CODEWITHSUNDEEP
c#
Uday
Uday

Reputation: 31

Getting error " The remote server returned an error: (400) Bad Request." on line WebResponse response = request.GetResponse();

//Create a request using a URL that can receive a post.
WebRequest request = WebRequest.Create("https://go.urbanairship.com/api/push/");
request.Credentials = new NetworkCredential("pvYMExk3QIO7p2YUs6BBkg", "rO3DsucETRadbbfxHkd6qw");

// Set the Method property of the request to POST.
request.Method = "POST";

// Create POST data and convert it to a byte array.
//WRITE JSON DATA TO VARIABLE D
string postData = "{\"aps\": {\"badge\": 1, \"alert\": \"Hello from Urban Airship!\"}, \"device_tokens\": [\"6334c016fc643baa340eca25bc661d15055a07b475e9a6108f3f644b15dd05ac\"]}";
byte[] byteArray = Encoding.UTF8.GetBytes(postData);

// Set the ContentType property of the WebRequest.
request.ContentType = "application/json";

// Set the ContentLength property of the WebRequest.
request.ContentLength = byteArray.Length;

// Get the request stream.
using (Stream dataStream = request.GetRequestStream())
{
    // Write the data to the request stream.
    dataStream.Write(byteArray, 0, byteArray.Length);
}

// Get the response.
WebResponse response = request.GetResponse();

//Error "The remote server returned an error: (400) Bad Request"
// Display the status.
Console.WriteLine(((HttpWebResponse)response).StatusDescription);

// Get the stream containing content returned by the server.
using (Stream dataStream = response.GetResponseStream())
{
    // Open the stream using a StreamReader for easy access.
    using (var reader = new StreamReader(dataStream))
    {
        // Read the content.
        string responseFromServer = reader.ReadToEnd();

        // Display the content.
        Console.WriteLine(responseFromServer);

        response.Close();
    }
}

Upvotes: 3

Views: 9794

Answers (3)

Sith2021
Sith2021

Reputation: 3716

It is a valid question...

First. Not use hard code for build the json string, use JavaScriptSerializer

var json = new JavaScriptSerializer().Serialize(yourObject);

Second. For single parameter, use ... BodyStyle = WebMessageBodyStyle.Bare, ... insted of BodyStyle = WebMessageBodyStyle.WrappedRequest,

(I spend a few hours with a similar problem)

Upvotes: 0

Derreck Dean
Derreck Dean

Reputation: 3766

I have experienced a similar problem to what he is getting.

When the exception is thrown calling GetResponse(), it is a WebException. Cast it as such, then check out the response stream. Yes, the content length is -1, but ignore that.

        catch (Exception ex)
        {
            //byte[] buffer = new byte[999999];
            WebException wex = (WebException)ex;
            var s = wex.Response.GetResponseStream();
            string ss = "";
            int lastNum = 0;
            do
            {
                lastNum = s.ReadByte();
                ss += (char)lastNum;
            } while (lastNum != -1);
            s.Close();
            s = null;

            ErrorHasOccurred(new Exception("An error has occurred sending the notification to Urban Airship. Please see the InnerException for details. Please note that, for sending messages, the master password is required (instead of the regular password). ERROR: " + ss, ex));
        }

Then just breakpoint right where I have ErrorHasOccurred and read the contents of the ss variable. It will tell you the actual error that Urban Airship returns.

Upvotes: 10

Philip Rieck
Philip Rieck

Reputation: 32568

What is your question? The server is saying your request is bad. Use Fiddler if you're not sure what you are actually sending to the server, then fix your request. Otherwise fix your server code.

Either way, this is "not a real question" fodder without some clarification.

Upvotes: 2

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