public String GetHTMLResponse(WebQueryObj _wr) //Debug method used for testing
{
var task = MakeAsyncRequest(_wr, "text/html");
String getValue = task.Result;
return(getValue);
}
//Makes an Asyncronous web request based on passed parameters
public static Task <string> MakeAsyncRequest(WebQueryObj _wr, string contentType)
{
/* Method: MakeAsyncRequest
* Description: Accepts the fully formed WebQueryObj and the content type
* Completes the HTTP request and returns the response
* Source: Adaptation of code provided by James Manning on May 12th 2012 here:
* https://stackoverflow.com/questions/10565090/getting-the-response-of-a-asynchronous-httpwebrequest
*/
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(_wr.url);
request.ContentType = contentType;
request.Method = _wr.method;
Task <WebResponse> task = Task.Factory.FromAsync(
request.BeginGetResponse,
asyncResult => request.EndGetResponse(asyncResult),
(object)null);
return(task.ContinueWith(t => ReadStreamFromResponse(t.Result)));
}
/* Class: SlowWebHandler
* Programmer: Harry Martin
* Dependencies:WebQueryObj
* Description: This class holds the public Web Handler methods
* designed to complete the external-accessing functions of HTTP requests
* It is prefixed 'Slow' as the async requests are made internally and will halt the program
*/
public String GetResponse(String webLocation, String type, String method = "GET")
{
/* Method: GetResponse
* Description: Accepts the URL, data type and HTTP request method
* Returns the web response in string format.
*/
//Build a web query object, which contains the URI and other HTTP request info
WebQueryObj queryObj = new WebQueryObj();
queryObj.url = webLocation;
queryObj.method = method;
queryObj.url = queryObj.url.Replace("+", "%2B"); //http accepts '+' as a space, so we replace it with the required operators
var task = MakeAsyncRequest(queryObj, type); //Make the web request
String getValue = task.Result; //Get the response value
return(getValue);
}