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promise-all-reject-late
Advanced tools
Like Promise.all, but save rejections until all promises are resolved
Readme
Like Promise.all, but save rejections until all promises are resolved.
This is handy when you want to do a bunch of things in parallel, and rollback on failure, without clobbering or conflicting with those parallel actions that may be in flight. For example, creating a bunch of files, and deleting any if they don't all succeed.
Example:
const lateReject = require('promise-all-reject-late')
const { promisify } = require('util')
const fs = require('fs')
const writeFile = promisify(fs.writeFile)
const createFilesOrRollback = (files) => {
return lateReject(files.map(file => writeFile(file, 'some data')))
.catch(er => {
// try to clean up, then fail with the initial error
// we know that all write attempts are finished at this point
return lateReject(files.map(file => rimraf(file)))
.catch(er => {
console.error('failed to clean up, youre on your own i guess', er)
})
.then(() => {
// fail with the original error
throw er
})
})
}
lateReject([array, of, promises])
- Resolve all the promises,
returning a promise that rejects with the first error, or resolves with
the array of results, but only after all promises are settled.FAQs
Like Promise.all, but save rejections until all promises are resolved
The npm package promise-all-reject-late receives a total of 1,609,944 weekly downloads. As such, promise-all-reject-late popularity was classified as popular.
We found that promise-all-reject-late demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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Streamline your login process and enhance security by enabling Single Sign-On (SSO) on the Socket platform, now available for all customers on the Enterprise plan, supporting 20+ identity providers.
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