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C# HttpWebRequest "Request Header" in JSON POST

I am translating a JSON API into C# Methods, and I encountered a Problem where the JSON RPC API (POST) says
All other methods require the result from authentication ( = sessionId), either per pathparameter
;jsessionid=644AFBF2C1B592B68C6B04938BD26965
or per cookie (RequestHeader)
JSESSIONID=644AFBF2C1B592B68C6B04938BD26965
My current WebRequest Method:
private async static Task<string> SendJsonAndWait(string json, string url, string sessionId) {
string result;
HttpWebRequest httpWebRequest = (HttpWebRequest)WebRequest.Create(url);
httpWebRequest.ContentType = "application/json";
httpWebRequest.Method = "POST";
using(StreamWriter streamWriter = new StreamWriter(await httpWebRequest.GetRequestStreamAsync())) {
await streamWriter.WriteAsync(json);
streamWriter.Flush();
streamWriter.Close();
}
HttpWebResponse httpResponse = (HttpWebResponse)await httpWebRequest.GetResponseAsync();
Stream responseStream = httpResponse.GetResponseStream();
if(responseStream == null)
throw new Exception("Response Stream was null!");
using(StreamReader streamReader = new StreamReader(responseStream)) {
result = await streamReader.ReadToEndAsync();
}
return result;
}
How do I add the JSESSIONID Parameter to my WebRequest? I am not very familiar with WebRequests, please explain briefly!
Thank you!

Use Cookies.
Your Case would look like this;
private async static Task<string> SendJsonAndWait(string json, string url, string sessionId) {
Uri uri = new Uri(url);
string result;
HttpWebRequest httpWebRequest = (HttpWebRequest)WebRequest.Create(url);
httpWebRequest.ContentType = "application/json";
httpWebRequest.Method = "POST";
//Add the JSESSIONID Cookie
if(httpWebRequest.CookieContainer == null)
httpWebRequest.CookieContainer = new CookieContainer();
if(!string.IsNullOrWhiteSpace(sessionId))
httpWebRequest.CookieContainer.Add(new Cookie("JSESSIONID", sessionId, "/", uri.Host));
using(StreamWriter streamWriter = new StreamWriter(await httpWebRequest.GetRequestStreamAsync())) {
await streamWriter.WriteAsync(json);
streamWriter.Flush();
streamWriter.Close();
}
HttpWebResponse httpResponse = (HttpWebResponse)await httpWebRequest.GetResponseAsync();
Stream responseStream = httpResponse.GetResponseStream();
if(responseStream == null)
throw new Exception("Response Stream was null!");
using(StreamReader streamReader = new StreamReader(responseStream)) {
result = await streamReader.ReadToEndAsync();
}
return result;
}

You can add the token directly to your URL :
HttpWebRequest httpWebRequest = (HttpWebRequest)WebRequest.Create($"{url}?jsessionid={sessionId}");
Or in the headers :
HttpWebRequest httpWebRequest = (HttpWebRequest)WebRequest.Create({url);
httpWebRequest.Headers["JSESSIONID"] = sessionId;

HttpWebRequest in wpf

im making an app in wpf, which uses a restful api, from sharefile im making the autorisation
so far i have this
private void Button_Click_1(object sender, RoutedEventArgs e)
{
Uri uri = new Uri("https://secure.sharefile.com/oauth/authorize");
HttpWebRequest request = WebRequest.CreateHttp(uri);
shareFileWebView.Navigate(uri);
request.Method = "POST";
shareFileWebView. // but i supose to get something from here
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
Console.WriteLine(response.StatusCode);
JObject token = null;
using (var reader = new StreamReader(response.GetResponseStream()))
{
string body = reader.ReadToEnd();
token = JObject.Parse(body);
}
OAuth2Token _tokene =new OAuth2Token(token);
}
i need to get that token but how can i get from the webbrowser? in the webr browser the user fills his accounts data, any ideas??

