
-        "dependencies": {
-          "System.Buffers": "4.4.0",
-          "System.Numerics.Vectors": "4.4.0",
-          "System.Runtime.CompilerServices.Unsafe": "4.5.2"
-        }
-      },
-      "System.Numerics.Vectors": {
-        "type": "Transitive",
-        "resolved": "4.4.0",
-        "contentHash": "UiLzLW+Lw6HLed1Hcg+8jSRttrbuXv7DANVj0DkL9g6EnnzbL75EB7EWsw5uRbhxd/4YdG8li5XizGWepmG3PQ=="
-      },
-      "System.Reactive": {
-        "type": "Transitive",
-        "resolved": "5.0.0",
-        "contentHash": "erBZjkQHWL9jpasCE/0qKAryzVBJFxGHVBAvgRN1bzM0q2s1S4oYREEEL0Vb+1kA/6BKb5FjUZMp5VXmy+gzkQ==",
-        "dependencies": {
-          "System.Runtime.InteropServices.WindowsRuntime": "4.3.0",
-          "System.Threading.Tasks.Extensions": "4.5.4"
-        }
-      },
-      "System.Runtime": {
-        "type": "Transitive",
-        "resolved": "4.3.0",
-        "contentHash": "JufQi0vPQ0xGnAczR13AUFglDyVYt4Kqnz1AZaiKZ5+GICq0/1MH/mO/eAJHt/mHW1zjKBJd7kV26SrxddAhiw==",
-        "dependencies": {
-          "Microsoft.NETCore.Platforms": "1.1.0",
-          "Microsoft.NETCore.Targets": "1.1.0"
-        }
-      },
-      "System.Runtime.CompilerServices.Unsafe": {
-        "type": "Transitive",
-        "resolved": "4.5.3",
-        "contentHash": "3TIsJhD1EiiT0w2CcDMN/iSSwnNnsrnbzeVHSKkaEgV85txMprmuO+Yq2AdSbeVGcg28pdNDTPK87tJhX7VFHw=="
-      },
-      "System.Runtime.InteropServices.WindowsRuntime": {
-        "type": "Transitive",
-        "resolved": "4.3.0",
-        "contentHash": "J4GUi3xZQLUBasNwZnjrffN8i5wpHrBtZoLG+OhRyGo/+YunMRWWtwoMDlUAIdmX0uRfpHIBDSV6zyr3yf00TA==",
-        "dependencies": {
-          "System.Runtime": "4.3.0"
-        }
-      },
-      "System.Threading.Tasks.Extensions": {
-        "type": "Transitive",
-        "resolved": "4.5.4",
-        "contentHash": "zteT+G8xuGu6mS+mzDzYXbzS7rd3K6Fjb9RiZlYlJPam2/hU7JCBZBVEcywNuR+oZ1ncTvc/cq0faRr3P01OVg==",
-        "dependencies": {
-          "System.Runtime.CompilerServices.Unsafe": "4.5.3"
-        }
-      },
-      "speckle.sdk.dependencies": {
-        "type": "Project"
-      }
-    },
     "net8.0": {
       "GraphQL.Client": {
         "type": "Direct",

tests/Speckle.Sdk.Serialization.Testing/packages.lock.json

@@ -382,7 +382,7 @@
       },
       "Microsoft.Bcl.AsyncInterfaces": {
         "type": "CentralTransitive",
-        "requested": "[5.0.0, )",
+        "requested": "[9.0.4, )",
         "resolved": "1.1.0",
         "contentHash": "1Am6l4Vpn3/K32daEqZI+FFr96OlZkgwK2LcT3pZ2zWubR5zTPW3/FkO1Rat9kb7oQOa4rxgl9LJHc5tspCWfg=="
       },

tests/Speckle.Sdk.Serialization.Tests/ServerObjectManagerTests.cs

@@ -52,7 +52,7 @@ public class ServerObjectManagerTests : MoqTest
     http.Setup(x => x.CreateHttpClient(It.IsAny<HttpClientHandler>(), timeout, token)).Returns(httpClient);
 
     var activityFactory = Create<ISdkActivityFactory>();
-    activityFactory.Setup(x => x.Start(null, "DownloadObjects")).Returns((ISdkActivity?)null);
+    activityFactory.Setup(x => x.Start(null, default, "DownloadObjects")).Returns((ISdkActivity?)null);
 
     var serverObjectManager = new ServerObjectManager(
       http.Object,
@@ -91,7 +91,7 @@ public class ServerObjectManagerTests : MoqTest
     http.Setup(x => x.CreateHttpClient(It.IsAny<HttpClientHandler>(), timeout, token)).Returns(httpClient);
 
     var activityFactory = Create<ISdkActivityFactory>();
-    activityFactory.Setup(x => x.Start(null, "DownloadSingleObject")).Returns((ISdkActivity?)null);
+    activityFactory.Setup(x => x.Start(null, default, "DownloadSingleObject")).Returns((ISdkActivity?)null);
 
     var serverObjectManager = new ServerObjectManager(
       http.Object,
@@ -132,7 +132,7 @@ public class ServerObjectManagerTests : MoqTest
     http.Setup(x => x.CreateHttpClient(It.IsAny<HttpClientHandler>(), timeout, token)).Returns(httpClient);
 
     var activityFactory = Create<ISdkActivityFactory>();
-    activityFactory.Setup(x => x.Start(null, "HasObjects")).Returns((ISdkActivity?)null);
+    activityFactory.Setup(x => x.Start(null, default, "HasObjects")).Returns((ISdkActivity?)null);
 
     var serverObjectManager = new ServerObjectManager(
       http.Object,
@@ -171,7 +171,7 @@ public class ServerObjectManagerTests : MoqTest
     http.Setup(x => x.CreateHttpClient(It.IsAny<HttpClientHandler>(), timeout, token)).Returns(httpClient);
 
     var activityFactory = Create<ISdkActivityFactory>();
-    activityFactory.Setup(x => x.Start(null, "UploadObjects")).Returns((ISdkActivity?)null);
+    activityFactory.Setup(x => x.Start(null, default, "UploadObjects")).Returns((ISdkActivity?)null);
 
     var serverObjectManager = new ServerObjectManager(
       http.Object,

tests/Speckle.Sdk.Tests.Integration/Api/GraphQL/Resources/ModelIngestionResourceTests.cs

