public IActionResult RequestAccessToken(string consumerKey)
        {
            var path = _client.GetSignInUrl(consumerKey);

            _logger.LogInformation(path);
            return(Redirect(path));
        }
        public async Task SignIn()
        {
            Console.WriteLine("Paste consumer key : (https://developer.tdameritrade.com/user/me/apps)");
            var consumerKey = Console.ReadLine();

            Console.WriteLine("Opening Browser. Please sign in.");
            var uri = client.GetSignInUrl(consumerKey);

            OpenBrowser(uri);
            Console.WriteLine("When complete,please input the code (code={code}) query paramater. Located inside your browser url bar.");
            var code = Console.ReadLine();
            await client.SignIn(consumerKey, code);

            Console.WriteLine($"IsSignedIn : {client.IsSignedIn}");
        }