Running wcf service without App.config doesn't work

Running wcf service without App.config doesn't work - c#

I create simple wcf host in console application. It doesn't work and the exception make NO SENSE:/
The exception looks really wierd:
"ContractDescription 'IFooService' has zero operations; a contract
must have at least one operation."
because, here is the code and i I have an operation:
[ServiceContract]
public interface IFooService
{
[OperationContract]
void DoNothing();
[OperationContract]
int GetFoo(int i);
}
public class FooService : IFooService
{
public void DoNothing()
{
}
public int GetFoo(int i)
{
return i + 1;
}
}
class Program
{
static void Main(string[] args)
{
try
{
string address = "http://localhost:9003/FooService";
Uri addressBase = new Uri(address);
var svcHost = new ServiceHost(typeof(FooService), addressBase);
BasicHttpBinding bHttp = new BasicHttpBinding();
Type contractType = typeof(IFooService);
ContractDescription contractDescription = new ContractDescription(contractType.Name);
contractDescription.ProtectionLevel = ProtectionLevel.None;
contractDescription.ContractType = contractType;
contractDescription.ConfigurationName = contractType.FullName;
contractDescription.SessionMode = SessionMode.NotAllowed;
svcHost.AddServiceEndpoint(new ServiceEndpoint(contractDescription, bHttp, new EndpointAddress(address)));
svcHost.Open();
Console.WriteLine("\n\nService is Running as >> " + address);
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
Console.ReadKey();
}
}
This is basically entire code. App.config is left untouched:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
</startup>
</configuration>
EDIT: A little clue, this way it works: I didn't change service or contract, but moved configuration to App.config, so changed only Main method:
App.config:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
</startup>
<system.serviceModel>
<services>
<service name="WcfDemos.ConsoleHost.FooService">
<endpoint address="http://localhost:9003/FooService" binding="basicHttpBinding"
contract="WcfDemos.ConsoleHost.IFooService" />
</service>
</services>
</system.serviceModel>
</configuration>
Main:
static void Main(string[] args)
{
try
{
string address = "http://localhost:9003/FooService";
Uri addressBase = new Uri(address);
var svcHost = new ServiceHost(typeof(FooService), addressBase);
svcHost.Open();
Console.WriteLine("\n\nService is Running as >> " + address);
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
Console.ReadKey();
}

Why do you need to use the ContractDescription? I suppose it looks for the settings in the configuration file.
You may do the following (use the AddServiceEndpoint method without ContractDescription):
static void Main(string[] args)
{
try
{
string address = "http://localhost:9003/FooService";
Uri addressBase = new Uri(address);
var svcHost = new ServiceHost(typeof(FooService), addressBase);
BasicHttpBinding bHttp = new BasicHttpBinding();
//Type contractType = typeof(IFooService);
//ContractDescription contractDescription = new ContractDescription(contractType.Name);
//contractDescription.ProtectionLevel = ProtectionLevel.None;
//contractDescription.ContractType = contractType;
//contractDescription.ConfigurationName = contractType.FullName;
//contractDescription.SessionMode = SessionMode.NotAllowed;
//svcHost.AddServiceEndpoint(new ServiceEndpoint(contractDescription, bHttp, new EndpointAddress(address)));
svcHost.AddServiceEndpoint(typeof(IFooService).ToString(), bHttp, address);
svcHost.Open();
Console.WriteLine("\n\nService is Running as >> " + address);
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
Console.ReadKey();
}
BTW here you may find some library for configuring your WCF services without app.config files: WCF NetTcpBinding Bootcamp

I believe you have to add an endpoint to the ServiceHost if you don't provide the endpoints in the config file. See the AddServiceEndpoint call:
Uri baseAddr = new Uri("http://localhost:8000/WCFService1");
ServiceHost localHost = new ServiceHost(typeof(CalculatorService), baseAddr);
try
{
localHost.AddServiceEndpoint(typeof(ICalculator), new WSHttpBinding(), "CalculatorService");
ServiceMetadataBehavior smb = new ServiceMetadataBehavior();
smb.HttpGetEnabled = true;
localHost.Description.Behaviors.Add(smb);
localHost.Open();
Console.WriteLine("Service initialized.");
Console.WriteLine("Press the ENTER key to terminate service.");
Console.WriteLine();
Console.ReadLine();
localHost.Close();
}
catch (CommunicationException ex)
{
Console.WriteLine("Oops! Exception: {0}", ex.Message);
localHost.Abort();
}
http://www.programminghelp.com/dotnet/wcf-creating-and-implementing-a-service-in-c/

