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(C#) Asynchronous HTTP SOAP 1.2 Request and Response using POSTDemonstrates a working asynchronous SOAP 1.2 request and response using POST with a live server. You may try running this example with the URLs and data provided. See http://wsf.cdyne.com/WeatherWS/Weather.asmx?op=GetCityWeatherByZIP for details. Note: This example is correct in theory, but no longer works for live testing because the SOAP service provider (cdyne.com) has made changes or discontinued the free service.
// TaskCompleted callback method. private void http_OnTaskCompleted(object sender, Chilkat.TaskCompletedEventArgs args) { Chilkat.Task completedTask = args.Task; // A finished task could be one that was canceled, aborted, or truly finished. // If the task was "canceled", it was canceled prior to actually starting. This could // happen if the task was canceled while waiting in a thread pool queue to be scheduled by Chilkat's // background thread pool scheduler. // If the task was "aborted", it indicates that it was canceled while running in a background thread. // The ResultErrorText will likely indicate that the task was aborted. // If the task "completed", then it ran to completion, but the actual success/failure of the method // is determined by the result obtained via a GetResult* method. (A "completed" task will // have a StatusInt equal to 7. If the task finished, but was not completed, then it must've // been aborted or canceled: if (completedTask.StatusInt != 7) { Debug.WriteLine("Task did not complete."); Debug.WriteLine("task status: " + completedTask.Status); return; } // The synchronous call to QuickGetObj would return an HTTP response object. To get this // response object for the async call, we instantiate a new/empty HTTP response object, // and then load it from the completed task. Chilkat.HttpResponse resp = new Chilkat.HttpResponse(); bool success = resp.LoadTaskResult(completedTask); if (success != true) { Debug.WriteLine(resp.LastErrorText); return; } // Now that we have the response, we can get all of the information: Debug.WriteLine("status code: " + Convert.ToString(resp.StatusCode)); Debug.WriteLine("response header: " + resp.Header); Chilkat.Xml xmlResponse = new Chilkat.Xml(); xmlResponse.LoadXml(resp.BodyStr); Debug.WriteLine(xmlResponse.GetXml()); } private void ChilkatExample() { // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. Chilkat.Http http = new Chilkat.Http(); http.OnTaskCompleted += http_OnTaskCompleted; bool success; Chilkat.Xml soapXml = new Chilkat.Xml(); soapXml.Tag = "soap12:Envelope"; soapXml.AddAttribute("xmlns:xsi","http://www.w3.org/2001/XMLSchema-instance"); soapXml.AddAttribute("xmlns:xsd","http://www.w3.org/2001/XMLSchema"); soapXml.AddAttribute("xmlns:soap12","http://www.w3.org/2003/05/soap-envelope"); soapXml.NewChild2("soap12:Body",""); soapXml.GetChild2(0); soapXml.NewChild2("GetCityWeatherByZIP",""); soapXml.GetChild2(0); soapXml.AddAttribute("xmlns","http://ws.cdyne.com/WeatherWS/"); soapXml.NewChild2("ZIP","60187"); soapXml.GetRoot2(); Debug.WriteLine(soapXml.GetXml()); Chilkat.HttpRequest req = new Chilkat.HttpRequest(); req.HttpVerb = "POST"; req.SendCharset = false; req.AddHeader("Content-Type","application/soap+xml; charset=utf-8"); req.AddHeader("SOAPAction","http://ws.cdyne.com/WeatherWS/GetCityWeatherByZIP"); req.Path = "/WeatherWS/Weather.asmx"; req.LoadBodyFromString(soapXml.GetXml(),"utf-8"); http.FollowRedirects = true; Chilkat.Task task = http.SynchronousRequestAsync("wsf.cdyne.com",80,false,req); if (http.LastMethodSuccess != true) { Debug.WriteLine(http.LastErrorText); return; } // Schedule the task for running on the thread pool. This changes the task's state // from Inert to Live. success = task.Run(); if (success != true) { Debug.WriteLine(task.LastErrorText); return; } // The application is now free to do anything else // while the HTTP request is in progress. When the task // is completed, the TaskCompleted method is called. // ------------------------------------------------------------------------------- // The following is a general note that applies to all programming languages: // ------------------------------------------------------------------------------- // NOTE: This is very important: The TaskCompleted callback runs in the background thread. // (All callbacks from an async task, such as AbortCheck, PercentDone, ProgressInfo, etc. are in the background thread.) // An application that uses TaskCompleted must be very careful. // For example, user interface elements (such as labels, text boxes, etc.) may not be directly // accessible from a background thread, and could crash the application if directly accessed. Also, attempting to debug // code running in a background thread from an IDE, especially an older IDE (such as VB6) is likely to crash the IDE. } |
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