Client credentials Grant setup

To configure the go to the authorization server settings in Loginapp >> OAuth 2.0/OIDC Authorization Servers >> <some AS> >> OAuth 2.0 Grants/OIDC Flows and add an OAuth 2.0 Client Credentials Grant plugin.

Configure it as follows:

1. Use the following plugins in the list of Granted Scope Processors:
1. Plugin OAuth 2.0 Granted Scope Whitelist with allowed scopes: pisp (all other scopes are used with the Authorization Code Flow).
2. Plugin STET PSD2 OAuth 2.0 Scope Filter (no detail configuration required).
2. As Signature use the plugin JWT Access Token Private Key Signature.