The above comes from Microsoft example:
https://learn.microsoft.com/en-us/dotnet/framework/wcf/how-to-host-and-run-a-basic-wcf-service
which is a great place to start. Nonetheless ... it is still unclear what needs to be added in code to make the app.config content below redundant:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<appSettings>
<add key="aspnet:UseTaskFriendlySynchronizationContext" value="true" />
</appSettings>
<system.web>
<compilation debug="true" />
</system.web>
<!-- When deploying the service library project, the content of the config file must be added to the host's
app.config file. System.Configuration does not support config files for libraries. -->
<system.serviceModel>
<services>
<service name="GettingStartedLib.CalculatorService">
<host>
<baseAddresses>
<add baseAddress = "http://localhost:8000/GettingStarted/CalculatorService" />
</baseAddresses>
</host>
<!-- Service Endpoints -->
<!-- Unless fully qualified, address is relative to base address supplied above -->
<endpoint address="" binding="wsHttpBinding" contract="GettingStartedLib.ICalculator">
<!--
Upon deployment, the following identity element should be removed or replaced to reflect the
identity under which the deployed service runs. If removed, WCF will infer an appropriate identity
automatically.
-->
<identity>
<dns value="localhost"/>
</identity>
</endpoint>
<!-- Metadata Endpoints -->
<!-- The Metadata Exchange endpoint is used by the service to describe itself to clients. -->
<!-- This endpoint does not use a secure binding and should be secured or removed before deployment -->
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior>
<!-- To avoid disclosing metadata information,
set the values below to false before deployment -->
<serviceMetadata httpGetEnabled="True" httpsGetEnabled="True"/>
<!-- 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 -->
<serviceDebug includeExceptionDetailInFaults="False" />
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
</configuration>

Related

WCF Service fails when accessing host registry

I've been working on a wrapper for an API that will let me access it via a web service. The wrapper is a WCF service that I'm using to interface between the API and an asmx.
API---WCF---Webservice
Currently, I can get the API to work with the wrapper and the wrapper to communicate with the web service. However, any calls I make that originate from the web service to the API fail. The line that causes the failure is one that accesses a registry key on the host. My guess is that this is somehow permission related, but I'm new to C# and web services so I don't know for sure.
If it is permission related, where/how can I give the client permission to access the host's registry?
WFC code:
public class IRClass
{
...
public string init()
{
string result = "THE SERVICE IS WORKING BORK BORK\n";
int handle = 1234;
double retVal = -1;
Microsoft.Win32.RegistryKey key = Microsoft.Win32.Registry.LocalMachine.OpenSubKey(#"SOFTWARE\Rand McNally\DispatchAssistant\StandAlone\Install");
\\^^^ THIS RETURNS NULL WHEN CALLED BY A CLIENT ^^^
if (key != null)
{
string sbDARouterFilePath = key.GetValue("DaRouterPath").ToString();
string sbDADataFilePath = key.GetValue("DaDataPath").ToString();
string sbRouterFilePath = key.GetValue("RoutePath").ToString();
string sbMapFilePath = key.GetValue("MapPath").ToString();
string sbAdminFilePath = key.GetValue("AdminPath").ToString();
string sbDataFilePath = key.GetValue("DataPath").ToString();
try
{
RECode = irLib.irSAInitialize(sbDARouterFilePath, sbDADataFilePath, sbRouterFilePath, sbMapFilePath, sbAdminFilePath, sbDataFilePath);
}
catch (Exception e)
{
throw new Exception("irSAInitialize call failed in IntelliRouteLib.IRApi\n + e.Message);
}
result += "Key: " + key.ToString() + " \n";
}
else
{
result += "KEY IS NULL\n"; \\THIS SHOULDN'T HAPPEN
}
...
return result;//return RECode.ToString();
}
}
WCF App.Config
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<appSettings>
<add key="aspnet:UseTaskFriendlySynchronizationContext" value="true" />
</appSettings>
<system.web>
<compilation debug="true" />
</system.web>
<system.serviceModel>
<services>
<service name="RmWcfServiceLibrary.RMService">
<host>
<baseAddresses>
<add baseAddress = "http://localhost:8733/Design_Time_Addresses/RmWcfServiceLibrary/RMService/" />
</baseAddresses>
</host>
<!-- Service Endpoints -->
<endpoint address="" binding="basicHttpBinding" contract="RmWcfServiceLibrary.IIntRoute">
<identity>
<dns value="localhost"/>
</identity>
</endpoint>
<!-- Metadata Endpoints -->
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior>
<serviceMetadata httpGetEnabled="True" httpsGetEnabled="True"/>
<serviceDebug includeExceptionDetailInFaults="False" />
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
<system.diagnostics>
<trace autoflush="true" />
<sources>
<source name="System.ServiceModel"
switchValue="Information, ActivityTracing"
propagateActivity="true">
<listeners>
<add name="sdt"
type="System.Diagnostics.XmlWriterTraceListener"
initializeData= "SdrConfigExample.e2e" />
</listeners>
</source>
</sources>
</system.diagnostics>
</configuration>
WebService Code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using RMWebService.RmWcf;
namespace RMWebService
{
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
public class WebService1 : System.Web.Services.WebService
{
[WebMethod]
public string Intelliroute()
{
IntRouteClient client = new IntRouteClient();
string output = client.IRinit();
client.Close();
return output;
}
}
}
Thanks

