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.
Related
I am using WCF REST service with basic authentication(UserName / Password) in IIS.
My interface - ICustomer.cs is as below:
namespace SampleService
{
[ServiceContract]
public interface ICustomer
{
[OperationContract]
[WebInvoke(Method = "GET",
RequestFormat = WebMessageFormat.Json,
ResponseFormat = WebMessageFormat.Json,
UriTemplate = "/Customer/{email}")]
string GetCustomerID(string email);
}
}
Customer.svc is as below:
<%# ServiceHost Language="C#" Debug="true" Service="SampleService.Customer" CodeBehind="Customer.svc.cs" %>
Customer.svc.cs:
namespace SampleService
{
public class Customer : ICustomer
{
public string GetCustomerID(string strEmail)
{
string returnJsonString = bllContactDetails.GetCustomerID(strEmail).ToString(Formatting.None);
WebOperationContext customContext;
customContext = Utility.General.SetCustomHttpStatusCode(returnJsonString);
return returnJsonString;
}
}
public class RestAuthorizationManager : ServiceAuthorizationManager
{
protected override bool CheckAccessCore(OperationContext operationContext)
{
//Extract the Authorization header, and parse out the credentials converting the Base64 string:
var authHeader = WebOperationContext.Current.IncomingRequest.Headers["Authorization"];
if ((authHeader != null) && (authHeader != string.Empty))
{
var svcCredentials = System.Text.ASCIIEncoding.ASCII
.GetString(Convert.FromBase64String(authHeader.Substring(6)))
.Split(':');
var user = new { Name = svcCredentials[0], Password = svcCredentials[1] };
if ((user.Name == "testuser" && user.Password == "testpassword"))
{
//User is authrized and originating call will proceed
return true;
}
else
{
//not authorized
return false;
}
}
else
{
//No authorization header was provided, so challenge the client to provide before proceeding:
WebOperationContext.Current.OutgoingResponse.Headers.Add("WWW-Authenticate: Basic realm=\"MyWCFService\"");
//Throw an exception with the associated HTTP status code equivalent to HTTP status 401
throw new WebFaultException(HttpStatusCode.Unauthorized);
}
}
}
}
I have added Web.Config as below:
<system.serviceModel>
<behaviors>
<serviceBehaviors>
<behavior name="ServiceBehavior">
<serviceMetadata httpGetEnabled="true"
httpsGetEnabled="true"/>
<serviceDebug includeExceptionDetailInFaults="true"/>
<serviceAuthorization serviceAuthorizationManagerType=" SampleService.RestAuthorizationManager, SampleService"/>
</behavior>
</serviceBehaviors>
<endpointBehaviors>
<behavior name="webHttpServiceBehavior">
<!-- Important this is the behavior that makes a normal WCF service to REST based service-->
<webHttp/>
</behavior>
</endpointBehaviors>
</behaviors>
<services>
<service name="SampleService.Customer" behaviorConfiguration="ServiceBehavior">
<host>
<baseAddresses>
<add baseAddress="https://192.168.0.122:443/" />
</baseAddresses>
</host>
<endpoint binding="webHttpBinding" contract="SampleService.ICustomer" behaviorConfiguration="webHttpServiceBehavior" />
</service>
</services>
</system.serviceModel>
I have created Custom SSL and also enabled Basic Authentication in IIS.
When view my IIS hosted WCF service in browser it shows all the list of services.
But when I try to get data using Customer.svc method it is throwing error as below:
HTTP 404. The resource you are looking for (or one of its
dependencies) could have been removed, had its name changed, or is
temporarily unavailable. Please review the following URL and make
sure that it is spelled correctly.
Please find
Also, please let me know if it is the correct binding I'm using for obtaining Basic Authentication.
I'd like to make WCF service which can put image into stream.