@@ -129,8 +129,10 @@ public sealed class ModelIngestionResourceTests : IAsyncLifetime
     ModelIngestionSuccessInput finish = new(ingest.id, _project.id, sendResult.RootId, "yay!");
     string versionId = await Sut.Complete(finish);
     Version version = await _testUser.Version.Get(versionId, _project.id);
+    ModelIngestion finalIngestion = await _testUser.Ingestion.Get(ingest.id, _project.id);
     Assert.Equal(version.id, versionId);
     Assert.Equal(sendResult.RootId, version.referencedObject);
+    Assert.Equal(finalIngestion.statusData.versionId, versionId);
   }
 
   [Fact]
@@ -147,6 +149,11 @@ public sealed class ModelIngestionResourceTests : IAsyncLifetime
     ModelIngestion res = await Sut.Get(ingest.id, _project.id);
     Assert.Equal(ingest.id, res.id);
     Assert.Equal(ingest.statusData.status, res.statusData.status);
+    Assert.Equal(ingest.statusData.versionId, res.statusData.versionId);
+    Assert.Null(res.statusData.versionId);
+    Assert.Equal(_model.id, res.modelId);
+    Assert.Equal(_project.id, res.projectId);
+    Assert.Equal(_testUser.Account.userInfo.id, res.userId);
   }
 
   [Fact]

tests/Speckle.Sdk.Tests.Integration/Api/GraphQL/Resources/ModelResourceTests.cs

@@ -141,4 +141,23 @@ public class ModelResourceTests : IAsyncLifetime
     guestResult.canCreateVersion.authorized.Should().Be(false);
     guestResult.canDelete.authorized.Should().Be(false);
   }
+
+  [Fact]
+  [Trait("Server", "Internal")]
+  public async Task TestCanCreateModelIngestion_InternalServer()
+  {
+    var ownerResult = await Sut.CanCreateModelIngestion(_project.id, _model.id);
+    ownerResult.authorized.Should().Be(true);
+  }
+
+  [Fact]
+  [Trait("Server", "Public")]
+  public async Task TestCanCreateModelIngestion_PublicServer_Throws()
+  {
+    var ex = await Assert.ThrowsAsync<AggregateException>(async () =>
+      await Sut.CanCreateModelIngestion(_project.id, _model.id)
+    );
+    ex.InnerExceptions.Should().HaveCount(1);
+    ex.InnerExceptions.Should().AllBeOfType<SpeckleGraphQLInvalidQueryException>();
+  }
 }

tests/Speckle.Sdk.Tests.Integration/Api/GraphQL/Resources/ProjectResourceExceptionalTests.cs

@@ -106,7 +106,7 @@ public class ProjectResourceExceptionalTests : IAsyncLifetime
     ProjectUpdateRoleInput input = new(_secondUser.Account.id.NotNull(), "NonExistentProject", newRole);
 
     var ex = await Assert.ThrowsAsync<AggregateException>(async () => _ = await Sut.UpdateRole(input));
-    ex.InnerExceptions.Single().Should().BeOfType<SpeckleGraphQLForbiddenException>();
+    ex.InnerExceptions.Single().Should().BeAssignableTo<SpeckleGraphQLException>(); //v3 server responds with SpeckleGraphQLStreamNotFoundException exception, v2 reponds with SpeckleGraphQLForbiddenException
   }
 
   [Theory]

tests/Speckle.Sdk.Tests.Integration/Api/GraphQL/Resources/SubscriptionResourceTests.cs

@@ -11,11 +11,11 @@ namespace Speckle.Sdk.Tests.Integration.API.GraphQL.Resources;
 public class SubscriptionResourceTests : IAsyncLifetime
 {
 #if DEBUG
-  private const int WAIT_PERIOD = 4000; // WSL is slow AF, so for local runs, we're being extra generous
+  private const int WAIT_PERIOD = 3000; // WSL is slow AF, so for local runs, we're being extra generous
 #else
-  private const int WAIT_PERIOD = 500; // For CI runs, a much smaller wait time is acceptable
+  private const int WAIT_PERIOD = 600; // For CI runs, a much smaller wait time is acceptable
 #endif
-  private const int TIMEOUT = WAIT_PERIOD + WAIT_PERIOD + 500;
+  private const int TIMEOUT = WAIT_PERIOD + WAIT_PERIOD + 600;
   private IClient _testUser;
   private Project _testProject;
   private Model _testModel;
@@ -32,6 +32,7 @@ public class SubscriptionResourceTests : IAsyncLifetime
   public async Task InitializeAsync()
   {
     _testUser = await Fixtures.SeedUserWithClient();
+    await _testUser.InitializeWebsocket();
     _testProject = await _testUser.Project.Create(new("test project123", "desc", null));
     _testModel = await _testUser.Model.Create(new("test model", "desc", _testProject.id));
     _testVersion = await Fixtures.CreateVersion(_testUser, _testProject.id, _testModel.id);

tests/Speckle.Sdk.Tests.Integration/Api/GraphQL/Resources/WorkspaceResourceTests.TestGetProjects.verified.json

@@ -1,8 +0,0 @@
-{
-  "Type": "AggregateException",
-  "InnerException": {
-    "Data": {},
-    "Message": "FORBIDDEN: Your auth token does not have the required scope: workspace:read.",
-    "Type": "SpeckleGraphQLForbiddenException"
-  }
-}

tests/Speckle.Sdk.Tests.Integration/Api/GraphQL/Resources/WorkspaceResourceTests.TestGetWorkspace.verified.json

