getAllNamedRoles returning null

I have implemented these two methods:

    async getAllUserRoles(){
        let roles = this.enforcer.getAllNamedRoles('g');
        return roles;
    }

    async getAllResourceRoles(){
        let roles = this.enforcer.getAllNamedRoles('g2');
        return roles;
    }

And some of my policies are:

g, test_role, admin
g, sub_role_test1, test_role
g, sub_role_test2, test_role
g, sub_role_test2, test_role
g, test_role_2, admin
g, user_test, just_test_role
g2, glosas, plataforma
g2, credentials, plataforma

In both methods the result is null. Is this a bug?

[hsluoyz]

@lucaslrolim getAllRoles() calls getAllNamedRoles() internally, so it proves this function works for at least for the example.

[lucaslrolim]

The error was really related to the order of my Express routes. Sorry about the mistake e thank you for the help @hsluoyz and @nodece.