Does this link give you what you need?
http://api.sharefile.com/rest/api-key.aspx

Http request with body ( for example send image ) :
public string httpRequest(string url,byte[] image)
{
try
{
var request = (HttpWebRequest)WebRequest.Create(url);
request.Method = "Post";
request.ContentType = "multipart/form-data";
request.ContentLength = image.Length;
using (Stream postStream = request.GetRequestStream())
{
postStream.Write(image, 0, image.Length);
postStream.Close();
WebResponse response = request.GetResponse();
var responseString = new StreamReader(response.GetResponseStream()).ReadToEnd();
if (!string.IsNullOrEmpty(responseString))
return responseString;
return null;
}
}
catch (Exception ex)
{
return ex.Message;
}
}
or :
public string RunCommand()
{
ServicePointManager.ServerCertificateValidationCallback += (sender, cert, chain, sslPolicyErrors) => true;
var request = (HttpWebRequest)WebRequest.Create("url");
var response = (HttpWebResponse)request.GetResponse();
var responseString = new StreamReader(response.GetResponseStream()).ReadToEnd();
response.Close();
return responseString;
}

How can be POST Audio file and get response WP8 C#

i'm trying to POST audio file to my Web Service and get Response from Server. I search on Google but no answer for Windows Phone 8. So please help me.
Update 1 Here my code to try Upload Audio file but have error on server
byte[] buffer;
void Upload(Stream fileStream)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(new Uri("http://localhost:11111/api/SpeechRecognition?dataType=json"));
request.Method = "POST";
request.ContentType = "multipart/form-data";
request.UseDefaultCredentials = true;
buffer = new byte[(int)fileStream.Length];
request.BeginGetRequestStream(new AsyncCallback(ReadCallback), request);
}
private void ReadCallback(IAsyncResult asynchronousResult)
{
HttpWebRequest request = (HttpWebRequest)asynchronousResult.AsyncState;
// End the operation.
Stream postStream = request.EndGetRequestStream(asynchronousResult);
postStream.Write(buffer, 0, buffer.Length);
postStream.Close();
request.BeginGetResponse(new AsyncCallback(ResponseCallback), request);
}
private void ResponseCallback(IAsyncResult asynchronousResult)
{
HttpWebRequest request = (HttpWebRequest)asynchronousResult.AsyncState;
HttpWebResponse resp = (HttpWebResponse)request.EndGetResponse(asynchronousResult);
Stream streamResponse = resp.GetResponseStream();
StreamReader streamRead = new StreamReader(streamResponse);
string responseString = streamRead.ReadToEnd();
Dispatcher.BeginInvoke(new Action(() => { MessageBox.Show(responseString); }));
// Close the stream object.
streamResponse.Close();
streamRead.Close();
// Release the HttpWebResponse.
resp.Close();
}
In server ASP.NET 4.5 have error that line
await Request.Content.ReadAsMultipartAsync(provider);

Sending HTTP POST Request with XML to a web service and reading response data in C# for windows 8 phone

I a newbie at windows 8 phone development. I want to send an aync HTTP POST Request to a PHP web service with some headers and XML in the request body.
Also, I want to read the response sent back by the PHP web service.
Please guide me, how can I achieve the above two stated things.
what I have tried until now i am giving below
// Main begins program execution.
public static void SendRequest()
{
HttpWebRequest webRequest = (HttpWebRequest)HttpWebRequest.CreateHttp("http://mytestserver.com/Test.php");
webRequest.Method = "POST";
webRequest.ContentType = "text/xml";
webRequest.Headers["SOURCE"] = "WinApp";
var response = await httpRequest(webRequest);
}
public static async Task<string> httpRequest(HttpWebRequest request)
{
string received;
using (var response = (HttpWebResponse)(await Task<WebResponse>.Factory.FromAsync(request.BeginGetResponse, request.EndGetResponse, null)))
{
using (var responseStream = response.GetResponseStream())
{
using (var sr = new StreamReader(responseStream))
{
received = await sr.ReadToEndAsync();
MessageBox.Show(received.ToString());
}
}
}
return received;
}
I am able to send the request using the above code. I just need to know that how I can send the XML in the request body to my web service.

