How does one add custom claims to the JWT issued by the OAuth flow?

[dan]

How does one add custom claims to the JWT issued by an OAuth flow?

I'm trying to use FusionAuth to add claims required by Hasura.

[dan]

In general you are going to want to use a Lambda to populate additional claims: https://fusionauth.io/docs/v1/tech/lambdas/jwt-populate

This issue has some notes about Hasura in particular: https://github.com/FusionAuth/fusionauth-issues/issues/61