Authentication

Auth [auth1, auth2] val :> api represents an API protected *either* by auth1 or auth2

A JSON Web Token (JWT) in the the Authorization header:

Authorization: Bearer token

Note that while the token is signed, it is not encrypted. Therefore do not keep in it any information you would not like the client to know.

JWTs are described in IETF's RFC 7519

A cookie. The content cookie itself is a JWT. Another cookie is also used, the contents of which are expected to be send back to the server in a header, for XSRF protection.

Basic Auth.

Login via a form.