Passing email address in custom token

Question

I have simple backend that can register users and generate jwt's using the firebase-admin package.

When I login with this custom token in firebase console -> authentication the email address is not set. Is there a way to be able to see the email address from there?

Answer 1

You can use the updateUser() method to update the user's email address (detailed docs here):

admin.auth().updateUser(uid, {
  email: "modifiedUser@example.com"
})
  .then(function(userRecord) {
    // See the UserRecord reference doc for the contents of userRecord.
    console.log("Successfully updated user", userRecord.toJSON());
  })
  .catch(function(error) {
    console.log("Error updating user:", error);
  });