Authentication flows
The OAuth 2.0 Framework enables third-party applications to gain access to an HTTP service.
OAuth 2.0
The OAuth 2.0 authorization framework enables a third-party application to obtain limited access to an HTTP service, either on behalf of a resource owner by orchestrating an approval interaction between the resource owner and the HTTP service, or by allowing the third-party application to obtain access on its own behalf.
There are several ways you can authenticate users with this protocol and the flows on the subsequent pages show the flow on how to do this.