Like Array.slice() but for nodejs streams
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Latest commit adf72fe Sep 9, 2014 @EvanOxfeld EvanOxfeld 1.0.0
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examples Pipe fixed length data through a stream, then end Mar 15, 2013
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slicestream.js

README.md

slice-stream Build Status

Pipe data through a stream until some fixed length is reached, then callback.

Installation

$ npm install slice-stream

Quick Example

End stream once a fixed length has been reached

var SliceStream = require('../');
var streamBuffers = require("stream-buffers");

var ss = new SliceStream({ length: 5}, function (buf, sliceEnd, extra) {
  if (!sliceEnd) {
    return this.push(buf);
  }
  this.push(buf);
  return this.push(null); //signal end of data
});

var sourceStream = new streamBuffers.ReadableStreamBuffer();
sourceStream.put("Hello World");
var writableStream = new streamBuffers.WritableStreamBuffer();

sourceStream
  .pipe(ss)
  .pipe(writableStream)
  .once('close', function () {
    var str = writableStream.getContentsAsString('utf8');
    console.log('First 5 bytes piped:', "'" + str + "'");
    sourceStream.destroy();
  });

//Output
//Piped data before pattern occurs: 'Hello'

License

MIT