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POGetting 400 http bad request error while accessing WCF rest service using GET
 

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    <p><a href="http://i.stack.imgur.com/kd7Y4.png" rel="nofollow">the Exact error is System.Net.WebException: The Remote server returned an Error: (400) Bad Request. at system.Net.HttpWebRequest.GetResponse()</a>i have a WCF rest service hosted in IIS..I have created a simple WPF app with just a button..now i need to access the methods in my WCF service using get..</p> <p>This is the code For WPF</p> <pre><code>using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Windows; using System.Windows.Controls; using System.Windows.Data; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Imaging; using System.Windows.Navigation; using System.Windows.Shapes; using System.Net; using System.Runtime.Serialization; using System.Xml; namespace RestFulDemo { /// &lt;summary&gt; /// Interaction logic for MainWindow.xaml /// &lt;/summary&gt; public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); } private void RestDemo_Click(object sender, RoutedEventArgs e) { string msg=""; HttpWebResponse resp=null; //WebRequest my = WebRequest.Create(@"http://www.google.com"); //MessageBox.Show(my.ToString()); WebRequest myRequest = WebRequest.Create(@"http://localhost/REST/RestServicesSample.svc/XmlData/sad"); MessageBox.Show(myRequest.ToString()); //Provides response from a URI. myRequest.Method = "GET"; myRequest.ContentType = @"text/xml; charset=utf-8"; try { resp=myRequest.GetResponse() as HttpWebResponse; } catch (WebException c) { MessageBox.Show(c.ToString()); } if (resp.StatusCode == HttpStatusCode.OK) { XmlDocument myXMLDocument = new XmlDocument(); XmlReader myXMLReader = new XmlTextReader(resp.GetResponseStream()); myXMLDocument.Load(myXMLReader); msg= myXMLDocument.InnerText; } MessageBox.Show(msg); } } } </code></pre> <p>why do i get an error in myRequest.GetResponse()..? this is my .svc.cs file</p> <pre><code>using System.Collections.Generic; using System.Linq; using System.Runtime.Serialization; using System.ServiceModel; using System.Text; using System.ServiceModel.Web; namespace RestServices { // NOTE: You can use the "Rename" command on the "Refactor" menu to change the interface name "IRestServicesSample" in both code and config file together. [ServiceContract] public interface IRestServicesSample { [OperationContract] [WebGet] ////[WebInvoke(Method = "GET", //// ResponseFormat = WebMessageFormat.Xml, //// BodyStyle = WebMessageBodyStyle.Wrapped, //// UriTemplate = "xml/{id}")] string XmlData(string id); //void DoWork(); [OperationContract] [WebInvoke(Method = "GET", ResponseFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.Wrapped, UriTemplate = "json/{id}")] string JsonData(string id); } } </code></pre> <p>---this is the web.config file</p> <pre><code>&lt;?xml version="1.0"?&gt; &lt;configuration&gt; &lt;system.web&gt; &lt;compilation debug="true" targetFramework="4.0" /&gt; &lt;webServices&gt; &lt;protocols&gt; &lt;add name="HttpGet"/&gt; &lt;add name="HttpPost"/&gt; &lt;/protocols&gt; &lt;/webServices&gt; &lt;/system.web&gt; &lt;system.serviceModel&gt; &lt;services&gt; &lt;service name="RestServices.RestServiceSample" behaviorConfiguration="ServiceBehaviour"&gt; &lt;endpoint behaviorConfiguration="WebBehavior" binding="webHttpBinding" contract="RestServices.IRestServiceSample"&gt; &lt;/endpoint&gt; &lt;/service&gt;`enter code here` &lt;/services&gt; &lt;behaviors&gt; &lt;serviceBehaviors&gt; &lt;behavior name="ServiceBehaviour"&gt; &lt;!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment --&gt; &lt;serviceMetadata httpGetEnabled="true"/&gt; &lt;!-- To receive exception details in faults for debugging purposes, set the value below to true. Set to false before deployment to avoid disclosing exception information --&gt; &lt;serviceDebug includeExceptionDetailInFaults="false"/&gt; &lt;/behavior&gt; &lt;/serviceBehaviors&gt; &lt;endpointBehaviors&gt; &lt;behavior name="WebBehavior"&gt; &lt;webHttp/&gt; &lt;/behavior&gt; &lt;/endpointBehaviors&gt; &lt;/behaviors&gt; &lt;serviceHostingEnvironment multipleSiteBindingsEnabled="true" /&gt; &lt;/system.serviceModel&gt; &lt;system.webServer&gt; &lt;modules runAllManagedModulesForAllRequests="true"/&gt; &lt;/system.webServer&gt; &lt;/configuration&gt; </code></pre>
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    1. COPlease remember to add a RequestFormat in your OperationContract. If not the service I think defaults the request format to JSON
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