koa-write

koa-write

Write to koa bodies in generator style, respecting back pressure and throwing on closed sockets.

Example

var koa = require('koa');
var co = require('co');
var write = require('koa-write');
var PassThrough = require('stream').PassThrough;
var wait = require('co-wait');

var app = koa();
app.use(function(){
  var ctx = this;
  ctx.body = PassThrough();

  co(function*(){
    for (var i = 0; i < 100; i++) {
      yield write(ctx, Date.now().toString());
    }
  }, this.onerror);
});

API

write(ctx, chunk)

Write chunk to ctx.

Yields as soon as you're good to write more.

Throws when the socket is already closed, so it doesn't make sense to write more.

Why not just co-write?

co-write writes to streams and does the same http socket handling, however it expects to be passed an http response object for that to work. In the situation where you have stream.pipe(res) you'll want to write to stream, however end when res.socket ends.

Installation

$ npm install koa-write

License

MIT