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POWCF service with both JSON and sessions?
 

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    <p>Is it possible to have a WCF service using JSON as request and respond format to also support sessions?</p> <p>I need to secure my app, which is currently communicating with a WCF server in JSON format and authenticating per call.</p> <p>I would like to only authenticate at login, and then handle the rest of the requests in a session, but the moment I try to create such a service, I need to change my binding to either wsHttpBinding or netTCPBinding, and the moment I do that, the server no longer accepts my JSON requests. It does however accepts requests from my test client written in C# by simply using the "Add Service Reference" tool.</p> <p>Using fiddler, I found that the C# client communicates with my service via massively bloated XML.</p> <p>Here is my web.config:</p> <pre><code>&lt;?xml version="1.0"?&gt; &lt;configuration&gt; &lt;system.web&gt; &lt;!-- Set compilation debug="true" to insert debugging symbols into the compiled page. Because this affects performance, set this value to true only during development. --&gt; &lt;compilation debug="true" targetFramework="4.0"&gt; &lt;assemblies&gt; &lt;add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5cxxxxxxe089"/&gt; &lt;/assemblies&gt; &lt;/compilation&gt; &lt;!-- The &lt;authentication&gt; section enables configuration of the security authentication mode used by ASP.NET to identify an incoming user. --&gt; &lt;authentication mode="Windows"/&gt; &lt;!-- The &lt;customErrors&gt; section enables configuration of what to do if/when an unhandled error occurs during the execution of a request. Specifically, it enables developers to configure html error pages to be displayed in place of a error stack trace. &lt;customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm"&gt; &lt;error statusCode="403" redirect="NoAccess.htm" /&gt; &lt;error statusCode="404" redirect="FileNotFound.htm" /&gt; &lt;/customErrors&gt; --&gt; &lt;pages controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID"/&gt; &lt;/system.web&gt; &lt;!-- The system.webServer section is required for running ASP.NET AJAX under Internet Information Services 7.0. It is not necessary for previous version of IIS. --&gt; &lt;system.serviceModel&gt; &lt;behaviors&gt; &lt;serviceBehaviors&gt; &lt;behavior name="MobiServiceLibrary.MobiServiceBehavior"&gt; &lt;serviceMetadata httpGetEnabled="true"/&gt; &lt;serviceDebug includeExceptionDetailInFaults="true"/&gt; &lt;/behavior&gt; &lt;/serviceBehaviors&gt; &lt;!--&lt;endpointBehaviors&gt; &lt;behavior name="MobiServiceLibrary.MobiServiceBehavior"&gt; &lt;webHttp helpEnabled="true" defaultOutgoingResponseFormat="Json" automaticFormatSelectionEnabled="true"/&gt; &lt;/behavior&gt; &lt;/endpointBehaviors&gt;--&gt; &lt;/behaviors&gt; &lt;services&gt; &lt;service behaviorConfiguration="MobiServiceLibrary.MobiServiceBehavior" name="MobiServiceLibrary.MobiService"&gt; &lt;endpoint address="" binding="wsHttpBinding" contract="MobiServiceLibrary.IMobiService"&gt; &lt;identity&gt; &lt;dns value="localhost"/&gt; &lt;/identity&gt; &lt;/endpoint&gt; &lt;endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/&gt; &lt;/service&gt; &lt;/services&gt; &lt;!--&lt;serviceHostingEnvironment multipleSiteBindingsEnabled="true" minFreeMemoryPercentageToActivateService="1"&gt; &lt;/serviceHostingEnvironment&gt;--&gt; &lt;/system.serviceModel&gt; &lt;/configuration&gt; </code></pre> <p>My Login "contract":</p> <pre><code>[ServiceContract(SessionMode = SessionMode.Required)] public partial interface IMobiService { [OperationContract(IsInitiating=true)] [WebInvoke(Method = "POST", UriTemplate = "/Login", BodyStyle = WebMessageBodyStyle.Wrapped, ResponseFormat=WebMessageFormat.Json, RequestFormat=WebMessageFormat.Json)] userData login(string pUserName, string pPassword, string pDeviceType); } </code></pre> <p>My Login 'Implementation':</p> <pre><code>[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)] [ServiceBehavior(InstanceContextMode = InstanceContextMode.PerSession,AddressFilterMode=AddressFilterMode.Any)] public partial class MobiService : IMobiService { public userData login(string pUserName, string pPassword, string pDeviceType) { //Do Login } } </code></pre>
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