For Set a file, and receive a server Response, I use that for sending .csv files:
First I initialize a POST Request:
/// <summary>
/// Initialize the POST HTTP request.
/// </summary>
public void SentPostReport()
{
string url = "http://MyUrlPerso.com/";
Uri uri = new Uri(url);
// Create a boundary for HTTP request.
Boundary = "----------------------------" + DateTime.Now.Ticks.ToString("x");
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);
request.ContentType = "multipart/form-data; boundary=" + Boundary;
request.Method = "POST";
request.BeginGetRequestStream(new AsyncCallback(GetRequestStreamCallback), est);
allDone.WaitOne();
}
After initialized Request, I send the differents parts of my files (headers + content + footer).
/// <summary>
/// Send a File with initialized request.
/// </summary>
private void GetRequestStreamCallback(IAsyncResult asynchronousResult)
{
string contentType = "binary";
string myFileContent = "one;two;three;four;five;"; // CSV content.
HttpWebRequest request = (HttpWebRequest)asynchronousResult.AsyncState;
Stream memStream = request.EndGetRequestStream(asynchronousResult);
byte[] boundarybytes = System.Text.Encoding.UTF8.GetBytes("\r\n--" + Boundary + "\r\n");
memStream.Write(boundarybytes, 0, boundarybytes.Length);
// Send headers.
string headerTemplate = "Content-Disposition: form-data; ";
headerTemplate += "name=\"{0}\"; filename=\"{1}\"\r\nContent-Type: " + contentType + "\r\n\r\n";
string fileName = "MyFileName.csv";
string header = string.Format(headerTemplate, "file", fileName);
byte[] headerbytes = System.Text.Encoding.UTF8.GetBytes(header);
memStream.Write(headerbytes, 0, headerbytes.Length);
byte[] contentbytes = System.Text.Encoding.UTF8.GetBytes(myFileContent);
// send the content of the file.
memStream.Write(contentbytes, 0, contentbytes.Length);
// Send last boudary of the file ( the footer) for specify post request is finish.
byte[] boundarybytesend = System.Text.Encoding.UTF8.GetBytes("\r\n--" + Boundary + "--\r\n");
memStream.Write(boundarybytesend, 0, boundarybytesend.Length);
memStream.Flush();
memStream.Close();
allDone.Set();
// Start the asynchronous operation to get the response
request.BeginGetResponse(new AsyncCallback(GetResponseCallback), request);
}
And, Finnaly, I get The response server response, indicate the file is transmetted.
/// <summary>
/// Get the Response server.
/// </summary>
private static void GetResponseCallback(IAsyncResult asynchronousResult)
{
HttpWebRequest request = (HttpWebRequest)asynchronousResult.AsyncState;
try
{
HttpWebResponse response = (HttpWebResponse)request.EndGetResponse(asynchronousResult);
Stream streamResponse = response.GetResponseStream();
StreamReader streamRead = new StreamReader(streamResponse);
string responseString = streamRead.ReadToEnd(); // this is a response server.
// Close the stream object
streamResponse.Close();
streamRead.Close();
// Release the HttpWebResponse
response.Close();
}
catch (Exception ex)
{
// error.
}
}
This sample works on Windows Phone 7 and Windows Phone 8.
This is for send a .csv content. You can adapt this code for send Xml content.
Replace just
string myFileContent = "one;two;three;four;five;"; // CSV content.
string fileName = "MyFileName.csv";
by your XML
string myFileContent = "<xml><xmlnode></xmlnode></xml>"; // XML content.
string fileName = "MyFileName.xml";

If all you're looking to do is take XML you've already generated and add it to your existing request as content, you'll need to be able to write to the request stream. I don't particularly care for the stock model of getting the request stream, so I'd recommend the following extension to make your life a little easier:
public static class Extensions
{
public static System.Threading.Tasks.Task<System.IO.Stream> GetRequestStreamAsync(this System.Net.HttpWebRequest wr)
{
if (wr.ContentLength < 0)
{
throw new InvalidOperationException("The ContentLength property of the HttpWebRequest must first be set to the length of the content to be written to the stream.");
}
var tcs = new System.Threading.Tasks.TaskCompletionSource<System.IO.Stream>();
wr.BeginGetRequestStream((result) =>
{
var source = (System.Net.HttpWebRequest)result.AsyncState;
tcs.TrySetResult(source.EndGetRequestStream(result));
}, wr);
return tcs.Task;
}
}
From here, augment your SendRequest method:
public static void SendRequest(string myXml)
{
HttpWebRequest webRequest = (HttpWebRequest)HttpWebRequest.CreateHttp("http://mytestserver.com/Test.php");
webRequest.Method = "POST";
webRequest.Headers["SOURCE"] = "WinApp";
// Might not hurt to specify encoding here
webRequest.ContentType = "text/xml; charset=utf-8";
// ContentLength must be set before a stream may be acquired
byte[] content = System.Text.Encoding.UTF8.GetBytes(myXml);
webRequest.ContentLength = content.Length;
var reqStream = await webRequest.GetRequestStreamAsync();
reqStream.Write(content, 0, content.Length);
var response = await httpRequest(webRequest);
}
If the service you're trying to reach is a SOAP service, you could simplify this a bit more by having the IDE generate a client class for you. For more information on how to do that, check out this MSDN article. However, if the service does not have a Web Service Definition Language (WSDL) document, this approach will not be able to assist you.

