Question

有人可以帮助我解决此问题。我无法从出错的地方进行调试。基本上，我已经使用Azure中的WCF中继创建了WCF Rest API WebService，以在内部部署和Azure之间建立混合连接。另外，如果我忽略任何证书验证，则该终结点适用于内部部署，因为它是自签名证书，但是在进行API调用时，在Azure中发布它时，我使用的是WCF Relay提供的base64编码的公共密钥。

WCF合同和实施：

Contract Interface

Implementation

我可以在WCF服务中成功获取“ validationToken”，并且还可以在5秒后立即返回相同的validateToken。返回后，它总是错误地显示此消息。

Postman Client For Sending HTTP Request

Error Response and no subscription created

EDIT

WCF合同

[OperationContract]
        [WebInvoke(Method = "POST", UriTemplate = "webhookForConservation?validationToken={validationToken}", 
            BodyStyle = WebMessageBodyStyle.Bare)]
        string webhookForConservation(WebhookPayload data, string validationToken);

WCF实施：

第一种返回200 OK状态代码的方法：

public string webhookForConservation(WebhookPayload data, string validationToken = "")
        {
            ServicePointManager.ServerCertificateValidationCallback = (sender, cert, chain, sslPolicyErrors) => true;
            var client = new HttpClient();
            client.DefaultRequestHeaders.Add("Accept", "text/plain");
            client.DefaultRequestHeaders.TryAddWithoutValidation("Content-Type", "application/json");
            HttpResponseMessage response = null;
            WebOperationContext ctx = WebOperationContext.Current;
            if (validationToken != null && validationToken != "")
            {
                response = client.PostAsync("http://localhost:8080/conversationWebHook/conversationSubscription?validationToken=" + validationToken, null).Result;
                var apiContent = response.Content.ReadAsStringAsync().Result;
                ctx.OutgoingResponse.StatusCode = System.Net.HttpStatusCode.OK;
                ctx.OutgoingResponse.ContentType = "text/plain";
                return apiContent;
            }
            else
            {
                StringContent strContent = new StringContent(DataContractJsonSerializerHelper.SerializeJson(data));
                strContent.Headers.ContentType = MediaTypeHeaderValue.Parse("application/json");
                response = client.PostAsync("http://localhost:8080/conversationWebHook/conversationSubscription", strContent).Result;
            }
            var result = (response != null) ? response.Content.ReadAsStringAsync().Result : "";
            ctx.OutgoingResponse.StatusCode = System.Net.HttpStatusCode.OK;
            return result;
        }

返回200个状态代码的第二种方法：

public WebFaultException<string> webhookForConservation(WebhookPayload data, string validationToken="")
        {
            ServicePointManager.ServerCertificateValidationCallback = (sender, cert, chain, sslPolicyErrors) => true;
            var client = new HttpClient();
            client.DefaultRequestHeaders.Add("Accept", "text/plain");
            client.DefaultRequestHeaders.TryAddWithoutValidation("Content-Type", "application/json");
            HttpResponseMessage response = null;
            if (validationToken != null && validationToken != "")
            {
                response = client.PostAsync("http://localhost:8080/conversationWebHook/conversationSubscription?validationToken=" + validationToken, null).Result;
                var apiContent = response.Content.ReadAsStringAsync().Result;
                return new WebFaultException<string>(apiContent, HttpStatusCode.OK);
            }
            else
            {
                StringContent strContent = new StringContent(DataContractJsonSerializerHelper.SerializeJson(data));
                strContent.Headers.ContentType = MediaTypeHeaderValue.Parse("application/json");
                response = client.PostAsync("http://localhost:8080/conversationWebHook/conversationSubscription", strContent).Result;
            }
            var result = (response != null) ? response.Content.ReadAsStringAsync().Result : "";
            return new WebFaultException<string>(result, HttpStatusCode.OK); ;
        }

从WCF服务返回200 OK响应代码后，看到相同的错误

直接通过Postman调用Relay WCF API：

标题：

预先感谢您的帮助。

Answer 1

两个问题导致WCF中继无法正常工作：

中继未将响应内容类型设置为text / plain，此问题已通过ctx.OutgoingResponse.ContentType = "text/plain"修复
中继正在将XML包装器添加到所需的响应主体中，这可以通过将返回值更改为Stream来解决。

团队对话的Webhook订阅不适用于WCF中继

1 个答案: