Security News
tea.xyz Spam Plagues npm and RubyGems Package Registries
Tea.xyz, a crypto project aimed at rewarding open source contributions, is once again facing backlash due to an influx of spam packages flooding public package registries.
thread-stream
Advanced tools
Readme
A streaming way to send data to a Node.js Worker Thread.
npm i thread-stream
'use strict'
const ThreadStream = require('thread-stream')
const { join } = require('path')
const stream = new ThreadStream({
filename: join(__dirname, 'worker.js'),
workerData: { dest },
workerOpts: {}, // Other options to be passed to Worker
sync: false, // default
})
stream.write('hello')
// Asynchronous flushing
stream.flush(function () {
stream.write(' ')
stream.write('world')
// Synchronous flushing
stream.flushSync()
stream.end()
})
In worker.js
:
'use strict'
const fs = require('fs')
const { once } = require('events')
async function run (opts) {
const stream = fs.createWriteStream(opts.dest)
await once(stream, 'open')
return stream
}
module.exports = run
Make sure that the stream emits 'close'
when the stream completes.
This can usually be achieved by passing the autoDestroy: true
flag your stream classes.
The underlining worker is automatically closed if the stream is garbage collected.
You may use this module within compatible external modules, that exports the worker.js
interface.
const ThreadStream = require('thread-stream')
const modulePath = require.resolve('pino-elasticsearch')
const stream = new ThreadStream({
filename: modulePath,
workerData: { node: 'http://localhost:9200' }
})
stream.write('log to elasticsearch!')
stream.flushSync()
stream.end()
This module works with yarn
in PnP (plug'n play) mode too!
You can emit events on the ThreadStream from your worker using worker.parentPort.postMessage()
.
The message (JSON object) must have the following data structure:
parentPort.postMessage({
code: 'EVENT',
name: 'eventName',
args: ['list', 'of', 'args', 123, new Error('Boom')]
})
On your ThreadStream, you can add a listener function for this event name:
const stream = new ThreadStream({
filename: join(__dirname, 'worker.js'),
workerData: {},
})
stream.on('eventName', function (a, b, c, n, err) {
console.log('received:', a, b, c, n, err) // received: list of args 123 Error: Boom
})
MIT
FAQs
A streaming way to send data to a Node.js Worker Thread
The npm package thread-stream receives a total of 3,953,667 weekly downloads. As such, thread-stream popularity was classified as popular.
We found that thread-stream demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 3 open source maintainers collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Security News
Tea.xyz, a crypto project aimed at rewarding open source contributions, is once again facing backlash due to an influx of spam packages flooding public package registries.
Security News
As cyber threats become more autonomous, AI-powered defenses are crucial for businesses to stay ahead of attackers who can exploit software vulnerabilities at scale.
Security News
UnitedHealth Group disclosed that the ransomware attack on Change Healthcare compromised protected health information for millions in the U.S., with estimated costs to the company expected to reach $1 billion.