You can use the HTTP Client libraries in Windows Phone 8 and use the client in the same way that Windows 8.
First, get the HTTP Client Libraries from Nuget.
And now, to perform a POST call
HttpClient client = new HttpClient();
HttpContent httpContent = new StringContent("my content: xml, json or whatever");
httpContent.Headers.Add("name", "value");
HttpResponseMessage response = await client.PostAsync("uri", httpContent);
if (response.IsSuccessStatusCode)
{
// DO SOMETHING
}
i hope this helps you :)

I have solved the problem in some other way..
class HTTPReqRes
{
private static HttpWebRequest webRequest;
public static void SendRequest()
{
webRequest = (HttpWebRequest)HttpWebRequest.CreateHttp("https://www.mydomain.com");
webRequest.Method = "PUT";
webRequest.ContentType = "text/xml; charset=utf-8";
webRequest.Headers["Header1"] = "Header1Value";
String myXml = "<Roottag><info>test</info></Roottag>";
// Convert the string into a byte array.
byte[] byteArray = Encoding.UTF8.GetBytes(myXml);
webRequest.ContentLength = byteArray.Length;
// start the asynchronous operation
webRequest.BeginGetRequestStream(new AsyncCallback(GetRequestStreamCallback), webRequest);
//webRequest.BeginGetResponse(new AsyncCallback(GetResponseCallback), webRequest);
}
private static void GetRequestStreamCallback(IAsyncResult asynchronousResult)
{
HttpWebRequest request = (HttpWebRequest)asynchronousResult.AsyncState;
// End the operation
Stream postStream = request.EndGetRequestStream(asynchronousResult);
String myXml = <Roottag><info>test</info></Roottag>";
// Convert the string into a byte array.
byte[] byteArray = Encoding.UTF8.GetBytes(myXml);
// Write to the request stream.
postStream.Write(byteArray, 0, byteArray.Length);
postStream.Close();
// Start the asynchronous operation to get the response
request.BeginGetResponse(new AsyncCallback(GetResponseCallback), request);
}
private static void GetResponseCallback(IAsyncResult asynchronousResult)
{
HttpWebRequest request = (HttpWebRequest)asynchronousResult.AsyncState;
// End the operation
HttpWebResponse response = (HttpWebResponse)request.EndGetResponse(asynchronousResult);
Stream streamResponse = response.GetResponseStream();
StreamReader streamRead = new StreamReader(streamResponse);
string responseString = streamRead.ReadToEnd();
System.Diagnostics.Debug.WriteLine(responseString);
// Close the stream object
streamResponse.Close();
streamRead.Close();
// Release the HttpWebResponse
response.Close();
}
}
This perfectly solves my problem, send an XML within the HTTP Request and in Response receive the XML from the web service.

I recommend using the RestSharp library. You can find a sample request here.

This is what I used. It's really simple, add WindowsPhonePostClient.dll to your References (if you can't, try unblock the file first by properties->unblock), then use this code:
private void Post(string YourUsername, string Password)
{
Dictionary<string, object> parameters = new Dictionary<string, object>();
parameters.Add("User", YourUsername);
parameters.Add("Password", Password);
PostClient proxy = new PostClient(parameters);
proxy.DownloadStringCompleted += proxy_UploadDownloadStringCompleted;
proxy.DownloadStringAsync(new Uri("http://mytestserver.com/Test.php",UriKind.Absolute));
}
private void proxy_UploadDownloadStringCompleted(object sender,WindowsPhonePostClient.DownloadStringCompletedEventArgs e)
{
if (e.Error == null)
MessageBox.Show(e.Result.ToString());
}

You need to create a reference to the webservice wsdl or you could try to do it manually as detailed here:
https://stackoverflow.com/a/1609427/2638872