WCF REST service url routing based on query parameters

Since WCF routing doesn't support routing for REST services, I created a REST service that has one enpoint which accepts all incoming requests and than redirects those requests based on the query parameters.
I did this by following this article http://blog.tonysneed.com/2012/04/24/roll-your-own-rest-ful-wcf-router/.
This approach works for passing through requests and returning the results. The problem is whenever I get an error, like a 404, from the actual service the message that is returned to the client is a 400 (Bad Request).
What I would like to have is a routing proxy that actually just redirects the calls to the real service based on the query and returns all the errors to the client as they come from the real service.
Is this even the right approach to what I'm trying to accomplish, or are there easier or better solutions?
Any help is appreciated!
In the following I added what my code looks like.
app.config:
<!--
System.net
-->
<system.net>
<settings>
<servicePointManager expect100Continue="false" useNagleAlgorithm="false" />
</settings>
<connectionManagement>
<add address="*" maxconnection="24" />
</connectionManagement>
</system.net>
<!--
System.ServiceModel
-->
<system.serviceModel>
<!--
Services
-->
<services>
<service name="RoutingGateway.RoutingService">
<endpoint address="/api/routing" binding="webHttpBinding" bindingConfiguration="secureWebHttpBinding" contract="RoutingGateway.IRoutingService" behaviorConfiguration="RESTBehaviour" />
</service>
</services>
<client>
<endpoint binding="webHttpBinding" bindingConfiguration="secureWebHttpBinding" contract="RoutingGateway.IRoutingService" name="routingService" behaviorConfiguration="RESTBehaviour" />
</client>
<!--
Bindings
-->
<bindings>
<webHttpBinding>
<binding name="secureWebHttpBinding" hostNameComparisonMode="StrongWildcard" maxReceivedMessageSize="2147483647" transferMode="Streamed">
<security mode="Transport">
<transport clientCredentialType="None" />
</security>
</binding>
</webHttpBinding>
</bindings>
<!--
Behaviors
-->
<behaviors>
<endpointBehaviors>
<behavior name="RESTBehaviour">
<dispatcherSynchronization asynchronousSendEnabled="true" />
<webHttp helpEnabled="true" />
</behavior>
</endpointBehaviors>
<serviceBehaviors>
<behavior>
<!-- To avoid disclosing metadata information, set the value below to false before deployment -->
<serviceMetadata httpsGetEnabled="false" />
<!-- 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 -->
<serviceDebug includeExceptionDetailInFaults="false" />
<!-- Enable Throttling -->
<serviceThrottling maxConcurrentCalls="100" maxConcurrentInstances="100" maxConcurrentSessions="100" />
</behavior>
</serviceBehaviors>
</behaviors>
<serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
</system.serviceModel>
IRoutingService.cs:
[ServiceContract(Namespace = "https://test/api/routing")]
public interface IRoutingService
{
[OperationContract(Action = "*", ReplyAction = "*")]
[WebInvoke(UriTemplate = "*", Method = "*")]
Message ProcessRequest(Message requestMessage);
}
RoutingService.cs:
public Message ProcessRequest(Message requestMessage)
{
ServicePointManager.ServerCertificateValidationCallback = (sender, certificate, chain, errors) => true;
Uri originalRequestUri = WebOperationContext.Current.IncomingRequest.UriTemplateMatch.RequestUri;
// Gets the URI depending on the query parameters
Uri uri = GetUriForRequest(requestMessage);
// Select rest client endpoint
string endpoint = "routingService";
// Create channel factory
var factory = new ChannelFactory<IRoutingService>(endpoint);
Uri requestUri = new Uri(uri, originalRequestUri.PathAndQuery);
factory.Endpoint.Address = new EndpointAddress(requestUri);
requestMessage.Headers.To = requestUri;
// Create client channel
_client = factory.CreateChannel();
// Begin request
Message result = _client.ProcessRequest(requestMessage);
return result;
}

