Not really new but how to add username to ID token

There have been queries about this before but could I please have clear and fairly complete example of how to add username to the ID Token in Auth grant flow with PKCE. I think I appreciate why it is not there as a default but this would be helpful to us. I don’t understand the use of namespace in the example answers, I think it’s to prevent collisions on claim name “username” as it is not a standard claim. Is that the case, so that the URL can be something idealised ? Does the namespace need to be a URL or can it be a URI ?

Hey there @david-gibbs-ig !

username isn’t a restricted claim, so you should be able to add it in an ID token without issue - A custom namespace can be a URI or URL but neither are required. For example, the following Post Login action code should add a user’s username to their ID token without defining a namespace:

exports.onExecutePostLogin = async (event, api) => {

  if (event.authorization) {
     api.idToken.setCustomClaim('username', event.user.username)

Hope this helps to clarify!

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