How to decode response

Question

User-284642143 posted

	    HttpWebRequest hWR = (HttpWebRequest)WebRequest.Create(Url);
            Uri uri = new Uri(Url);

            hWR.Headers.Add(HttpRequestHeader.AcceptEncoding, "gzip, deflate, br");
            hWR.Headers.Add(HttpRequestHeader.AcceptLanguage, "en-GB,en-US;q=0.9,en;q=0.8");
			httpWebRequest.Headers.Add("Sec-Fetch-Site", "same-origin");
            httpWebRequest.Headers.Add("Sec-Fetch-Mode", "cors");
            hWR.Accept= "application/json";
            hWR.ContentType = "application/json";
            hWR.Method = "POST";
            hWR.KeepAlive = true;

            byte[] data = Encoding.UTF8.GetBytes(UsernamePassword); // I dont know if this is correct or not, Im just passing in the credentials in JSON format which contains no parameters as such

            hWR.ContentLength = data.Length; // Again i dont know if this is correct or not 

            try
            {
                using (var stream = hWR.GetRequestStream())
                {
                    using (GZipStream compressionStream = new GZipStream(stream, CompressionMode.Compress, true))
                    {
                        compressionStream.Write(data, 0, data.Length);
                    }
                }
				
                var response = (HttpWebResponse)hWR.GetResponse();

                var responseString = new StreamReader(response.GetResponseStream()).ReadToEnd();

            }
            catch (Exception ex)
            {
                
            }
        }
		
I receive no error if i have the following within the Stream code 

                    stream.Write(data, 0, data.Length);
                    stream.Flush();
                    stream.Close();
					

but the issue i come across is that the response is encoded, i can verify this by looking at the request in a web monitoring tool and decoding it, which shows the data.

So i added the GZipStream Using statement but i get a range of errors but the current one is "The base stream is not readable.\r\nParameter name: stream" or "was expecting xx content length but received xx"

How could i decode the response?

Answer 1

User-284642143 posted

Knew this would happen. Found the answer after i post the question.

Remove the Gzip compression code and add this at the start of the request

httpWebRequest.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;