Transform sync, async or generator function to Stream. Correctly handle errors and optional arguments.
npm i callback2stream --save
For more use-cases see the tests
const callback2stream = require('callback2stream')Create a stream from sync, async or generator function.
Params
fn{Function}: Any kind of function.opts{Object}: Directly passed to through2 from promise2stream.returns{Function}: That when executed, returns transform stream, coming from promise2stream, using through2.
Example
var fs = require('fs')
var cb2stream = require('callback2stream')
var readFileStream = cb2stream(fs.readFile)
var stream = readFileStream('package.json', 'utf8')
stream
.on('data', function (val) {
var json = JSON.parse(val)
console.log(json.name) // => 'callback2stream'
})
.once('error', console.error)
.once('end', function () {
console.log('reading finished')
})
// you also have access to the
// contents with promise
stream.promise
.then(JSON.parse, console.error)
.then(function (val) {
console.log(val.name) // => 'callback2stream'
}, console.error)
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- relike: Simple promisify a callback-style function with sane defaults. Support promisify-ing sync functions. | homepage
- stream-from-promise: Create streams from promises | homepage
- stream-to-promise: Convert streams (readable or writable) to promises | homepage
- through2: A tiny wrapper around Node streams2 Transform to avoid explicit subclassing noise | homepage
- thunk2promise: Transform or convert thunk to Bluebird Promise. | homepage
- value2stream: Transform any value to stream. Create stream from any value - string,… more | homepage
Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.
But before doing anything, please read the CONTRIBUTING.md guidelines.
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