@@ -1,8 +0,0 @@
-{
-  "Type": "AggregateException",
-  "InnerException": {
-    "Data": {},
-    "Message": "FORBIDDEN: Your auth token does not have the required scope: workspace:read.",
-    "Type": "SpeckleGraphQLForbiddenException"
-  }
-}

tests/Speckle.Sdk.Tests.Integration/Api/GraphQL/Resources/WorkspaceResourceTests.cs

@@ -1,4 +1,5 @@
-using Speckle.Sdk.Api;
+using FluentAssertions;
+using Speckle.Sdk.Api;
 using Speckle.Sdk.Api.GraphQL.Resources;
 
 namespace Speckle.Sdk.Tests.Integration.API.GraphQL.Resources;
@@ -25,13 +26,15 @@ public class WorkspaceResourceTests
   public async Task TestGetWorkspace()
   {
     var ex = await Assert.ThrowsAsync<AggregateException>(async () => _ = await Sut.Get("non-existent-id"));
-    await Verify(ex);
+    ex.InnerExceptions.Should().HaveCount(1);
+    ex.InnerExceptions.Should().AllBeOfType<SpeckleGraphQLForbiddenException>();
   }
 
   [Fact]
   public async Task TestGetProjects()
   {
     var ex = await Assert.ThrowsAsync<AggregateException>(async () => _ = await Sut.GetProjects("non-existent-id"));
-    await Verify(ex);
+    ex.InnerExceptions.Should().HaveCount(1);
+    ex.InnerExceptions.Should().AllBeOfType<SpeckleGraphQLForbiddenException>();
   }
 }

tests/Speckle.Sdk.Tests.Integration/Collections.cs

@@ -0,0 +1,7 @@
+namespace Speckle.Sdk.Tests.Integration;
+
+[CollectionDefinition(nameof(RequiresSqLiteAccountDb), DisableParallelization = true)]
+public sealed class RequiresSqLiteAccountDb;
+
+[CollectionDefinition(nameof(RequiresAuthFlowPort), DisableParallelization = true)]
+public sealed class RequiresAuthFlowPort;

tests/Speckle.Sdk.Tests.Integration/Credentials/AccountManagerTests.cs

@@ -0,0 +1,107 @@
+using Microsoft.Extensions.DependencyInjection;
+using Speckle.Sdk.Api;
+using Speckle.Sdk.Api.GraphQL.Models;
+using Speckle.Sdk.Credentials;
+
+namespace Speckle.Sdk.Tests.Integration.Credentials;
+
+[Collection(nameof(RequiresSqLiteAccountDb))]
+public class AccountManagerTests
+{
+  private IAccountManager _sut;
+
+  public AccountManagerTests()
+  {
+    _sut = Fixtures.ServiceProvider.GetRequiredService<IAccountManager>();
+  }
+
+  [Fact]
+  public async Task UpdateAccount_UpdatesUserInfo()
+  {
+    using IClient user = await Fixtures.SeedUserWithClient();
+    string realAccountId = user.Account.id;
+    UserInfo realUserData = user.Account.userInfo;
+    UserInfo staleData = new()
+    {
+      avatar = "my old avatar",
+      company = "my old company",
+      email = "my.old.email@example.com",
+      id = realUserData.id,
+      name = "my old name",
+    };
+    // Mutate with "fake" data to simulate a stale account data
+    user.Account.userInfo = staleData;
+    user.Account.id = null!; //force re-generate id
+
+    Assert.NotEqual(realAccountId, user.Account.id);
+
+    await _sut.UpdateAccountInMemory(user.Account);
+
+    Assert.Equal(realUserData.avatar, user.Account.userInfo.avatar);
+    Assert.Equal(realUserData.company, user.Account.userInfo.company);
+    Assert.Equal(realUserData.email, user.Account.userInfo.email);
+    Assert.Equal(realUserData.id, user.Account.userInfo.id);
+    Assert.Equal(realUserData.name, user.Account.userInfo.name);
+    Assert.Equal(realAccountId, user.Account.id);
+  }
+
+  [Fact]
+  public async Task UpdateAccount_UpdatesServerInfo()
+  {
+    using IClient user = await Fixtures.SeedUserWithClient();
+    string realAccountId = user.Account.id;
+    ServerInfo realServerData = user.Account.serverInfo;
+    ServerInfo staleData = new()
+    {
+      company = "This old company",
+      description = "this old description",
+      name = "This old name",
+      url = realServerData.url,
+      version = "0.0.123",
+    };
+    // Mutate with "fake" data to simulate a stale account data
+    user.Account.serverInfo = staleData;
+    user.Account.id = null!; //force re-generate id
+
+    Assert.Equal(realAccountId, user.Account.id); //account id should not change since we didn't change server url
+
+    await _sut.UpdateAccountInMemory(user.Account);
+
+    Assert.Equal(realServerData.company, user.Account.serverInfo.company);
+    Assert.Equal(realServerData.description, user.Account.serverInfo.description);
+    Assert.Equal(realServerData.name, user.Account.serverInfo.name);
+    Assert.Equal(realServerData.url, user.Account.serverInfo.url);
+    Assert.Equal(realServerData.version, user.Account.serverInfo.version);
+    Assert.Equal(realAccountId, user.Account.id);
+  }
+
+  [Fact]
+  public async Task UpdateAccount_ServerInfoMigration()
+  {
+    using IClient user = await Fixtures.SeedUserWithClient();
+    string realAccountId = user.Account.id;
+    ServerInfo realServerData = user.Account.serverInfo;
+    ServerInfo staleData = new()
+    {
+      company = "This old company",
+      description = "this old description",
+      name = "This old name",
+      url = realServerData.url,
+      version = "0.0.123",
+    };
+    // Mutate with "fake" data to simulate a stale account data
+    user.Account.serverInfo = staleData;
+    user.Account.id = null!; //force re-generate id
+
+    Assert.Equal(realAccountId, user.Account.id); //account id should not change since we didn't change server url
+
+    await _sut.UpdateAccountInMemory(user.Account);
+
+    Assert.Equal(realServerData.company, user.Account.serverInfo.company);
+    Assert.Equal(realServerData.description, user.Account.serverInfo.description);
+    Assert.Equal(realServerData.name, user.Account.serverInfo.name);
+    Assert.Equal(realServerData.url, user.Account.serverInfo.url);
+    Assert.Equal(realServerData.version, user.Account.serverInfo.version);
+    Assert.Equal(realAccountId, user.Account.id);
+  }
+}

