how can we know from the jwt token the userId of the user?

[sarah-geara]

Is there a way or a reverse way to know from the jwt token returned the userId of the user loggedIn ?

[pesseba]

You must use a filter to extend the plugin:

add_filter('jwt_auth_token_before_dispatch', function( $data ){
    $data['user_id'] = get_current_user_id();
    return $data;
} ,10,1);