Getting Http Status code number (200, 301, 404, etc.) from HttpWebRequest and HttpWebResponse

Question

I am trying to get the HTTP status code number from the HttpWebResponse object returned from a HttpWebRequest. I was hoping to get the actual numbers (200, 301,302, 404, etc.) rather than the text description. ("Ok", "MovedPermanently", etc.) Is the number buried in a property somewhere in the response object? Any ideas other than creating a big switch function? Thanks.

HttpWebRequest webRequest = (HttpWebRequest)WebRequest
                                           .Create("http://www.gooogle.com/");
webRequest.AllowAutoRedirect = false;
HttpWebResponse response = (HttpWebResponse)webRequest.GetResponse();
//Returns "MovedPermanently", not 301 which is what I want.
Console.Write(response.StatusCode.ToString());

For the opposite action: httpResponse.HTTPStatusCode = (HttpStatusCode)Enum.ToObject(typeof(HttpStatusCode), 404)) — Leandro Bardelli, May 03 '17 at 19:20

score 457 · Accepted Answer · answered Aug 25 '09 at 20:41

457

Console.Write((int)response.StatusCode);

HttpStatusCode (the type of response.StatusCode) is an enumeration where the values of the members match the HTTP status codes, e.g.

public enum HttpStatusCode
{
    ...
    Moved = 301,
    OK = 200,
    Redirect = 302,
    ...
}

answered Aug 25 '09 at 20:41

dtb

213,145
36
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431

1

but in case of "connectfailure" exception of webexception i get response as null, in that case how can i get the httpstatus code – Rusty Mar 20 '14 at 10:33
10

@rusty: If the connection failed and thus the request could not be sent and no response could be received, there won't be any http status code. – Oliver Apr 10 '14 at 11:34
4

How get **HTTP Substatus** value ? For example, _404.13 Content Length Too Large_ Reference: http://www.iis.net/configreference/system.webserver/security/requestfiltering/requestlimits – Kiquenet Apr 14 '15 at 08:57
13

Bonus: `bool success = ((int)response.StatusCode) >= 200 && ((int)response.StatusCode) < 300;` – Alain Aug 04 '15 at 23:22
15

@Alain Double bonus; bool success = response.IsSuccessStatusCode; – htxryan Sep 18 '16 at 15:03
work in asp.net core: with big "R" >> @Response.StatusCode – مهدی Jun 17 '22 at 08:49
Reason: response.ReasonPhrase – Ricko.. Oct 05 '22 at 09:27

zeldi · Answer 2 · 2011-01-15T14:48:27.463

253

You have to be careful, server responses in the range of 4xx and 5xx throw a WebException. You need to catch it, and then get status code from a WebException object:

try
{
    wResp = (HttpWebResponse)wReq.GetResponse();
    wRespStatusCode = wResp.StatusCode;
}
catch (WebException we)
{
    wRespStatusCode = ((HttpWebResponse)we.Response).StatusCode;
}

edited Jan 15 '11 at 14:48

answered Jan 15 '11 at 14:40

zeldi

4,833
3
19
18

1

I'm glad you mentioned the 4xx and 5xx because I was having issues with a program not acting properly. I should point out though that the current .NET framework will notify you of any uncaught exceptions so this is also a no-brainer. – Joel Trauger Sep 20 '16 at 16:49
As a bonus, one used to be able to decorate a method with [DebuggerNonUserCode] and the Debugger would not stop in that method when an exception is thrown. In this manner [poorly designed exceptions](https://blogs.msdn.microsoft.com/ericlippert/2008/09/10/vexing-exceptions/#comment-85105) could be wrapped and ignored. But now a [registry setting is required](https://blogs.msdn.microsoft.com/devops/2016/02/12/using-the-debuggernonusercode-attribute-in-visual-studio-2015) – crokusek Oct 11 '17 at 02:36

score 26 · Answer 3 · answered Jan 25 '16 at 14:11

As per 'dtb' you need to use HttpStatusCode, but following 'zeldi' you need to be extra careful with code responses >= 400.

This has worked for me:

HttpWebResponse response = null;
HttpStatusCode statusCode;
try
{
    response = (HttpWebResponse)request.GetResponse();
}
catch (WebException we)
{
    response = (HttpWebResponse)we.Response;
}

statusCode = response.StatusCode;
Stream dataStream = response.GetResponseStream();
StreamReader reader = new StreamReader(dataStream);
sResponse = reader.ReadToEnd();
Console.WriteLine(sResponse);
Console.WriteLine("Response Code: " + (int)statusCode + " - " + statusCode.ToString());

HttpWebResponse implements IDisposable so dealing with that can be tricky. You can use the following instead which allows you to declare "response" inside a using block: public HttpWebResponse GetSafeResponse(HttpWebRequest request) { try { return (HttpWebResponse)request.GetResponse(); } catch (WebException we) { return (HttpWebResponse)we.Response; } } — DesertFoxAZ, May 04 '20 at 19:35

score 20 · Answer 4 · answered Jan 19 '18 at 07:57

Just coerce the StatusCode to int.

var statusNumber;
try {
   response = (HttpWebResponse)request.GetResponse();
   // This will have statii from 200 to 30x
   statusNumber = (int)response.StatusCode;
}
catch (WebException we) {
    // Statii 400 to 50x will be here
    statusNumber = (int)we.Response.StatusCode;
}

score 4 · Answer 5 · answered Apr 27 '16 at 17:09

4

//Response being your httpwebresponse
Dim str_StatusCode as String = CInt(Response.StatusCode)
Console.Writeline(str_StatusCode)

answered Apr 27 '16 at 17:09

prestigious

79
4

2

This is vb.net, the OP is using C# – Kemuel Sanchez Sep 08 '17 at 14:10
2

..and I am using vb. Glad this answer was here. – Drew Dec 11 '18 at 18:26

score 0 · Answer 6 · answered Aug 12 '22 at 15:10

Here's how i am handling such a situation.

//string details = ...
//...
catch (WebException ex)
{
    HttpStatusCode statusCode = ((HttpWebResponse)ex.Response).StatusCode;
    if (statusCode == HttpStatusCode.Unauthorized)
    {
        Reconnect();
        //...
    }
    else if (statusCode == HttpStatusCode.NotFound)
    {
        FileLogger.AppendToLog("[ERROR] Not Found: " + details);
    }
    else
    {
        FileLogger.AppendToLog("[ERROR] " + ex.Message + ": " + details);
    }
}

Getting Http Status code number (200, 301, 404, etc.) from HttpWebRequest and HttpWebResponse

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