Keycloak : Retrieve custom attributes in Access Token

Keycloak is an open-source Identity and Access Management (IAM) solution aimed at modern applications and services. Keycloak provides out-of-the-box authentication and authorization services as well as advanced features like User Federation, Identity Brokering, and Social Login.

We are going to see how Keycloak gives us control, to transfer custom attributes to the applications that receive ID Tokens, Access Tokens. Keycloak provides us lot of control of what exactly goes back to the client. To demonstrate this we will configure custom…