The service validates all input it receives from a client and returns a <code>422</code> (Unprocessable Entity) HTTP [[#Error_codes_and_responses|error code with a descriptive error object]].
=== Auth action ===
To give a client the possibility of verifying username and password, a pseudo-ressource is provided, the only method implemented is the GET.
==== Auth retrieval (GET) ====
===== Auth retrieval (GET) example =====