tests/Speckle.Sdk.Tests.Integration/Credentials/AuthFlowExceptionalTests.cs

@@ -0,0 +1,84 @@
+using System.Net;
+using Microsoft.Extensions.DependencyInjection;
+using Speckle.Sdk.Api;
+using Speckle.Sdk.Credentials;
+
+namespace Speckle.Sdk.Tests.Integration.Credentials;
+
+[Collection(nameof(RequiresAuthFlowPort))]
+public class AuthFlowExceptionalTests : IAsyncLifetime
+{
+  private IAuthFlow _authFlow;
+  private IClient _client;
+  private readonly Uri _url = AuthApp.ConnectorsV3.CallbackUrl;
+
+  [Fact]
+  public async Task GetRefreshToken_Cancellation()
+  {
+    await Assert.ThrowsAnyAsync<OperationCanceledException>(async () =>
+      _ = await _authFlow.GetRefreshedToken(
+        _client.Account.refreshToken,
+        _client.ServerUrl,
+        Fixtures.TestAuthApp,
+        new(true)
+      )
+    );
+  }
+
+  [Fact]
+  public async Task GetRefreshToken_UnknownApp()
+  {
+    //interestingly, the server responds with a 401 Unauthorized despite internally being a bad request
+    await Assert.ThrowsAnyAsync<HttpRequestException>(async () =>
+      _ = await _authFlow.GetRefreshedToken(
+        _client.Account.refreshToken,
+        _client.ServerUrl,
+        new()
+        {
+          AppId = "doesn't exist",
+          AppSecret = "doesn't exist",
+          CallbackUrl = new("invalid://localhost"),
+        },
+        CancellationToken.None
+      )
+    );
+  }
+
+  [Fact]
+  public async Task GetRefreshToken_NullRefreshToken()
+  {
+    await Assert.ThrowsAnyAsync<HttpRequestException>(async () =>
+      _ = await _authFlow.GetRefreshedToken(null, _client.ServerUrl, AuthApp.ConnectorsV3, CancellationToken.None)
+    );
+  }
+
+  [Fact]
+  public async Task SimultaneousListeners_SamePort_OneFails()
+  {
+    using CancellationTokenSource ct = new();
+    var task1 = AuthFlow.RunListener(_url, ct.Token);
+    await Task.Delay(50, CancellationToken.None);
+
+    await Assert.ThrowsAsync<HttpListenerException>(async () => await AuthFlow.RunListener(_url, ct.Token));
+
+    if (task1.IsCompleted)
+    {
+      throw new InvalidOperationException("Was expecting task to still be running", task1.Exception);
+    }
+
+    await ct.CancelAsync();
+    await Assert.ThrowsAnyAsync<OperationCanceledException>(async () => await task1);
+  }
+
+  public async Task InitializeAsync()
+  {
+    _authFlow = Fixtures.ServiceProvider.GetRequiredService<IAuthFlow>();
+    _client = await Fixtures.SeedUserWithClient();
+  }
+
+  public Task DisposeAsync()
+  {
+    _client.Dispose();
+    return Task.CompletedTask;
+  }
+}

tests/Speckle.Sdk.Tests.Integration/Credentials/AuthFlowTests.cs

@@ -0,0 +1,94 @@
+using Microsoft.Extensions.DependencyInjection;
+using Speckle.Sdk.Credentials;
+
+namespace Speckle.Sdk.Tests.Integration.Credentials;
+
+[Collection(nameof(RequiresAuthFlowPort))]
+public sealed class AuthFlowTests
+{
+  private readonly IAuthFlow _authFlow;
+  private readonly Uri _url = AuthApp.ConnectorsV3.CallbackUrl;
+
+  public AuthFlowTests()
+  {
+    _authFlow = Fixtures.ServiceProvider.GetRequiredService<IAuthFlow>();
+  }
+
+  [Fact]
+  public async Task RunListener_ReturnsAccessCode_WhenQueryContainsAccessCode()
+  {
+    var listenerTask = AuthFlow.RunListener(_url, CancellationToken.None);
+    using var client = new HttpClient();
+    const string EXPECTED_ACCESS_CODE = "abcdef123456";
+
+    var response = await client.GetAsync(new Uri(_url, $"?access_code={EXPECTED_ACCESS_CODE}"));
+    response.EnsureSuccessStatusCode();
+
+    string result = await listenerTask;
+
+    Assert.Equal(EXPECTED_ACCESS_CODE, result);
+  }
+
+  [Fact]
+  public async Task RunListener_Throws_InvalidAccessCode()
+  {
+    var listenerTask = AuthFlow.RunListener(_url, CancellationToken.None);
+    using var client = new HttpClient();
+
+    var response = await client.GetAsync(new Uri(_url, ""));
+    response.EnsureSuccessStatusCode();
+
+    await Assert.ThrowsAsync<AuthFlowException>(async () =>
+    {
+      _ = await listenerTask;
+    });
+  }
+
+  [Fact]
+  public async Task RunListener_Throws_Cancellation()
+  {
+    using CancellationTokenSource cancellationTokenSource = new();
+    var listenerTask = AuthFlow.RunListener(_url, cancellationTokenSource.Token);
+
+    await cancellationTokenSource.CancelAsync();
+
+    await Assert.ThrowsAsync<OperationCanceledException>(async () =>
+    {
+      _ = await listenerTask;
+    });
+  }
+
+  [Theory]
+  [InlineData(0.1)]
+  [InlineData(1)]
+  [InlineData(5)]
+  public async Task RunListener_Timeout(double timeS)
+  {
+    await Assert.ThrowsAsync<TimeoutException>(async () =>
+    {
+      _ = await _authFlow.RunListenerWithTimeout(_url, TimeSpan.FromSeconds(timeS), CancellationToken.None);
+    });
+  }
+
+  [Fact]
+  public async Task CanGetRefreshToken()
+  {
+    using var user = await Fixtures.SeedUserWithClient();
+    var tokenExchange = await _authFlow.GetRefreshedToken(
+      user.Account.refreshToken,
+      user.ServerUrl,
+      Fixtures.TestAuthApp,
+      CancellationToken.None
+    );
+
+    Assert.NotNull(tokenExchange.token);
+    Assert.NotNull(tokenExchange.refreshToken);
+
+    user.Account.token = tokenExchange.token;
+    user.Account.refreshToken = tokenExchange.refreshToken;
+
+    var apiTest = await user.ActiveUser.Get();
+
+    Assert.NotNull(apiTest);
+  }
+}

