An Introduction to Web Sockets by Nathaniel Symer

WebSockets is an advanced technology that makes it possible to open an interactive communication session between a client and server. With this API, you can send messages to a server and receive event-driven responses without having to poll the server for a reply. In this introduction talk Nathaniel Symer will review how the protocol works, what it could be used for, and how to use it safely; including implementing a client in Objective-C.