Simon Willison’s Weblog

Step for Node.js. A further iteration on the attempts to make callback-based programming in Node.js easier to manage, this time making clever use of the ’this’ keyword to represent the next callback in the chain.

# 13th April 2010, 11:02 am / step, nodejs, callbacks, javascript

kriszyp’s node-promise. Another elegant approach to managing asynchronous flows in Node, including running things both in parallel and serial.

# 28th February 2010, 3:50 pm / node, javascript, callbacks, nodejs, promise

How To Node. New blog about Node.js, with a superb series of tutorials aimed at both experienced and new JavaScript developers. The stuff on managing callbacks (including running them in both series and parallel) is pretty eye-opening.

# 17th February 2010, 5:42 pm / node, javascript, callbacks, nodejs

Twisted inlineCallbacks and deferredGenerator. inlineCallbacks are a brilliant (but seemingly under-promoted) feature of Twisted which use the ability to return a value from a yield statement to make asynchronous callbacks look much more like regular sequential programming.

# 25th October 2009, 11:30 pm / python, twisted, async, callbacks, generators, yield

Cabochon event server. Written in Python (on top of SQLObject and Paste), uses JSON for messages, allows event consumers to subscribe with a callback URL.

# 2nd August 2007, 8:36 am / callbacks, python, sqlobject, paste, cabochon, events, json