I ended up catching all CommunicationExceptions and then rethrowing WebFaultExceptions with the appropriate messages and status codes.
Here is the code:
Message result = null;
try
{
result = _client.ProcessRequest(requestMessage);
}
catch (CommunicationException ex)
{
if (ex.InnerException == null ||
!(ex.InnerException is WebException))
{
throw new WebFaultException<string>("An unknown internal Server Error occurred.",
HttpStatusCode.InternalServerError);
}
else
{
var webException = ex.InnerException as WebException;
var webResponse = webException.Response as HttpWebResponse;
if (webResponse == null)
{
throw new WebFaultException<string>(webException.Message, HttpStatusCode.InternalServerError);
}
else
{
var responseStream = webResponse.GetResponseStream();
string message = string.Empty;
if (responseStream != null)
{
using (StreamReader sr = new StreamReader(responseStream))
{
message = sr.ReadToEnd();
}
throw new WebFaultException<string>(message, webResponse.StatusCode);
}
else
{
throw new WebFaultException<string>(webException.Message, webResponse.StatusCode);
}
}
}
}

How to use HTTPS with WCF SessionMode.Required - simplest possible example

UPDATE (8/7/2014) - The solution to this problem was that I needed to add a class that derived from "UserNamePasswordValidator" and register it in Web.Config.
I have created a simple test WCF service and test console client application (see below for code). I am using .NET 4.5.1. I have already searched for duplicates on StackOverflow (found similar posts here and here) - however I feel that the referenced posts are potentially outdated, and also feel that my post is more limited in scope.
OK now for the example:
The solution currently uses sessions (in ITestService.cs):
[ServiceContract(SessionMode = SessionMode.Required)]
... and uses wsHttpBinding (see below app.config and web.config).
When I deploy this to a server, I am successfully able to access it via a web browser using HTTPS like this: https://myserver.com/test/testservice.svc
However, when I change the endpoint in the client app.config from:
http://localhost:20616/TestService.svc/TestService.svc
to:
https://myserver.com/test/testservice.svc
and run the console application again, I receive the error: "The provided URI scheme 'https' is invalid; expected 'http'. Parameter name: via"
My question is, what is the minimum changes I need to make for this to work, without changing SessionMode.Required?
Here is the client console application code. Please be sure to change the App.Config value for "mycomputer\Matt" to the correct value for your machine.
Program.cs
using System;
namespace TestClient
{
class Program
{
static void Main(string[] args)
{
Console.Clear();
Console.WriteLine("Attempting to log in...");
try
{
TestServiceReference.TestServiceClient client = new TestServiceReference.TestServiceClient();
bool loginSuccess = client.LogIn("admin", "password");
if (loginSuccess)
{
Console.WriteLine("Successfully logged in.");
string secretMessage = client.GetSecretData();
Console.WriteLine("Retrieved secret message: " + secretMessage);
}
else
{
Console.WriteLine("Log in failed!");
}
}
catch (Exception exc)
{
Console.WriteLine("Exception occurred: " + exc.Message);
}
Console.WriteLine("Press ENTER to quit.");
Console.ReadLine();
}
}
}
