How to make authentication on REST service?

Question

PHP

As I understand it, the REST service should not store the state of the client.
I do not understand how then to implement authentication?
Right now I'm doing it with FOSOauthBundle,
but I think it's overkill for a simple web service.
How do you implement authentication in your projects?

Answer 1

If it’s very simple, then you give the client a token and then he uses it when he calls, and on your side you identify him by it.