RESTful design of URLs for widgets owned by users?

REST technically should be stateless, so the more "proper" implementation would be the first way you listed.

REST technically should be stateless, so the more "proper" implementation would be the first way you listed. However, I would do things slightly differently than how you're suggesting for the first method--will the information a user gets back about a specific widget change, depending on the user? If not, you might want to try this: server.com/users/3/widgets/ (Returns all widgets for user id 3) server.com/widgets/13 (Returns widget id 13) Gets a best of both worlds.

Proper "REST-ful" implementation, but when it comes to specific widgets, the current user doesn't matter. This way, your clients could pass around queries for individual widgets more easily as well--without having to update the query themselves. If the client shouldn't have access to view that particular widget, that shouldn't be difficult to protect against with the authentication you have already.

I'm also basing this all off an assumption that the widget listing could differ from client to client--if that is not true, and all clients are going to see the same widget listing regardless, there's no reason to pass the user, so go with the second way.

I would definitely recommend the first option. If you choose the second and at some point you decide you want to allow caching then you would have to make sure that your vary header specified that the representation varies on the authorization header. This can be a pain if you use auth tokens that expire.It also means that if you ever want to allow users to see the widgets of other users, you can and the caching would still work.

I'd go with the first because that does fully specify the resource.

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