Iain Sproat
a7ca2f482c
* Revert "fix(/api/diff): return 400 if greater than max objects (#1736)"
This reverts commit 783e785b32.
* fix(/api/diff): chunk long object lists to remain within maximum length
56 lines
1.5 KiB
JavaScript
56 lines
1.5 KiB
JavaScript
'use strict'
|
|
const zlib = require('zlib')
|
|
const { corsMiddleware } = require('@/modules/core/configs/cors')
|
|
|
|
const { validatePermissionsWriteStream } = require('./authUtils')
|
|
|
|
const { hasObjects } = require('../services/objects')
|
|
|
|
const { chunk } = require('lodash')
|
|
|
|
module.exports = (app) => {
|
|
app.options('/api/diff/:streamId', corsMiddleware())
|
|
|
|
app.post('/api/diff/:streamId', corsMiddleware(), async (req, res) => {
|
|
req.log = req.log.child({
|
|
userId: req.context.userId || '-',
|
|
streamId: req.params.streamId
|
|
})
|
|
const hasStreamAccess = await validatePermissionsWriteStream(
|
|
req.params.streamId,
|
|
req
|
|
)
|
|
if (!hasStreamAccess.result) {
|
|
return res.status(hasStreamAccess.status).end()
|
|
}
|
|
|
|
const objectList = JSON.parse(req.body.objects)
|
|
|
|
req.log.info(`Diffing ${objectList.length} objects.`)
|
|
|
|
const chunkSize = 1000
|
|
const objectListChunks = chunk(objectList, chunkSize)
|
|
const mappedObjects = await Promise.all(
|
|
objectListChunks.map((objectListChunk) =>
|
|
hasObjects({
|
|
streamId: req.params.streamId,
|
|
objectIds: objectListChunk
|
|
})
|
|
)
|
|
)
|
|
const response = {}
|
|
Object.assign(response, ...mappedObjects)
|
|
|
|
req.log.debug(response)
|
|
res.writeHead(200, {
|
|
'Content-Encoding': 'gzip',
|
|
'Content-Type': 'application/json'
|
|
})
|
|
const gzip = zlib.createGzip()
|
|
gzip.write(JSON.stringify(response))
|
|
gzip.flush()
|
|
gzip.end()
|
|
gzip.pipe(res)
|
|
})
|
|
}
|