App.config:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.1"/>
</startup>
<system.serviceModel>
<bindings>
<wsHttpBinding>
<binding name="WSHttpBinding_ITestService"/>
</wsHttpBinding>
</bindings>
<client>
<endpoint address="https://myserver.com/test/testservice.svc" binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_ITestService" contract="TestServiceReference.ITestService" name="WSHttpBinding_ITestService">
<identity>
<userPrincipalName value="mycomputer\Matt"/>
</identity>
</endpoint>
<!--<endpoint address="http://localhost:20616/TestService.svc/TestService.svc" binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_ITestService" contract="TestServiceReference.ITestService" name="WSHttpBinding_ITestService">
<identity>
<userPrincipalName value="mycomputer\Matt"/>
</identity>
</endpoint>-->
</client>
</system.serviceModel>
</configuration>
WCF Service code.
ITestService.cs:
using System.ServiceModel;
namespace WcfSessionsOverHttpsTest
{
[ServiceContract(SessionMode = SessionMode.Required)]
public interface ITestService
{
[OperationContract(IsInitiating = true)]
bool LogIn(string username, string password);
[OperationContract(IsInitiating = false, IsTerminating = true)]
bool LogOut();
[OperationContract(IsInitiating = false)]
string GetSecretData();
}
}
TestService.svc:
namespace WcfSessionsOverHttpsTest
{
public class TestService : ITestService
{
public bool IsAuthenticated { get; set; }
bool ITestService.LogIn(string username, string password)
{
if (username == "admin" && password == "password")
{
IsAuthenticated = true;
return true;
}
else
{
IsAuthenticated = false;
return false;
}
}
bool ITestService.LogOut()
{
IsAuthenticated = false;
return true;
}
string ITestService.GetSecretData()
{
if (!IsAuthenticated)
{
throw new System.Security.Authentication.AuthenticationException("User has not logged in.");
}
else
{
string secretMessage = "The Red Sox are going to win the World Series in 2016";
return secretMessage;
}
}
}
}
Web.config:
<?xml version="1.0"?>
<configuration>
<appSettings>
<add key="aspnet:UseTaskFriendlySynchronizationContext" value="true"/>
</appSettings>
<system.web>
<compilation debug="true" targetFramework="4.5.1"/>
<httpRuntime targetFramework="4.5"/>
</system.web>
<system.serviceModel>
<bindings>
<wsHttpBinding>
<binding name="wsHttpEndpointBinding" closeTimeout="00:10:00" openTimeout="00:10:00" receiveTimeout="00:10:00" sendTimeout="00:10:00" maxReceivedMessageSize="2147483647">
<readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647"/>
</binding>
</wsHttpBinding>
</bindings>
<services>
<service name="WcfSessionsOverHttpsTest.TestService">
<endpoint address="/TestService.svc" binding="wsHttpBinding" bindingConfiguration="wsHttpEndpointBinding" contract="WcfSessionsOverHttpsTest.ITestService"/>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior>
<serviceMetadata httpGetEnabled="true" httpsGetEnabled="true"/>
<serviceDebug includeExceptionDetailInFaults="false"/>
</behavior>
</serviceBehaviors>
</behaviors>
<protocolMapping>
<add binding="wsHttpBinding" scheme="http"/>
</protocolMapping>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true"/>
</system.serviceModel>
<system.webServer>
<modules runAllManagedModulesForAllRequests="true"/>
<directoryBrowse enabled="true"/>
</system.webServer>
</configuration>
Thanks in advance for any help!
Matt

