if (path.StartsWith("api/", out var apiPath))
            {
                if (apiPath.StartsWith("init", out var initParams))
                {
                   ....



        public static bool StartsWith(this string str, string prefix, out string remainder)
        {
            if (str.StartsWith(prefix))
            {
                remainder = str.Substring(prefix.Length);
                return true;
            }
            else
            {
                remainder = str;
                return false;
            }
        }