tests/Speckle.Sdk.Tests.Integration/Fixtures.cs

@@ -27,7 +27,12 @@ namespace Speckle.Sdk.Tests.Integration;
 public static class Fixtures
 {
   public static readonly ServerInfo Server = new() { url = "http://localhost:3000", name = "Docker Server" };
-
+  public static readonly AuthApp TestAuthApp = new()
+  {
+    AppId = "spklwebapp",
+    AppSecret = "spklwebapp",
+    CallbackUrl = new Uri("invaid://localhost"),
+  };
   public static IServiceProvider ServiceProvider { get; set; }
 
   static Fixtures()
@@ -95,8 +100,8 @@ public static class Fixtures
     Dictionary<string, string> tokenBody = new()
     {
       ["accessCode"] = accessCode,
-      ["appId"] = "spklwebapp",
-      ["appSecret"] = "spklwebapp",
+      ["appId"] = TestAuthApp.AppId,
+      ["appSecret"] = TestAuthApp.AppSecret,
       ["challenge"] = "challengingchallenge",
     };
 
@@ -109,8 +114,11 @@ public static class Fixtures
     );
 
     var token = deserialised.NotNull()["token"].NotNull();
+    var refreshToken = deserialised.NotNull()["refreshToken"].NotNull();
 
-    return await ServiceProvider.GetRequiredService<IAccountFactory>().CreateAccount(new(Server.url), token);
+    return await ServiceProvider
+      .GetRequiredService<IAccountFactory>()
+      .CreateAccount(new(Server.url), token, refreshToken);
   }
 
   public static Base GenerateSimpleObject()

tests/Speckle.Sdk.Tests.Integration/Pipelines/Progress/IngestionProgressManagerTests.cs

@@ -0,0 +1,76 @@
+using Microsoft.Extensions.DependencyInjection;
+using Speckle.Sdk.Api;
+using Speckle.Sdk.Api.GraphQL.Models;
+using Speckle.Sdk.Common;
+using Speckle.Sdk.Pipelines.Progress;
+
+namespace Speckle.Sdk.Tests.Integration.Pipelines.Progress;
+
+[Trait("Server", "Internal")]
+public class IngestionProgressManagerTests : IAsyncLifetime
+{
+  private IIngestionProgressManagerFactory _factory;
+  private IClient _client;
+  private Project _project;
+  private Model _model;
+  private ModelIngestion _ingestion;
+
+  public async Task InitializeAsync()
+  {
+    var serviceProvider = TestServiceSetup.GetServiceProvider();
+    _factory = serviceProvider.GetRequiredService<IIngestionProgressManagerFactory>();
+
+    _client = await Fixtures.SeedUserWithClient();
+    _project = await _client.Project.Create(new("test", null, default));
+    _model = await _client.Model.Create(new("test", null, _project.id));
+    _ingestion = await _client.Ingestion.Create(
+      new(_model.id, _project.id, "Testing ingestion", new("integrationTests", "0.0.0", null, null))
+    );
+  }
+
+  [Fact]
+  public async Task TestProgress_NoThrottle()
+  {
+    var sut = _factory.CreateInstance(_client, _ingestion, TimeSpan.Zero, CancellationToken.None);
+    const string FIRST_MESSAGE = "This is a test 123";
+    const string SECOND_MESSAGE = "This is another test 321";
+
+    // first message (should go through)
+    sut.Report(new CardProgress(FIRST_MESSAGE, 0.123123123d));
+    await sut.LastUpdate.NotNull();
+    var res = await _client.Ingestion.Get(_ingestion.id, _project.id, CancellationToken.None);
+
+    Assert.Equal(FIRST_MESSAGE, res.statusData.progressMessage);
+
+    // second message (should also go through)
+    sut.Report(new CardProgress(SECOND_MESSAGE, 0.321321321d));
+    await sut.LastUpdate.NotNull();
+    res = await _client.Ingestion.Get(_ingestion.id, _project.id, CancellationToken.None);
+
+    Assert.Equal(SECOND_MESSAGE, res.statusData.progressMessage);
+  }
+
+  [Fact]
+  public async Task TestProgress_WithThrottle()
+  {
+    var sut = _factory.CreateInstance(_client, _ingestion, TimeSpan.FromMilliseconds(500), CancellationToken.None);
+    const string EXPECTED_MESSAGE = "First message should go through 123";
+
+    await Task.Delay(TimeSpan.FromMilliseconds(600));
+
+    // first message (should go through)
+    sut.Report(new CardProgress(EXPECTED_MESSAGE, 0.123123123d));
+    // second message (should be dropped)
+    sut.Report(new CardProgress("Second message, should be dropped", 0.321321321d));
+    await sut.LastUpdate.NotNull();
+    var res = await _client.Ingestion.Get(_ingestion.id, _project.id, CancellationToken.None);
+
+    Assert.Equal(EXPECTED_MESSAGE, res.statusData.progressMessage);
+  }
+
+  public Task DisposeAsync()
+  {
+    _client.Dispose();
+    return Task.CompletedTask;
+  }
+}