The solution to this problem was that I needed to add a class that derived from "UserNamePasswordValidator" and register it in Web.Config.
public class CustomUserNameValidator : UserNamePasswordValidator
{
public override void Validate(string userName, string password)
{
return;
}
}
Web.config:
<behaviors>
<serviceBehaviors>
<behavior>
<!-- To avoid disclosing metadata information, set the values below to false before deployment -->
<serviceMetadata httpsGetEnabled="true" />
<!-- 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 -->
<serviceDebug includeExceptionDetailInFaults="true" />
<serviceCredentials>
<userNameAuthentication userNamePasswordValidationMode="Custom" customUserNamePasswordValidatorType="MyProgram.CustomUserNameValidator,MyProgram" />
</serviceCredentials>
</behavior>
</serviceBehaviors>
</behaviors>

Simple REST WCF Service Example Code - Endpoint not found

I was trying an example partially from Chapter 5 - RESTful .Net, but couldn't make it work for some reason (receiving 404-Not found).
using System;
using System.ServiceModel;
using System.ServiceModel.Description;
using System.ServiceModel.Web;
[ServiceContract]
public class RestService
{
[OperationContract]
[WebGet(UriTemplate = "Hosting")]
public void Hosting()
{
Console.WriteLine("RestService::Hosting()");
WebOperationContext.Current.OutgoingResponse.StatusCode = System.Net.HttpStatusCode.OK;
}
static void Main(string[] args)
{
var host = new ServiceHost(typeof(RestService));
var endpoint = host.AddServiceEndpoint(typeof(RestService), new WebHttpBinding(), "http://localhost:8080/Hosting");
endpoint.Behaviors.Add(new WebHttpBehavior());
host.Open();
Console.ReadKey();
}
}
It works (returns status-code OK) if I use WebServiceHost as follows
static void Main(string[] args)
{
var host = new WebServiceHost(typeof(RestService), new Uri("http://localhost:8080"));
host.Open();
Console.ReadKey();
}
So the question is how to make it work with ServiceHost (without any configuration file etc. if possible) ?

WebServiceHost creates an EndPoint for you, nothing wrong if you continue using it. Refer this link for more details...
But you can also add below configuration to your service configuration to use ServiceHost, I have given an example, you can change it to reflect your service classes.
<system.serviceModel>
<services>
<service name="YourService.DateTimeService" behaviorConfiguration="customBehavior">
<endpoint address="Basic" binding="basicHttpBinding" contract="DifferentBindings.IDateTime">
<identity>
<dns value="localhost" />
</identity>
</endpoint>
<endpoint address="Web" binding="webHttpBinding" contract="DifferentBindings.IDateTime" behaviorConfiguration="webHttpBehavior">
<identity>
<dns value="localhost"/>
</identity>
</endpoint>
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
<host>
<baseAddresses>
<add baseAddress="http://localhost:8731/DifferentBindings/DateTimeService/" />
</baseAddresses>
</host>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior>
<!-- To avoid disclosing metadata information,
set the value below to false before deployment -->
<serviceMetadata httpGetEnabled="True"/>
<!-- 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 -->
<serviceDebug includeExceptionDetailInFaults="False" />
</behavior>
</serviceBehaviors>
<endpointBehaviors>
<behavior name="webHttpBehavior">
<webHttp/>
</behavior>
</endpointBehaviors>
</behaviors>
</system.serviceModel>

