The remote server returned an error: (400) Bad Request.

Question

Hi guys,

    I am getting this error for the following Restful WCF Service client. When the content type is "text/xml" it is asking to change it to "application/soap+xml; charset=utf-8". When I changed to this, I am getting bad request.

        Dim content As String
        Dim Method As String = "POST"
        Dim uri As String = "http://localhost:8003/Item/ItemService.svc"
        Dim req As HttpWebRequest = TryCast(WebRequest.Create(uri), HttpWebRequest)
        req.KeepAlive = False
        req.Method = Method.ToUpper()
        Dim FilePath As String = AppDomain.CurrentDomain.BaseDirectory & "\test.xml"
        content = (File.OpenText(FilePath)).ReadToEnd()
        Dim buffer As Byte() = Encoding.ASCII.GetBytes(Content)
        req.ContentLength = buffer.Length
        req.ContentType = "application/soap+xml; charset=utf-8"
        Dim PostData As Stream = req.GetRequestStream()
        PostData.Write(buffer, 0, buffer.Length)
        PostData.Close()
        Dim resp As HttpWebResponse = TryCast(req.GetResponse(), HttpWebResponse)
        Dim enc As Encoding = System.Text.Encoding.GetEncoding(1252)
        Dim loResponseStream As New StreamReader(resp.GetResponseStream(), enc)
        Dim Response1 As String = loResponseStream.ReadToEnd()
        loResponseStream.Close()
        resp.Close()
        Response.Write(Response1)

The WCF Restful Service Interface is as follows

Imports System.ServiceModel.Web
<ServiceContract([Namespace]:="http://localhost:8003/Item/")> _
Public Interface IItemService
    <OperationContract()> _
    <WebInvoke(Method:="POST", RequestFormat:=WebMessageFormat.Xml, ResponseFormat:=WebMessageFormat.Xml, UriTemplate:="GetItemDetails")> _
    Function GetItemDetails(ByVal ItemNumber As String) As String
End Interface

The input xml for the REST Client is as follows

<GetItemDetails xmlns="http://localhost:8003/Item/">  <ItemNumber>A10001</ItemNumber></GetItemDetails>

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Regards, CPK_2011