//The below code worked for me. I receive xml response back.
private void SendDataUsingHttps()
{
WebRequest req = null;
WebResponse rsp = null;
string fileName = #"C:\Test\WPC\InvoiceXMLs\123File.xml"; string uri = "https://service.XYZ.com/service/transaction/cxml.asp";
try
{
if ((!string.IsNullOrEmpty(uri)) && (!string.IsNullOrEmpty(fileName)))
{
req = WebRequest.Create(uri);
//req.Proxy = WebProxy.GetDefaultProxy(); // Enable if using proxy
req.Method = "POST"; // Post method
req.ContentType = "text/xml"; // content type
// Wrap the request stream with a text-based writer
StreamWriter writer = new StreamWriter(req.GetRequestStream());
// Write the XML text into the stream
StreamReader reader = new StreamReader(file);
string ret = reader.ReadToEnd();
reader.Close();
writer.WriteLine(ret);
writer.Close();
// Send the data to the webserver
rsp = req.GetResponse();
HttpWebResponse hwrsp = (HttpWebResponse)rsp;
Stream streamResponse = hwrsp.GetResponseStream();
StreamReader streamRead = new StreamReader(streamResponse);
string responseString = streamRead.ReadToEnd();
rsp.Close();
}
}
catch (WebException webEx) { }
catch (Exception ex) { }
finally
{
if (req != null) req.GetRequestStream().Close();
if (rsp != null) rsp.GetResponseStream().Close();
}
}

WP7 Create helper class for easy use HttpWebRequest with POST method

Actually I have something like this:
private void createHttpRequest()
{
System.Uri myUri = new System.Uri("..url..");
HttpWebRequest myHttpRequest = (HttpWebRequest)HttpWebRequest.Create(myUri);
myHttpRequest.Method = "POST";
myHttpRequest.ContentType = "application/x-www-form-urlencoded";
myHttpRequest.BeginGetRequestStream(new AsyncCallback(GetRequestStreamCallback), myHttpRequest);
}
void GetRequestStreamCallback(IAsyncResult callbackResult)
{
HttpWebRequest myRequest = (HttpWebRequest)callbackResult.AsyncState;
// End the stream request operation
Stream postStream = myRequest.EndGetRequestStream(callbackResult);
string hash = HashHelper.createStringHash("123", "TEST", "0216");
// Create the post data
byte[] byteArray = createByteArrayFromHash(hash);
// Add the post data to the web request
postStream.Write(byteArray, 0, byteArray.Length);
postStream.Close();
// Start the web request
myRequest.BeginGetResponse(new AsyncCallback(GetResponsetStreamCallback), myRequest);
}
void GetResponsetStreamCallback(IAsyncResult callbackResult)
{
HttpWebRequest request = (HttpWebRequest)callbackResult.AsyncState;
HttpWebResponse response = (HttpWebResponse)request.EndGetResponse(callbackResult);
using (StreamReader httpWebStreamReader = new StreamReader(response.GetResponseStream()))
{
string result = httpWebStreamReader.ReadToEnd();
ApiResponse apiResponse = (ApiResponse)JsonConvert.DeserializeObject<ApiResponse>(result);
}
}
It's good, it's working but now I must use these methods in every page and just change method createByteArrayFromHash which creates request. What if I want to create helper class that can help me to do this in something about 3 lines of code in page. How would you do that? I was thinking about this way but how to add request before response? Or would you do it another way? Thanks

Yeah, it's better to use async and await. Here is an example of such a wrapper:
public async Task<string> SendRequestGetResponse(string postData, CookieContainer cookiesContainer = null)
{
var postRequest = (HttpWebRequest)WebRequest.Create(Constants.WebServiceUrl);
postRequest.ContentType = "Your content-type";
postRequest.Method = "POST";
postRequest.CookieContainer = new CookieContainer();
postRequest.CookieContainer = App.Session.Cookies;
using (var requestStream = await postRequest.GetRequestStreamAsync())
{
byte[] postDataArray = Encoding.UTF8.GetBytes(postData);
await requestStream.WriteAsync(postDataArray, 0, postDataArray.Length);
}
var postResponse = await postRequest.GetResponseAsync() as HttpWebResponse;
if (postResponse != null)
{
var postResponseStream = postResponse.GetResponseStream();
var postStreamReader = new StreamReader(postResponseStream);
// Can use cookies if you need
if (cookiesContainer == null)
{
if (!string.IsNullOrEmpty(postResponse.Headers["YourCookieHere"]))
{
var cookiesCollection = postResponse.Cookies;
// App.Session is a global object to store cookies and etc.
App.Session.Cookies.Add(new Uri(Constants.WebServiceUrl), cookiesCollection);
}
}
string response = await postStreamReader.ReadToEndAsync();
return response;
}
return null;
}
You can modify it as you wish