How should I build a good (web) API

Question

I\'m going to build an API for a web app and I\'m interested in what people can suggest as good practices.

I\'m already planning to make it versioned (version 1 can only

Answer 1

Use REST.

Read up on standards for APIs, or copy the ideas from one of the popular ones.

Be careful when authenticating users.

Start very very simple.

Build a site that uses your API (even if it's not useful) to check things work. Perhaps you could build a mobile version of the site or something that forces you to use the API in a lot of depth.