tests/Speckle.Sdk.Tests.Integration/Speckle.Sdk.Tests.Integration.csproj

@@ -16,4 +16,7 @@
     <ProjectReference Include="..\..\src\Speckle.Sdk\Speckle.Sdk.csproj" />
     <ProjectReference Include="..\Speckle.Sdk.Testing\Speckle.Sdk.Testing.csproj" />
   </ItemGroup>
+  <ItemGroup>
+    <Folder Include="Pipelines\Send\" />
+  </ItemGroup>
 </Project>

tests/Speckle.Sdk.Tests.Performance/packages.lock.json

@@ -374,7 +374,7 @@
       },
       "Microsoft.Bcl.AsyncInterfaces": {
         "type": "CentralTransitive",
-        "requested": "[5.0.0, )",
+        "requested": "[9.0.4, )",
         "resolved": "1.1.0",
         "contentHash": "1Am6l4Vpn3/K32daEqZI+FFr96OlZkgwK2LcT3pZ2zWubR5zTPW3/FkO1Rat9kb7oQOa4rxgl9LJHc5tspCWfg=="
       },

tests/Speckle.Sdk.Tests.Unit/Credentials/AccountManagerTests.cs

@@ -3,7 +3,6 @@ using Moq;
 using Speckle.Newtonsoft.Json;
 using Speckle.Sdk.Api.GraphQL.Models;
 using Speckle.Sdk.Credentials;
-using Speckle.Sdk.Helpers;
 using Speckle.Sdk.SQLite;
 using Speckle.Sdk.Testing;
 
@@ -28,14 +27,11 @@ public sealed class AccountManagerTests : MoqTest
     ) => throw new NotImplementedException();
   }
 
-  private readonly Mock<ISpeckleApplication> _mockApplication;
   private readonly Mock<ILogger<AccountManager>> _mockLogger;
-  private readonly Mock<IGraphQLClientFactory> _mockGraphQLClientFactory;
-  private readonly Mock<ISpeckleHttp> _mockSpeckleHttp;
   private readonly IAccountFactory _mockAccountFactory;
   private readonly Mock<ISqLiteJsonCacheManagerFactory> _mockSqLiteJsonCacheManagerFactory;
   private readonly Mock<ISqLiteJsonCacheManager> _mockAccountStorage;
-  private readonly Mock<ISqLiteJsonCacheManager> _mockAccountAddLockStorage;
+  private readonly Mock<IAuthFlow> _mockAuthFlow;
 
 #pragma warning disable CA2213
   private readonly AccountManager _accountManager;
@@ -43,27 +39,19 @@ public sealed class AccountManagerTests : MoqTest
 
   public AccountManagerTests()
   {
-    _mockApplication = Create<ISpeckleApplication>();
     _mockLogger = Create<ILogger<AccountManager>>(MockBehavior.Loose);
-    _mockGraphQLClientFactory = Create<IGraphQLClientFactory>();
-    _mockSpeckleHttp = Create<ISpeckleHttp>();
     _mockAccountFactory = new TestAccountFactory();
     _mockSqLiteJsonCacheManagerFactory = Create<ISqLiteJsonCacheManagerFactory>();
+    _mockAuthFlow = Create<IAuthFlow>();
 
     _mockAccountStorage = Create<ISqLiteJsonCacheManager>();
-    _mockAccountAddLockStorage = Create<ISqLiteJsonCacheManager>();
 
     _mockSqLiteJsonCacheManagerFactory.Setup(f => f.CreateForUser("Accounts")).Returns(_mockAccountStorage.Object);
-    _mockSqLiteJsonCacheManagerFactory
-      .Setup(f => f.CreateForUser("AccountAddFlow"))
-      .Returns(_mockAccountAddLockStorage.Object);
 
     _accountManager = new AccountManager(
-      _mockApplication.Object,
       _mockLogger.Object,
-      _mockGraphQLClientFactory.Object,
-      _mockSpeckleHttp.Object,
       _mockAccountFactory,
+      _mockAuthFlow.Object,
       _mockSqLiteJsonCacheManagerFactory.Object
     );
   }
@@ -330,71 +318,6 @@ public sealed class AccountManagerTests : MoqTest
     );
   }
 
-  [Fact]
-  public void GetLocalIdentifierForAccount_ReturnsIdentifier_WhenAccountExists()
-  {
-    // Arrange
-    var account = CreateTestAccount("test-account");
-    var expectedUri = new Uri($"{account.serverInfo.url}?id={account.userInfo.id}");
-
-    _mockAccountStorage.Setup(s => s.GetAllObjects()).Returns(new[] { ("bad", JsonConvert.SerializeObject(account)) });
-
-    // Act
-    var result = _accountManager.GetLocalIdentifierForAccount(account);
-
-    // Assert
-    Assert.NotNull(result);
-    Assert.Equal(expectedUri, result);
-  }
-
-  [Fact]
-  public void GetLocalIdentifierForAccount_ReturnsNull_WhenAccountDoesNotExist()
-  {
-    // Arrange
-    var account = CreateTestAccount("non-existent-account");
-
-    _mockAccountStorage.Setup(s => s.GetAllObjects()).Returns([]);
-
-    // Act
-    var result = _accountManager.GetLocalIdentifierForAccount(account);
-
-    // Assert
-    Assert.Null(result);
-  }
-
-  [Fact]
-  public void GetAccountForLocalIdentifier_ReturnsAccount_WhenMatches()
-  {
-    // Arrange
-    var account = CreateTestAccount("test-account");
-    var localIdentifier = new Uri($"{account.serverInfo.url}?id={account.userInfo.id}");
-
-    _mockAccountStorage.Setup(s => s.GetAllObjects()).Returns(new[] { ("bad", JsonConvert.SerializeObject(account)) });
-
-    // Act
-    var result = _accountManager.GetAccountForLocalIdentifier(localIdentifier);
-
-    // Assert
-    Assert.NotNull(result);
-    Assert.Equal(account.id, result!.id);
-  }
-
-  [Fact]
-  public void GetAccountForLocalIdentifier_ReturnsNull_WhenNoMatch()
-  {
-    // Arrange
-    var account = CreateTestAccount("test-account");
-    var localIdentifier = new Uri("https://different.url?u=different-user");
-
-    _mockAccountStorage.Setup(s => s.GetAllObjects()).Returns(new[] { ("bad", JsonConvert.SerializeObject(account)) });
-
-    // Act
-    var result = _accountManager.GetAccountForLocalIdentifier(localIdentifier);
-
-    // Assert
-    Assert.Null(result);
-  }
-
   // Helper method to create a test account
   private static Account CreateTestAccount(string id)
   {

tests/Speckle.Sdk.Tests.Unit/Credentials/Accounts.cs

@@ -48,7 +48,7 @@ public class CredentialInfrastructure : IDisposable
   {
     Fixtures.UpdateOrSaveAccount(s_testAccount1);
     Fixtures.UpdateOrSaveAccount(s_testAccount2);
-    Fixtures.SaveLocalAccount(s_testAccount3);
+    Fixtures.UpdateOrSaveAccount(s_testAccount3);
 
     var serviceProvider = TestServiceSetup.GetServiceProvider();
     _accountManager = serviceProvider.GetRequiredService<IAccountManager>();
@@ -60,7 +60,6 @@ public class CredentialInfrastructure : IDisposable
     Fixtures.DeleteLocalAccount(s_testAccount1.id);
     Fixtures.DeleteLocalAccount(s_testAccount2.id);
     Fixtures.DeleteLocalAccount(s_testAccount3.id);
-    Fixtures.DeleteLocalAccountFile();
   }
 
   [Fact]
@@ -93,7 +92,7 @@ public class CredentialInfrastructure : IDisposable
   {
     var accs = _accountManager.GetAccounts(target.serverInfo.url).ToList();
 
-    accs.Count.Should().Be(1);
+    accs.Should().HaveCount(1);
 
     var acc = accs[0];
 
@@ -103,24 +102,4 @@ public class CredentialInfrastructure : IDisposable
     acc.refreshToken.Should().Be(target.refreshToken);
     acc.token.Should().Be(target.token);
   }
-
-  [Fact]
-  public void EnsureLocalIdentifiers_AreUniqueAcrossServers()
-  {
-    // Accounts with the same user ID in different servers should always result in different local identifiers.
-    string id = "12345";
-    var acc1 = new Account
-    {
-      serverInfo = new ServerInfo { url = "https://speckle.xyz" },
-      userInfo = new UserInfo { id = id },
-    }.GetLocalIdentifier();
-
-    var acc2 = new Account
-    {
-      serverInfo = new ServerInfo { url = "https://app.speckle.systems" },
-      userInfo = new UserInfo { id = id },
-    }.GetLocalIdentifier();
-
-    acc1.Should().NotBe(acc2);
-  }
 }

tests/Speckle.Sdk.Tests.Unit/Credentials/AuthFlowTests.cs

@@ -0,0 +1,36 @@
+using Speckle.Sdk.Credentials;
+
+namespace Speckle.Sdk.Tests.Unit.Credentials;
+
+public class AuthFlowTests
+{
+  private const int REPEAT = 20;
+
+  [Fact]
+  public void GenerateChallenge_ReturnsValidUniqueChallenge()
+  {
+    var codeVerifiers = Enumerable.Range(0, REPEAT).Select(_ => AuthFlow.GenerateCodeVerifier()).ToArray();
+
+    Assert.All(
+      codeVerifiers,
+      item =>
+      {
+        Assert.Equal(43, item.Length);
+        Assert.Matches(@"^[A-Za-z0-9\-_+/]*$", item);
+      }
+    );
+
+    Assert.Equivalent(codeVerifiers, codeVerifiers.Distinct());
+    var challenges = codeVerifiers.Select(AuthFlow.GenerateCodeChallenge).ToArray();
+
+    Assert.All(
+      challenges,
+      item =>
+      {
+        Assert.Equal(43, item.Length);
+        Assert.Matches(@"^[A-Za-z0-9\-_+/]*$", item);
+      }
+    );
+    Assert.Equivalent(challenges, challenges.Distinct());
+  }
+}

tests/Speckle.Sdk.Tests.Unit/Fixtures.cs

@@ -1,7 +1,6 @@
 using Newtonsoft.Json;
 using Speckle.Sdk.Common;
 using Speckle.Sdk.Credentials;
-using Speckle.Sdk.Logging;
 using Speckle.Sdk.Transports;
 
 namespace Speckle.Sdk.Tests.Unit;
@@ -10,11 +9,6 @@ public abstract class Fixtures
 {
   private static readonly SQLiteTransport s_accountStorage = new(scope: "Accounts");
 
-  private static readonly string s_accountPath = Path.Combine(
-    SpecklePathProvider.AccountsFolderPath,
-    "TestAccount.json"
-  );
-
   public static void UpdateOrSaveAccount(Account account)
   {
     DeleteLocalAccount(account.id.NotNull());
@@ -22,13 +16,5 @@ public abstract class Fixtures
     s_accountStorage.SaveObjectSync(account.id, serializedObject);
   }
 
