guides/authentication.md

@@ -37,4 +37,6 @@ DjanogLDP-Account defines a view `LDPAccountLoginView`, which is a simple implem
 
 DjangoLDP-Account defines a view `RPLoginView`, and provides a url for this view at `/oidc/login/`. The view leverages an `RPLoginEndpoint` class which defines the behaviour of the relying party's login system. [source code](https://git.startinblox.com/djangoldp-packages/djangoldp-account/blob/master/djangoldp_account/endpoints/rp_login.py)
 
-The key function is `op_login_url`, which resolves the URL with which to make the authentication request. Login can be completed by providing a URL to the provider, or by providing an email or WebFinger ID. In the latter two cases, provider-discovery will be necessary (see 2.1 of the [Example Workflow](https://github.com/solid/webid-oidc-spec/blob/master/example-workflow.md))
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+The key function is `op_login_url`, which resolves the URL with which to make the authentication request. Login can be completed by providing a URL to the provider, or by providing an email or WebFinger ID. In the latter two cases, provider-discovery will be necessary (see 2.1 of the [Example Workflow](https://github.com/solid/webid-oidc-spec/blob/master/example-workflow.md))
+
+`op_login_url` configures the callback redirect to the view `RPLoginCallBackView`, which uses another class defined in `rp_login.py`, `RPLoginCallBackEndpoint`, calling the `initial_url()` function when it receives the request. Here resides the logic to perform the login
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