You are mixing clients and users... For `Client_secret_basic` you provide the clientId and clientSecret of the client your application is employing. Clients can be managed in oxTrust under `OpenId Connect > Clients`. See section 2.3 of RFC 6749 and section 2 of RFC 2617.

Thanks for the clarification. To rephrase my question, how would I configure gluu so that, when requesting an auth token via the "/oxauth/restv1/token" endpoint, I can provide custom credentials instead of "username" and "password"? ``` Current request to "/oxauth/restv1/token": I am providing: - "grant_type" - "Authorization" (Base64 encoded client_id, client_secret) - "username" - "password" - "scope" Future request to "/oxauth/restv1/token" (is this possible?): I would like to provide: - "grant_type" - "Authorization" (Base64 encoded client_id, client_secret) - custom LDAP variable "username2" - custom LDAP variable "password2" - "scope" ```

I would have to have more information about the problem context to give you a more precise answer. It is unclear what your flow is or your grant type. Nonetheless, taking into account that you are mentioning LDAP attributes I suppose you are trying to authenticate users... In that case Resource Owner Password Credentials sounds like a good match given your example (see sect 4.3 of OAuth 2.0 RFC 6749), and this [doc](https://www.gluu.org/docs/gluu-server/admin-guide/oauth2/#resource-owner-password-credentials-grant) page. To make it work with attributes different from userName and Password you will have to code an interception script to handle such custom logic. Out-of-the-box there should be a "resource_owner_password_credentials_example" in oxTrust (`Configuration > Authentication Scripts`) that serves as an example. You can find the code [here](https://github.com/GluuFederation/community-edition-setup/tree/version_4.1.0/static/extension/resource_owner_password_credentials) as well. We don't provide script development assistance for community users though. Another relevant link is [here](https://www.gluu.org/docs/gluu-server/developer-guide/tips-cust-script-pages/).