autoflow-deferred

autoflow-deferred is a plugin for autoflow, the flow control rules engine, which adds integration with jQuery-style Deferred promises

For more information on autoflow the lightweight flow control rules engine: http://github.com/jeffbski/autoflow

Goals

• make it easy to use React defined functions, promise style and in this case with promises that are compatible with jQuery
• if a autoflow defined flow function is called without a callback, then a Deferred promise is returned
• if promises are passed in as input parameters, they will automatically be resolved before tasks are called

Installing

npm install autoflow-deferred

OR

Pull from github - http://github.com/jeffbski/autoflow-deferred

Example

var autoflow = require('autoflow-deferred'); // enable deferred promise integration, return autoflow
// autoflow.logEvents(); // to enable logging to stderr of flow and task events
 
function loadData(x, y, cb) {
  setTimeout(function () {
    cb(null, x * y);
  }, 10);
}
 
function loadUser(uid, cb) {
  setTimeout(function () {
    cb(null, uid + '_user');
  }, 10);
}
 
function render(user, data) {
  return user + data;
}
 
 
var fn = autoflow('myflow', 'a, b, uid, cb -> err, renderedOut',
  loadData, 'a, b, cb -> err, c',
  loadUser, 'uid, cb -> err, user',
  render, 'user, c -> renderedOut'
);
 
 
var promise = fn(2, 3, 'joe');  // calling without passing in cb
promise.then(function (renderedOut) {
  console.error('renderedOut:', renderedOut);
});

License

• MIT license

Contributors

• Author: Jeff Barczewski (@jeffbski)

Contributing

• Source code repository: http://github.com/jeffbski/autoflow-deferred

• Ideas and pull requests are encouraged - http://github.com/jeffbski/autoflow-deferred/issues

• You may contact me at @jeffbski or through github at http://github.com/jeffbski