What is XMPP, and how can I use it within an iOS chat application?

Question

I want to create a chat client application for iPhone. I've read that the XMPP framework is one of the best to use for this. However, I haven't found much material out there on this, only the XMPPFramework on Google Code and details about it on a wiki.

Can anyone explain what XMPP is and how we can use it within our chat application? Are there any tutorials or code snippets out there that demonstrate its use?

Answer 1

The most known XMPP iOS framework is XMPPFramework. It provides a core implementation of RFC-3920 (the XMPP standard). The framework is massively parallel and thread-safe. Performance is good thanks to GCD. It comes with multiple popular extensions (XEP's).

You can find a very well written Swift tutorial to implement XMPPFramework in your application. Here is the first part and the second part

Alternative can be:

• DCXMPP but it hasn't been maintained since 2014.
• Libstrophe which is a C library. You can find an iOS version here. Same it hasn't been maintained since 2013