co-gate

Gates to make an async callback to a synchronized syntax. This should be used with co.

co-gate

Gate module to guard asynchronous API with a callback. It works nicely with co.

co is a great solution to remove callbacks from your apps. But you should change async apis to Thunks or Promises. co-gate protects you from complex callback syntax, but also from changing existing apis.

This module is inspired by chan. A most important difference is handling parallel async apis. co-gate will stop at yield before all callback returned and return array with multiple values.

Installation

npm install co-gate

Usage

 
// require co 
var co = require('co')
  , Gate = require('co-gate')
  , fs = require('fs');
 
 
co(function *(){
  // create gate 
  var gate = new Gate()
    , val = undefined;
 
  // just call normal apis with gate.in() as callback 
  fs.readFile("test/test1.txt", "utf-8", gate.in());
  fs.readFile("test/test2.txt", "utf-8", gate.in());
 
  try{
    // yielded 
    val = yield gate.out();
  }catch(e){
    console.log(e);
  }
 
  assert.equal(val[0], 'test1');
  assert.equal(val[1], 'test2');
 
})();
 
 

License

MIT