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POUnable to POST to WCF service using Android client
 

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    <p>I have a self-hosted WCF web service running, and an Android client application. I am able to GET or retrieve data from the web service in json format, however I am unable to POST or send any data to the server.</p> <p>Below is the code from the WCF service:</p> <pre><code> [OperationContract] [WebInvoke(Method = "POST", UriTemplate = "/SetValue", RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.Wrapped)] public string SetValue(TestClass someValue) { return someValue.Something.ToString(); } [DataContract] public class TestClass { [DataMember(Name = "something")] public int Something { get; set; } } </code></pre> <p>Below is the code from the Android client:</p> <pre><code> HttpClient httpClient = new DefaultHttpClient(); HttpPost request = new HttpPost("http://xxx.xxx.x.x:8000/SetValue"); List&lt;NameValuePair&gt; params = new ArrayList&lt;NameValuePair&gt;(1); params.add(new BasicNameValuePair("something", "12345")); request.setEntity(new UrlEncodedFormEntity(params)); HttpResponse response = httpClient.execute(request); </code></pre> <p>The following is how I start the self-hosted service:</p> <pre><code> class Program { static void Main() { Uri baseAddress = new Uri("http://localhost:8000/"); using (WebServiceHost host = new WebServiceHost(typeof(ServerSideProfileService), baseAddress)) { host.AddServiceEndpoint(typeof(ServerSideProfileService), new BasicHttpBinding(), "Soap"); ServiceEndpoint endpoint = host.AddServiceEndpoint(typeof(ServerSideProfileService), new WebHttpBinding(), "Web"); endpoint.Behaviors.Add(new WebHttpBehavior()); // Open the service host, service is now listening host.Open(); } } } </code></pre> <p>I only have an app.config which just has:</p> <pre><code> &lt;?xml version="1.0"?&gt; &lt;configuration&gt; &lt;startup&gt;&lt;supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/&gt;&lt;/startup&gt;&lt;/configuration&gt; </code></pre> <p>The response I'm getting when I run httpClient.execute(request) from the Android client includes:</p> <pre><code> HTTP/1.1 400 Bad Request Request Error The server encountered an error processing the request. See server logs for more details. </code></pre> <p>And that's pretty much it. I am very new to WCF and don't know where this 'server log' would be, and am at a loss as to how to troubleshoot or debug this? (I have tried Fiddler2 but it doesn't seem to detect anything from the Android client.)</p> <p>[EDIT]</p> <p>I have also tried </p> <pre><code> JSONObject json = new JSONObject(); json.put("something", "12345"); StringEntity entity = new StringEntity(json.toString()); entity.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE, "application/json")); entity.setContentType( new BasicHeader(HTTP.CONTENT_TYPE, "application/json")); request.setEntity(entity); </code></pre> <p>which also results in the error. </p> <p>I also noticed that if I change 'SetValue' to return a constant, such as "abcd", instead of someValue.Something.ToString(), then everything works?</p>
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    1. COTry this i hope that this is very help full. [Android HTTPPost Returns Error “Method not allowed.](http://stackoverflow.com/questions/6272381/android-httppost-returns-error-method-not-allowed/6604491#6604491)
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      1. USBilal lilla
 

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