I have next in config:
<service name="Images" behaviorConfiguration="ImagesBehavior">
<endpoint address="http://localhost:5523/Images.svc"
binding="basicHttpBinding" contract="Images" />
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
<host>
<baseAddresses>
<add baseAddress="http://localhost:5523/Images" />
</baseAddresses>
</host>
</service>
<behavior name="ImagesBehavior">
<serviceDebug includeExceptionDetailInFaults="true" />
<serviceMetadata httpGetEnabled="true" />
</behavior>
And code:
[OperationContract]
[WebGet(UriTemplate = "GetImage/{imageID}",
BodyStyle = WebMessageBodyStyle.Bare)]
public Stream GetImage(string imageID)
{
try
{
if (WebOperationContext.Current != null)
WebOperationContext.Current.OutgoingResponse.ContentType = "image/jpeg";
var ms = new MemoryStream(myImage);
return ms;
}
catch (Exception e)
{
if (WebOperationContext.Current != null)
WebOperationContext.Current.OutgoingResponse.ContentType = "text/xml";
Console.WriteLine("GetImage ERROR:" + e.Message + "\r\n" + e.StackTrace);
byte[] errorBytes = Encoding.UTF8.GetBytes("ERROR");
return new MemoryStream(errorBytes);
}
}
But when I'm trying this via browser like
http://localhost:5523/Images.svc/GetImage/imagecodeblabla
I've got
400 Bad Request
And when
http://localhost:5523/Images/GetImage/imagecodeblabla
405 Method Not Allowed
What's wrong?
Is your service SOAP or REST? It appears that you're using REST syntax (WebGetAttribute) but your binding is BasicHttpBinding (SOAP).
Try using WebHttpBinding instead and see how that goes!
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>
I have a situation where I would like to make a WCF call as another call is coming in.
Site1 request--> Site2
Site2 request --> Site3
Site2 <-- Site3 response
Site1 <-- Site2 response
The problem I am having is that when Site2 tries to send a message to Site3 while Site1 is sending to Site2; Site2 says it cannot find Site3.
The actual error message is:
Could not find endpoint element with name 'Endpoint_IEchoService' and contract
'FakeCompany.API.Services.Contract.IEchoService' in the ServiceModel client
configuration section. This might be because no configuration file was found
for your application, or because no endpoint element matching this name could be
found in the client element.
Each site is the same configuration and code base. The client, proxy and server are all in the same project. The apps are clones calling each other. It is one website with multiple address bindings. Other regular calls between the sites work fine until I try a call within a call.
As you can probably guess from the contact name, not much in the complex way is happening in my echo service. Single echo calls between the sites work. My problem is when i make a cascade call on the service side to another site.
I am wondering if this is not allowed or if a configuration setting change is required.
Some code and config.
Endpoint addresses are changed at runtime.
If you see something "funky", it is because the client, proxy and service inherit from generic base classes.
//-- ServiceModel Client
<endpoint address="http://FakeCompany.unittest/Services/EchoService.svc"
binding="basicHttpBinding" bindingConfiguration="SecureBinding"
contract="FakeCompany.API.Services.Contract.IEchoService" name="Endpoint_IEchoService">
<identity>
<servicePrincipalName value="host/mikev-ws" />
</identity>
</endpoint>
//-- Bindings
<bindings>
<basicHttpBinding>
<binding name="SecureBinding"
maxReceivedMessageSize="10000000"
sendTimeout="00:05:00">
<security mode="TransportCredentialOnly">
<transport clientCredentialType="Basic" />
</security>
</binding>
</basicHttpBinding>
</bindings>
//-- Behaviours
<behaviors>
<serviceBehaviors>
<behavior name="MyServiceTypeBehaviors">
<serviceMetadata httpGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="true" />
</behavior>
</serviceBehaviors>
</behaviors>
//-- Services
<service name="FakeCompany.API.Services.Service.EchoService" behaviorConfiguration="MyServiceTypeBehaviors">
<endpoint address="" binding="basicHttpBinding" contract="FakeCompany.API.Services.Contract.IEchoService" bindingConfiguration="SecureBinding" />
</service>
//-- TEST
[Test]
public void CascadeMessage()
{
//-- TEST: That a wcf call can occur within another wcf call.
