Create And test WCF Service

1>Create a simple WCF service

 

2>Now Change the service name to the desired service name[Find and replace old service Name with new one]

3>Add the Endpoint of REST & SOAP like following

<endpoint address="REST" behaviorconfiguration="webHttp" binding="webHttpBinding" bindingnamespace="http://localhost/MyService" contract="TestWcfService.IMyService"> <endpoint address="SOAP" binding="basicHttpBinding" bindingnamespace="http://localhost/MyService" contract="TestWcfService.IMyService">

4>Add the host address.

Host address should be=> http://Domain Name/Service Virtual Directory\n EX:http://localhost/MyService

<host> <baseAddresses> <add baseAddress="http://localhost/MyService"/> </baseAddresses> </host>

5>Now addd the EndPoint behaviors for webHttp

<endpointBehaviors> <behavior name="webHttp"> <webHttp /> </behavior> </endpointBehaviors>

6>Now add a Service Method in the interface

[OperationContract] [WebInvoke(Method = "POST", ResponseFormat = WebMessageFormat.Xml, RequestFormat = WebMessageFormat.Xml, BodyStyle = WebMessageBodyStyle.Bare, UriTemplate = "MyAction")] ResponseData MyLog(RequestData requestData);

Note:Add the "System.ServiceModel.Web" As reference

7>Inherit the service method and defined it in the following way

public ResponseData MyLog(RequestData requestData) { ResponseData responseData = new ResponseData(); XDocument xDoc = new XDocument(); try { xDoc.Add(new XElement("my_log")); xDoc.Element("my_log").Add ( new XElement("My_Log_Output", new XElement("StatusCode", "Status Code"), new XElement("StatusMessage", "Status Message"), new XElement("requestStatus", "Request Status") ) ); } catch (Exception ex) { } responseData.OutputXml = xDoc.ToString(); return responseData; }

8>Create a virtual directory say "MyService" and specify the virtual directory path to the WCF Service path

9>Right Click on the WCF Service and Click on Properties. Here Start URL Should be :

http://domain name/Service Virtual Directory/SVC file name/EndPoint Name/URITemplate Name

EX:http://localhost/MyService/MyService.svc/REST/MyAction

9>Specify IIS Home directory path to the WCF Service path

10>So WCF service is now hosted in IIS

11>Now to test the service we need to create a console application

We can call the service asynchronously as well as synchronously

To call the service Synchronously we need to do the following things

HttpWebRequest req = null; XElement outputXml; string rc; try { string urlpath = @"E:\Domain\Dotnet\Version3.5\HomeRND\HomeRND\XML\UsageLog.xml"; XDocument objDocument = XDocument.Load(urlpath); string clientId = "5dVfrawrrwarweraJh"; string input = objDocument.ToString(); string url = "http://localhost/MyService/MyService.svc/REST/MyAction"; //create the web request req = (HttpWebRequest)WebRequest.Create(url); req.Credentials = CredentialCache.DefaultNetworkCredentials; req.Method = "POST"; req.ContentType = "application/xml; charset=utf-8"; req.Timeout = 30000; req.Headers.Add("RESTAction", url); //create the request xml in required format. Add the input xml as string in input-xml XElement xInput = new XElement("request-data", new XElement("input-xml", input), new XElement("client-id", clientId)); string sXML = xInput.ToString(); req.ContentLength = sXML.Length; StreamWriter sw = new StreamWriter(req.GetRequestStream()); sw.Write(sXML); sw.Close(); using (HttpWebResponse response = (HttpWebResponse)req.GetResponse()) { //Get the response back StreamReader sr = new StreamReader(response.GetResponseStream()); rc = sr.ReadToEnd(); sr.Close(); sr.Dispose(); response.Close(); outputXml = XElement.Parse(rc); //check if outputxml contains status code != 0 //then throw application exception } } catch (Exception ex) { throw ex; } Console.WriteLine("OutPut :" + outputXml);

To Call the service Asynchronously we need to do the following things

string urlpath = @"E:\Domain\Dotnet\Version3.5\HomeRND\HomeRND\XML\UsageLog.xml"; XDocument objDocument = XDocument.Load(urlpath); string inputMsg = objDocument.ToString(); string URL = "http://localhost/MyService/MyService.svc/REST/MyAction"; var client = new RestSharp.RestClient(); var request = new RestSharp.RestRequest(URL, RestSharp.Method.POST); //ServicePointManager.ServerCertificateValidationCallback += (s, certificate, chain, sslPolicyErrors)=>true; string clientId = "5dVyrdytryrySaJysrh"; XElement xInput = new XElement("request-data", new XElement("input-xml", inputMsg), new XElement("client-id", clientId)); string body = xInput.ToString(SaveOptions.DisableFormatting); request.AddParameter("text/xml", body, RestSharp.ParameterType.RequestBody); request.Credentials = CredentialCache.DefaultNetworkCredentials; request.AddHeader("RESTAction", URL); request.Timeout = 30000; //Asynchronous Service Call With Output client.ExecuteAsync(request, response => { Console.WriteLine("Get Response"); Console.WriteLine(response.Content); }); //Synchronous service call without output. //RestSharp.RestResponse response = (RestSharp.RestResponse)client.Execute(request); //string res = response.Content.ToString(); Console.WriteLine("After Calling Service");

How to Host A WCF Service in IIS server

1>Create A WCF service and set the IIS home directory as the service path

2>Specify the start up url in the IIS location as

http://domain name/Service Virtual Directory/SVC file name/EndPoint Name/URITemplate Name

EX:http://localhost/MyService/MyService.svc/REST/MyAction

3>Create virtual directory and specify the service path as it's path

4>Add the host location in the config file

<host> <baseAddresses> <add baseAddress="http://localhost/MyService"/> </baseAddresses> </host>

Note:Here MyService is the created service virtual directory

Service Tag Under <system.serviceModel>

<services> <service behaviorConfiguration="TestWcfService.MyServiceBehavior" name="TestWcfService.MyService"> <endpoint address="REST" behaviorConfiguration="webHttp" binding="webHttpBinding" bindingNamespace="http://localhost/MyService" contract="TestWcfService.IMyService"/> <endpoint address="SOAP" binding="basicHttpBinding" bindingNamespace="http://localhost/MyService" contract="TestWcfService.IMyService"/> <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/> <host> <baseAddresses> <add baseAddress="http://localhost/MyService"/> </baseAddresses> </host> </service> </services>

Behavior Tag Under <system.serviceModel>

<behaviors> <serviceBehaviors> <behavior name="WcfService.MyServiceBehavior"> <serviceMetadata httpGetEnabled="true"/> <serviceDebug includeExceptionDetailInFaults="false"/> </behavior> </serviceBehaviors> <endpointBehaviors> <behavior name="webHttp"> <webHttp /> </behavior> </endpointBehaviors> </behaviors>

REST SERVICE ERROR

1>The remote server return an error method not allowed

Sol:This error is generated because of wrong way of method request.Suppose WCF service accept POST request but client request the service method with GET

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

Sol:This error is generated because of wrong type/parameter request.Also if from service end if any error occur then also we get this type of error

How to debugg WCF Service

i)TO debug the WCF service first, we need to host it in IIS

ii)Run the application from where WCF service is consumed.

iii)From Editor navigate to Debugg=>Attach The Process=>Attach the WCF service Process or attach the aspnet_wp.exe

iv)Keep the break point in appropriate position and to go throught the break point press F5