What are the criteria for a good REST-ful URI?
- Short (as possible). This makes them easy to write down or spell or remember.
- Hackable ‘up the tree’. The user should be able to remove the leaf path and get an expected page back. e.g. http://example.com/cars/alfa-romeos/gt you could remove the gt bit and expect to get back all the alfa-romeos.
- Meaningful. Describes the resource. I should have a hint at the type of resource I am looking at (a blog post, or a conversation). Ideally I would have a clue about the actual content of the URI (e.g. a uri like uri-design-essay)
- Predictable. Human-guessable. If your URLs are meaningful they may also be predictable. If your users understand them and can predict what a url for a given resource is then may be able to go ‘straight there’ without having to find a hyperlink on a page. If your URIs are predictable, then your developers will argue less over what should be used for new resource types.