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POHow can I read the response from a web request when the Status is not 200?
 

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  1. POHow can I read the response from a web request when the Status is not 200?
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    <p>I am having difficulty getting the response text from a HTTP web request in vb.net when I get a web exception.</p> <p>This is the code I am doing it with. </p> <pre><code>Try myWebResponse = CType(request.GetResponse(), HttpWebResponse) myStreamReader = New StreamReader(myWebResponse.GetResponseStream()) ResponseText = myStreamReader.ReadToEnd If myWebResponse.StatusCode = HttpStatusCode.Accepted Or myWebResponse.StatusCode = 200 Then SendResult = True 'Sent SendStatus = 1 'message sent successfully Try Integer.TryParse(myWebResponse.Headers("Number-Of-MT-PDU"), num_MT_PDU) Catch ex As Exception End Try Else SendStatus = 2 'message processed but not sent successfully End If Catch e As WebException If (e.Status = WebExceptionStatus.ProtocolError) Then Dim response As WebResponse = e.Response Using (response) Dim httpResponse As HttpWebResponse = CType(response, HttpWebResponse) statusCode = httpResponse.StatusCode Try myStreamReader = New StreamReader(response.GetResponseStream()) Using (myStreamReader) ResponseText = myStreamReader.ReadToEnd &amp; "Status Description = " &amp; HttpWebResponse.StatusDescription End Using Catch ex As Exception Logger.LogError(Me, ex) End Try End Using </code></pre> <p>Annoyingly, the API I am contacting uses a 404 as a valid response. If I put the request in a browser some message text will be displayed. I want to be able to use that text in my program. I can not simply use the error code to determine actions as I don't think I can differentiate between a valid 404 response and an actual error.</p> <p>In the code this line</p> <pre><code>myWebResponse = CType(request.GetResponse(), HttpWebResponse) </code></pre> <p>throws an exception.</p> <p>In the exception I can get the 404 code and the description but not the response stream. It is always null. </p> <p>If I get a 200 response I get the text in the Response stream no problem. </p> <p>In the web exception response object (in Visual Studios debugger) I have checked the headers and the object values and can't find the response text anywhere. If I stick the request URL in a browser I get response text back even though it is a 404. </p> <p>The raw response in fiddler:</p> <pre class="lang-none prettyprint-override"><code>HTTP/1.1 404 Not Found Connection: close Content-Type: text/plain; charset=UTF-8 Content-Length: 35 "The response Message" </code></pre> <p>Any ideas on how I can get "The response Message" in my program? I have to use .Net on the server. </p> <p>Thanks for any help anybody can give.</p>
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    1. USMark Hurd
    1. USRuairi O'Brien
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
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    1. VO
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      1. POHow can I read the response from a web request when the Status is not 200?
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
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      1. POHow can I read the response from a web request when the Status is not 200?
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    3. VO
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      1. POHow can I read the response from a web request when the Status is not 200?
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    1. COOne thing that might provide a clue would be to use [Fiddler](http://www.fiddler2.com) to see what is actually coming back over the wire
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      1. POHow can I read the response from a web request when the Status is not 200?
      1. USAakashM
    2. COI think I had the same problem before. Can't use webclient. Hang on, let me look that up.
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      1. POHow can I read the response from a web request when the Status is not 200?
      1. USJ. Chang
    3. COI asked similar question http://stackoverflow.com/questions/9062089/how-to-ensure-that-webclient-curl-process-503-error-like-they-process-200/9093586#9093586. No answer there either.
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      1. POHow can I read the response from a web request when the Status is not 200?
      1. USJ. Chang
 

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