//-- ARRANGE
DTO_Echo_Cascade_Request request = new DTO_Echo_Cascade_Request(unit1, unit2);
request.NextCall = string.Format("{0};{1};{2};", unit3, unit4, unit5);
//-- ACT
var response = EchoAgent.Cascade(request);
//-- ASSERT
Assert.AreEqual("TBA", response.Response);
}
//-- AGENT
internal static DTO_Echo_Response Cascade(DTO_Echo_Cascade_Request request)
{
DTO_Echo_Response response;
using (EchoServiceClient serviceClient = new EchoServiceClient(request))
{
response = serviceClient.Cascade(request);
}
return response;
}
//-- CLIENT
public DTO_Echo_Response Cascade(DTO_Echo_Cascade_Request request)
{
return Process(() => Proxy.Cascade(request));
}
CONTRACT, DTO, PROXY are omitted.
//-- SERVICE
public DTO_Echo_Response Cascade(DTO_Echo_Cascade_Request request)
{
DTO_Echo_Response response = new DTO_Echo_Response();
response.Response += string.Format("Hello from {0};", request.TargetAddress);
if (request.NextCall.NotNullOrEmpty())
{
var split = request.NextCall.Split(new [] {';'}, StringSplitOptions.RemoveEmptyEntries);
if (split.GetUpperBound(0) > 0)
{
DTO_Echo_Cascade_Request nextRequest = new DTO_Echo_Cascade_Request(request.TargetAddress, split[0]);
for (int i = 1; i < split.GetUpperBound(0); i++)
{
nextRequest.NextCall += split[i] + ";";
}
response.Response += EchoAgent.Cascade(nextRequest).Response;
}
}
return response;
}
The exception occurs on the following line
response.Response += EchoAgent.Cascade(nextRequest).Response;
I am trying to implement some WCF and REST services to upload a file on my server, and I have found some code which I am trying to implement, but no success yet.
My code
class Program
{
static void Main(string[] args)
{
string address = "http://localhost/UploadService/UploadService.svc/UploadFile/theFile.txt";
HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(address);
req.Method = "POST";
req.ContentType = "text/plain";
Stream reqStream = req.GetRequestStream();
string fileContents = "the quick brown fox jumped over the lazy dog.";
byte[] bodyContents = Encoding.UTF8.GetBytes(fileContents);
reqStream.Write(bodyContents, 0, bodyContents.Length);
reqStream.Close();
HttpWebResponse resp;
try
{
resp = (HttpWebResponse)req.GetResponse();
}
catch (WebException e)
{
resp = (HttpWebResponse)e.Response;
}
Console.WriteLine("HTTP/{0} {1} {2}", resp.ProtocolVersion, (int)resp.StatusCode, resp.StatusDescription);
}
}
public class UploadService : IUploadService
{
#region IUploadService Members
public void UploadFile(string fileName, Stream fileContent)
{
using (StreamReader fileContentReader = new StreamReader(fileContent))
{
string content = fileContentReader.ReadToEnd();
File.WriteAllText(Path.Combine(#"c:\temp", fileName), content);
}
}
#endregion
}
[ServiceContract]
public interface IUploadService
{
[OperationContract]
[WebInvoke(UriTemplate = "UploadFile/{fileName}")]
void UploadFile(string fileName, Stream fileContent);
}
Web.Config
<system.serviceModel>
<services>
<service behaviorConfiguration="ServiceBehavior" name="UploadService">
<endpoint address="" binding="webHttpBinding" contract="IUploadService" behaviorConfiguration="RestBehavior">
<identity>
<dns value="localhost" />
</identity>
</endpoint>
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="ServiceBehavior">
<serviceMetadata httpGetEnabled="false" />
<serviceDebug httpHelpPageEnabled="false" includeExceptionDetailInFaults="false" />
</behavior>
</serviceBehaviors>
<endpointBehaviors>
<behavior name="RestBehavior">
<webHttp/>
</behavior>
</endpointBehaviors>
</behaviors>
</system.serviceModel>
At the moment, in the response resp = (HttpWebResponse)req.GetResponse(); I am getting:
The remote server returned an error: (400) Bad Request.
What should I do to fix this?
You are making a service request from the same process that is hosting the service. I think they should be separate, e.g. your service host in a console app and your test in another.