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(C#) Initialize an HTTP Request from a URLDemonstrates how to initialize an HTTP request object from a URL.
Chilkat.HttpRequest req = new Chilkat.HttpRequest(); // Loads the HTTP request object from a URL req.SetFromUrl("https://www.youtube.com/watch?v=fAZdTchQePc&t=45s"); // The verb will be "GET" Debug.WriteLine("verb = " + req.HttpVerb); // The path will be "/watch" Debug.WriteLine("path = " + req.Path); // The output of this loop will be // 0) v: fAZdTchQePc // 1) t: 45s int i; int numParams = req.NumParams; for (i = 0; i <= numParams - 1; i++) { Debug.WriteLine(Convert.ToString(i) + ") " + req.GetParamName(i) + ": " + req.GetParamValue(i)); } // View the request that would be sent if SynchronousRequest is called. // The HTTP request will be a GET that looks like this: // // GET /watch?v=fAZdTchQePc&t=45s HTTP/1.1 // Host: domain // // Note: The HOST header will automatically get filled in with the actual domain when SynchronousRequest is called. Debug.WriteLine(req.GenerateRequestText()); // We can add additional params req.AddParam("artist","Richard Bona"); req.AddParam("musicType","Jazz"); req.AddParam("festival","Estival Jazz Lugano"); req.AddParam("year","2008"); // Now examine the request that would be sent // // GET /watch?v=fAZdTchQePc&t=45s&artist=Richard%20Bona&musicType=Jazz&festival=Estival%20Jazz%20Lugano&year=2008 HTTP/1.1 // Host: domain // Debug.WriteLine(req.GenerateRequestText()); // We can remove a parameter: req.RemoveParam("t"); Debug.WriteLine(req.GenerateRequestText()); // What happens if we change the request from a GET to a POST? req.HttpVerb = "POST"; // The request will now look like this: // // POST /watch HTTP/1.1 // Host: domain // Content-Length: 93 // // v=fAZdTchQePc&artist=Richard%20Bona&musicType=Jazz&festival=Estival%20Jazz%20Lugano&year=2008 // Debug.WriteLine(req.GenerateRequestText()); // What happens if we make it a multipart/form-data? req.ContentType = "multipart/form-data"; // Now the POST looks like this: // // POST /watch HTTP/1.1 // Content-Type: multipart/form-data; boundary=------------020906020106050705030807 // Host: domain // Content-Length: 545 // // --------------020906020106050705030807 // Content-Disposition: form-data; name="v" // // fAZdTchQePc // --------------020906020106050705030807 // Content-Disposition: form-data; name="artist" // // Richard Bona // --------------020906020106050705030807 // Content-Disposition: form-data; name="musicType" // // Jazz // --------------020906020106050705030807 // Content-Disposition: form-data; name="festival" // // Estival Jazz Lugano // --------------020906020106050705030807 // Content-Disposition: form-data; name="year" // // 2008 // --------------020906020106050705030807-- Debug.WriteLine(req.GenerateRequestText()); |
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