-  public static void SaveLocalAccount(Account account)
-  {
-    var json = JsonConvert.SerializeObject(account);
-    File.WriteAllText(s_accountPath, json);
-  }
-
   public static void DeleteLocalAccount(string id) => s_accountStorage.DeleteObject(id);
-
-  public static void DeleteLocalAccountFile() => File.Delete(s_accountPath);
 }

tests/Speckle.Sdk.Tests.Unit/Pipelines/Progress/AggregateProgressTests.cs

@@ -0,0 +1,21 @@
+using Moq;
+using Speckle.Sdk.Pipelines.Progress;
+
+namespace Speckle.Sdk.Tests.Unit.Pipelines.Progress;
+
+public class AggregateProgressTests
+{
+  [Fact]
+  public void Report_InvokesReportOnAllInnerProgresses()
+  {
+    var mock1 = new Mock<IProgress<int>>();
+    var mock2 = new Mock<IProgress<int>>();
+    const int TEST_VALUE = 42;
+    var target = new AggregateProgress<int>(mock1.Object, mock2.Object);
+
+    target.Report(TEST_VALUE);
+
+    mock1.Verify(x => x.Report(TEST_VALUE), Times.Once);
+    mock2.Verify(x => x.Report(TEST_VALUE), Times.Once);
+  }
+}

tests/Speckle.Sdk.Tests.Unit/Pipelines/Progress/ProgressStreamTests.cs

@@ -0,0 +1,72 @@
+using System.Diagnostics.CodeAnalysis;
+using Moq;
+using Speckle.Sdk.Pipelines.Progress;
+
+namespace Speckle.Sdk.Tests.Unit.Pipelines.Progress;
+
+[SuppressMessage(
+  "Performance",
+  "CA1835:Prefer the \'Memory\'-based overloads for \'ReadAsync\' and \'WriteAsync\'",
+  Justification = "Need to test it"
+)]
+public class ProgressStreamTests : IDisposable
+{
+  private readonly Mock<Stream> _innerStreamMock;
+  private readonly Mock<IProgress<StreamProgressArgs>> _progressMock;
+  private readonly ProgressStream _sut;
+
+  public ProgressStreamTests()
+  {
+    // Setup the mocks
+    _innerStreamMock = new Mock<Stream>();
+    _innerStreamMock.Setup(s => s.Length).Returns(1024L);
+
+    _progressMock = new Mock<IProgress<StreamProgressArgs>>();
+
+    // Inject mocks into the System Under Test
+    _sut = new ProgressStream(_innerStreamMock.Object, _progressMock.Object);
+  }
+
+  [Fact]
+  public async Task ReadAsync_Should_CallInnerStreamAndReportProgress()
+  {
+    // Arrange
+    var buffer = new byte[10];
+    _innerStreamMock
+      .Setup(s => s.ReadAsync(buffer, 0, buffer.Length, CancellationToken.None))
+      .Returns(Task.FromResult(5));
+
+    // Act
+    await _sut.ReadAsync(buffer, 0, buffer.Length);
+
+    // Assert - Inner Stream Read was called
+    _innerStreamMock.Verify(s => s.ReadAsync(buffer, 0, buffer.Length, CancellationToken.None), Times.Once);
+
+    // Assert - Progress Report was called with the correct byte count
+    _progressMock.Verify(p => p.Report(It.IsAny<StreamProgressArgs>()), Times.Once);
+  }
+
+  [Fact]
+  public async Task WriteAsync_Should_CallInnerStreamAndReportProgress()
+  {
+    // Arrange
+    var buffer = new byte[10];
+    _innerStreamMock
+      .Setup(s => s.WriteAsync(buffer, 0, buffer.Length, CancellationToken.None))
+      .Returns(Task.FromResult(5));
+
+    // Act
+    await _sut.WriteAsync(buffer, 0, buffer.Length);
+
+    // Assert - Inner Stream Write was called
+    _innerStreamMock.Verify(s => s.WriteAsync(buffer, 0, buffer.Length, CancellationToken.None), Times.Once);
+
+    // Assert - Progress Report was called with the correct byte count
+    _progressMock.Verify(p => p.Report(It.IsAny<StreamProgressArgs>()), Times.Once);
+  }
+
+  public void Dispose()
+  {
+    _sut.Dispose();
+  }
+}

tests/Speckle.Sdk.Tests.Unit/Pipelines/Progress/RenderedStreamProgressTests.cs

@@ -0,0 +1,46 @@
+using Speckle.Sdk.Pipelines.Progress;
+
+namespace Speckle.Sdk.Tests.Unit.Pipelines.Progress;
+
+public class RenderedStreamProgressTests
+{
+  [Theory]
+  [InlineData(1, "B", 1.0)]
+  [InlineData(1024, "B", 1.0)]
+  [InlineData(1024 + 1, "KB", 1.0 / 1024)]
+  [InlineData(1024 * 1024, "KB", 1.0 / 1024)]
+  [InlineData(1024 * 1024 + 1, "MB", 1.0 / (1024 * 1024))]
+  [InlineData(1024 * 1024 * 1024, "MB", 1.0 / (1024 * 1024))]
+  [InlineData(1024 * 1024 * 1024 + 1, "GB", 1.0 / (1024 * 1024 * 1024))]
+  [InlineData(1024L * 1024L * 1024L * 1024L, "GB", 1.0 / (1024L * 1024L * 1024L))]
+  public void GetFileSizeRendering_WithPositiveValue_ReturnsCorrectSuffix(
+    long value,
+    string expectedSuffix,
+    double expectedScaleFactor
+  )
+  {
+    var result = RenderedStreamProgress.GetFileSizeRendering(value);
+
+    Assert.Equal(expectedSuffix, result.suffix);
+    Assert.Equal(expectedScaleFactor, result.scaleFactor);
+  }
+
+  [Theory]
+  [InlineData(0)]
+  [InlineData(-1)]
+  [InlineData(-1000)]
+  public void GetFileSizeRendering_WithNonPositiveValue_ReturnsBytesSuffix(long value)
+  {
+    var result = RenderedStreamProgress.GetFileSizeRendering(value);
+
+    Assert.Equal("B", result.suffix);
+    Assert.Equal(1d, result.scaleFactor);
+  }
+
+  [Theory]
+  [InlineData(long.MaxValue)]
+  public void GetFileSizeRendering_WithVeryLargeValue_ThrowsArgumentOutOfRangeException(long value)
+  {
+    Assert.Throws<ArgumentOutOfRangeException>(() => RenderedStreamProgress.GetFileSizeRendering(value));
+  }
+}