So I was curious how complex this will be with WCF. Tried it out. It's streight forward.
I used this tutorial to create a simple service that has a doWork method that expects a string and returns a greeting.
Greeting:
[DataContract]
public class Greeting
{
[DataMember]
public string Str { get; set; }
}
Svc Contract:
[OperationContract]
[WebInvoke(Method = "ResponseFormat = WebMessageFormat.BodyStyle = WebMessageBodyStyle.Bare, UriTemplate = "sayHello/{name}/")]
Greeting DoWork(string name);
Svc Impl:
public class GreetingService : IGreetingService
{
public Greeting DoWork(string name)
{
return new Greeting {Str = string.Format("Hello {0}", name)};
}
}
Then you can first test it by:
Right click on the svc file in visual studio > view in browser
add 'sayHello/test' to the url
see the greeting in the browser
A consumer for this can be implemented in AngularJS using either the $http oder the $resource service
<!DOCTYPE html>
<html ng-app="restTest">
<head>
<title></title>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.27/angular.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.27/angular-resource.min.js"></script>
<script language="javascript">
// set up the app
var app = angular.module('restTest', ['ngResource']);
// create a controller
app.controller('RestTestCtrl', function ($scope, $http, $resource) {
// initial greeting
$scope.greeting = "Not greeted yet";
// say hello, consuming the svc using $http
$scope.sayHelloHttp = function () {
var url = "http://localhost:7507/GreetingService.svc/sayHello/" + $scope.inName + "/";
$http.get(url).
success(function(data) {
$scope.greeting = data.Str;
});
}
// say hello, consuming the svc using $resource
$scope.sayHelloRest = function () {
var GreetingSvc = $resource("http://localhost:7507/GreetingService.svc/sayHello/:name");
GreetingSvc.get({ name: $scope.inName }, function(data) {
$scope.greeting = data.Str;
});
}
});
</script>
</head>
<body ng-controller="RestTestCtrl">
<!-- bind the value of this input to the scope -->
<input type="text" ng-model="inName"/>
<button ng-click="sayHelloHttp()">$http</button>
<button ng-click="sayHelloRest()">$resource</button>
<!-- bind the greeting property -->
<div>{{greeting}}</div>
</body>
</html>
I guess everything above can be expressed more advance but it should give you a basic and working example to get started.

UNABLE to POST data to WCF from Android

I'm trying to send data to WCF service from an Android Application but somehow the service doesn't seems to be call through the android. I received a STATUSCODE value = 500 through adnroid in LOGCAT (which means the Internal Server Error) I go through the source code 100 times but didn't figure out the Bug. and almost checked all the posts related to my problem but still didn't get any solution.
HERE IS THS CODE
Android Code:
private class sendPostData extends AsyncTask<String, Void, String>
{
#Override
protected String doInBackground(String... params) {
// TODO Auto-generated method stub
HttpPost request = new HttpPost( LOGIN_SERVICE_URL + "/MyCar");
request.setHeader("Accept", "application/json");
request.setHeader("Content-type", "application/json");
JSONStringer getCarInfo;
try {
getCarInfo = new JSONStringer()
.object()
.key("myCar")
.object()
.key("Name").value(edt_carName.getText().toString())
.key("Make").value(edt_carMake.getText().toString())
.key("Model").value(edt_carModel.getText().toString())
.endObject()
.endObject();
StringEntity entity = new StringEntity(getCarInfo.toString());
request.setEntity(entity);
// Send request to WCF service
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpResponse response = httpClient.execute(request);
Log.d("WebInvoke", "Saving : " + response.getStatusLine().getStatusCode());
}
catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(String result) {
txt_verif.setText("Success");
}
}
everything is working fine in android code except calling the WCF service. I Debug the code several times and received statuscode = 500
HERE is the WCF Service
Service.cs
public class Service1 : IService1
{
public void UpdateMyCar(myCar myCar) {
string strConnectionString = ConfigurationManager.ConnectionStrings["Database1"].ConnectionString;
SqlConnection conn = new SqlConnection(strConnectionString);
conn.Open();
using (SqlCommand cmd = new SqlCommand("Insert into TestingTable (Name,Make,Model) Values (#Name,#Make,#Model)", conn)) {
cmd.Parameters.AddWithValue("#Name", myCar.Name);
cmd.Parameters.AddWithValue("#Make", myCar.Make);
cmd.Parameters.AddWithValue("#Model", myCar.Model);
int queryResult = cmd.ExecuteNonQuery();
} conn.Close();
}
LogCat
WebInvoke Saving : 500
IService1.svc
[ServiceContract]
public interface IService1
{
[OperationContract]
[WebInvoke(
Method = "POST",
UriTemplate = "MyCar",
BodyStyle = WebMessageBodyStyle.WrappedRequest,
ResponseFormat = WebMessageFormat.Json,
RequestFormat = WebMessageFormat.Json)]
void UpdateMyCar(myCar myCar);
}
[DataContract]
public class myCar
{
[DataMember(Name="Name")]
public string Name
{
get;
set;
}
[DataMember(Name="Model")]
public string Model
{
get;
set;
}
[DataMember(Name="Make")]
public string Make
{
get;
set;
}
Web.Config
<?xml version="1.0"?>
<configuration>
<appSettings/>
<connectionStrings/>
<system.web>
<compilation debug="true" targetFramework="4.0">
</compilation>
<authentication mode="Windows"/>
<pages controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID"/></system.web>
<system.serviceModel>
<services>
<service name="CarSercive.Service1" behaviorConfiguration="CarSercive.Service1Behavior">
<!-- Service Endpoints -->
<endpoint address="" binding="webHttpBinding" contract="CarSercive.IService1">
<identity>
<dns value="localhost"/>
</identity>
</endpoint>
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="CarSercive.Service1Behavior">
<serviceMetadata httpGetEnabled="true"/>
<serviceDebug includeExceptionDetailInFaults="false"/>
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
this service is also publish on IIS. and I also checked that service with google chrome extension SIMPLE REST CLIENT and received an internal server error

