CustomClaimHandler

This custom claim handler will add some external claims to the id token

1. Stop the server if it is already running
2. Build the project using following command mvn clean install
3. Copy the jar file org.wso2.custom.claimhandler-1.0-SNAPSHOT.jar from the target directory to <IS_HOME>/repository/components/dropins folder
4. Change the default claim handler configuration in application-authentication.xml as follows. <ClaimHandler>org.wso2.custom.claim.handler.CustomClaimHandler</ClaimHandler>
5. Start the server
6. Create custom local claim called http://test.wso2.org/claims/keplerNumber and mapped to an attribute which is available in your user store.
7. Then mapped this claims to an oidc claim.
8. Don’t forget to add the oidc claims to the registry.
9. Add a service provider by selecting the requested claim as "http://test.wso2.org/claims/keplerNumber"
10. Get an id token for this service provider
11. Pasre the id token using [1], now you could able to see the claim keplerNumber as a json attribute.

Refer [2] understand the implementations details.

[1] https://jwt.io/

[2] https://medium.com/@nilasini/sso-within-two-sps-while-using-a-custom-authenticator-and-a-custom-claim-handler-wso2is-5-3-0-bd473361ddf6