Postgres trigger function if statement on jsonb array

I'm trying to insert into another table if a user has a certain role. The roles are currently stored on the user object as a json array [{'type': 'ADMIN'}]

My code is as follows

BEGIN
    IF NEW.roles->'type' @> '"ADMIN"' THEN
        // INSERT INTO new_table
    END IF;
    RETURN NEW;
END;

The row never gets inserted if the role is there. Is there a way to do IF statements on jsonb?