Kristaps Fabians Geikins
75 lines
1.9 KiB
TypeScript
75 lines
1.9 KiB
TypeScript
import type { NormalizedCacheObject, ApolloQueryResult } from '@apollo/client/core'
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import { ApolloClient, InMemoryCache, HttpLink, gql } from '@apollo/client/core'
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import { setContext } from '@apollo/client/link/context/context.cjs'
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import { getServerVersion } from '@/modules/shared/helpers/envHelper'
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import type { CrossSyncClientTestQuery } from '@/modules/core/graph/generated/graphql'
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import { EnvironmentResourceError } from '@/modules/shared/errors'
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export type GraphQLClient = ApolloClient<NormalizedCacheObject>
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const testQuery = gql`
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query CrossSyncClientTest {
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_
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}
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`
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export const assertValidGraphQLResult = (
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res: ApolloQueryResult<unknown>,
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operationName: string
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) => {
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if (res.errors?.length) {
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throw new EnvironmentResourceError(
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`GQL operation '${operationName}' failed because of errors: ` +
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JSON.stringify(res.errors)
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)
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}
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}
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export const createApolloClient = async (
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origin: string,
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params?: { token?: string }
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): Promise<GraphQLClient> => {
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const cache = new InMemoryCache()
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const baseLink = new HttpLink({ uri: `${origin}/graphql`, fetch })
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const authLink = setContext((_, { headers }) => {
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return {
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headers: {
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...headers,
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authorization: params?.token ? `Bearer ${params.token}` : ''
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}
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}
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})
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const client = new ApolloClient({
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link: authLink.concat(baseLink),
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cache,
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name: 'cli',
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version: getServerVersion(),
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defaultOptions: {
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query: {
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fetchPolicy: 'no-cache',
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errorPolicy: 'all'
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}
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}
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})
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// Test it out
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const res = await client.query<CrossSyncClientTestQuery>({
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query: testQuery
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})
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assertValidGraphQLResult(res, 'Target server test query')
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if (!res.data?._) {
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throw new EnvironmentResourceError(
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"Couldn't construct working Apollo Client, test query failed cause of unexpected response: " +
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JSON.stringify(res.data)
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)
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}
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return client
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}
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export { gql }
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