The problem is your host name doesn't match what you are using from the phone.
You can turn off address filter to fix this temporarily:
[ServiceBehavior(AddressFilterMode=AddressFilterMode.Any)]
public class Service1 : IService1
{
....
}
But you should fix the hostname when you release to production

Create a domain in your machine with proper port number and make sure you are able to call the service using the Google's Rest client.If it works,then you won't find any issue if you call the same using your android phone.
Following article will help to setup virtual directory with proper port number.[http://www.hosting.com/support/iis7/create-new-sites-in-iis-7/]
Note you can't call localhost directly from your mobile.atleast try to call the service with ipaddress.[http://localhost/service/mycar] =>[http://DemoService/service/mycar]

The following code will help you to debug your code a little bit deep.
catch (Exception ex)
{
WebException webexception = (WebException)ex;
var responseresult = webexception.Response as HttpWebResponse;
//Code to debug Http Response
var responseStream = webexception.Response.GetResponseStream();
string fault_message = string.Empty;
int lastNum = 0;
do
{
lastNum = responseStream.ReadByte();
fault_message += (char)lastNum;
} while (lastNum != -1);
responseStream.Close();
}

Never mind, I have made several changes in web.config file and got the solution. <endpointBehaviors> tag was missing in my case and several other things. here is the updated code of web.config file.
[UPDATED web.config file]
<?xml version="1.0"?>
<configuration>
<appSettings/>
<connectionStrings>
<add name="DB" connectionString="Data Source=.\SQLEXPRESS;AttachDbFilename=C:\Users\Munyb\Documents\Visual Studio 2010\Projects\CarSercive\CarSercive\App_Data\Database1.mdf;Integrated Security=True;User Instance=True" providerName="System.Data.SqlClient"/>
</connectionStrings>
<system.web>
<compilation debug="true" targetFramework="4.0">
</compilation>
<authentication mode="Windows"/>
<pages controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID"/></system.web>
<system.serviceModel>
<services>
<service name="CarSercive.Service1" behaviorConfiguration="RESTfulServ">
<!-- Service Endpoints -->
<endpoint address="" binding="webHttpBinding" contract="CarSercive.IService1" behaviorConfiguration="web"></endpoint>
</service>
</services>
<behaviors>
<endpointBehaviors>
<behavior name="web">
<webHttp/>
</behavior>
</endpointBehaviors>
<serviceBehaviors>
<behavior name="RESTfulServ">
<serviceMetadata httpGetEnabled="true"/>
<serviceDebug includeExceptionDetailInFaults="false"/>
</behavior>
</serviceBehaviors>
</behaviors>
<serviceHostingEnvironment multipleSiteBindingsEnabled="true">
</serviceHostingEnvironment>
</system.serviceModel>
<system.webServer>
<modules runAllManagedModulesForAllRequests="true">
</modules>
</system.webServer>
</configuration>

Develop Reference

C# (C-Sharp) is a programming language developed by Microsoft that runs on the .NET Framework.

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