当我尝试调用 outlook restful api 时收到 "An action can only be invoked as a 'POST' request"

Question

目前正在使用 outlook api，虽然很辛苦，但我通常使用通过 Nuget 获取的 outlook 库；我已达到无法接受活动邀请的限制。因此，我着手 restful 向前景 api 发出呼吁。但是，当我打电话时，我收到以下消息 {"error":{"code":"InvalidMethod","message":"An action can only be invoked as a 'POST' request."}}称呼。

错误代码

 class Program
    {
        static void Main(string[] args)
        {
                var testAccept = ExecuteClientCall.AcceptEvent().Result; 
        }

 public static async Task<bool> AcceptEvent()
        {
            AuthenticationContext authenticationContext = new AuthenticationContext(CrmPrototype.Helpers.AuthHelper.devTenant);
            try
            {
                var token = await GetTokenHelperAsync(authenticationContext, CrmPrototype.Helpers.AuthHelper.OutlookAuthenticationEndpoint);
                string requestUrl = "https://outlook.office.com/api/v2.0/Users/***@nowwhere.com/events('AAQkAGZiNDQxZTVkLWQzZjEtNDdjNy04OTc4LTM4NmNjM2JiOTRjNAAQAFpV0CnWR0FIpWFYRtszPHU=')/accept";

                HttpClient hc = new HttpClient();
                hc.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", token);

                var method = new HttpMethod("POST");

                var request = new HttpRequestMessage(method, requestUrl)
                {
                    Content = new StringContent("{SendResponse: true}", Encoding.UTF8, "application/json")
                };

                HttpResponseMessage hrm = await hc.GetAsync(requestUrl);



                if (hrm.IsSuccessStatusCode)
                {
                    string jsonresult = await hrm.Content.ReadAsStringAsync();
                    var stophere = 0;

                }
                else
                {
                    return false;
                }
                return true;
            }

            catch (Exception ex)
            {
                throw;
            }
        }

    }

Answer 1

可能是你打电话的原因

hc.GetAsync(requestUrl);

医生说这个方法：

Sends a GET request to the specified Uri as an asynchronous operation.

尝试：

PostAsync(Uri, HttpContent)

https://msdn.microsoft.com/en-us/library/system.net.http.httpclient(v=vs.118).aspx

希望对您有所帮助。

Answer 2

您的变量 request 包含一个您创建的 HttpRequestMessage 对象，但您的代码目前未对其执行任何操作。

尝试替换行

                HttpResponseMessage hrm = await hc.GetAsync(requestUrl);

（正如另一个答案所指出的，提出了 GET 请求），

                HttpResponseMessage hrm = await hc.SendAsync(request);

当我尝试调用 outlook restful api 时收到 "An action can only be invoked as a 'POST' request"

Getting "An action can only be invoked as a 'POST' request" when I am trying to call outlook restful api

c#

rest

office365

outlook-api