问使用微软帐户登录Azure AD V2应用程序

EN

        public async Task<string> GetAccessToken(string code)
        {
            string token = "", refresh_token = "";            

            ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
            var keyValuePairs = new List<KeyValuePair<string, string>>();
            keyValuePairs.Add(new KeyValuePair<string, string>("scope", AppsConfiguration.idaScope));
            keyValuePairs.Add(new KeyValuePair<string, string>("client_id", AppsConfiguration.idaClient_id));
            keyValuePairs.Add(new KeyValuePair<string, string>("client_secret", AppsConfiguration.idaClient_secret));
            keyValuePairs.Add(new KeyValuePair<string, string>("grant_type", AppsConfiguration.grant_type_authorization_code));
            keyValuePairs.Add(new KeyValuePair<string, string>("code", code));
            keyValuePairs.Add(new KeyValuePair<string, string>("redirect_uri", AppsConfiguration.idaRedirect_uri));
            var client1 = new HttpClient();
            var req = new HttpRequestMessage(HttpMethod.Post, AppsConfiguration.idaTokenEndpoint) { Content = new FormUrlEncodedContent(keyValuePairs) };

            using (var res = client1.SendAsync(req).Result)
            {
                if (res.IsSuccessStatusCode)
                {
                    var jsonresult = JObject.Parse(await res.Content.ReadAsStringAsync());
                    token = (string)jsonresult["access_token"];
                    refresh_token = (string)jsonresult["refresh_token"];    
                }
            }

            return token;
        }