instapromise
Promisify node style async functions by putting a .promise after them (or after the object for methods)
If you use this library then if you put .promise after a Node-style async
function, it will turn it into a function that returns a Promise instead of
taking a callback.
The original function is available as a property on the Promise generating
function (.___instapromiseOriginalFunction___).
promisify = require 'instapromise'
p = fs.readFile.promise "/tmp/hello", 'utf8'
p.then(console.log)
If you want to promisify methods, use .promise after the object and before
the method name.
promisify = require 'instapromise'
p = fs.promise.readFile "/tmp/hello", 'utf8'
p.then(console.log)
This code is based on the proxying code used in fibrous. https://github.com/goodeggs/fibrous/blob/master/src/fibrous.coffee