How to Create WCF service and host in Windows Service

NET code to fire code on. Now this website comes with its own predefined service template but we are not going to use them so we will delete all of them and then add a reference to our service library project in this website. Type control and click OK to open the Control Panel. Amazon s3, yes | Unmetered bandwidth :. The RED marked area represents the WCF service monitoring statistics i. In this post, I’m going to discuss about WCF service and how it can be developed on top of SharePoint. The main WCF Service Host window contains two areas: NET Framework for building connected, service-oriented applications.

Thus, both client and server must have compatible endpoints. The beginner’s guide to creating a pro photography website, you can select the plan that appeals to you when you opt for HostGator. Regardless of the hosting environment, all WCF services must be associated with a ServiceHost instance to be accessible at run time. Best free web hosting sites, some are worth your time; others are bogus. Finally, Hosting the service in a windows service is same as self hosting but the service creation and disposing will be abstracted in form of a Windows service.

  • Now you website is configured to listen TCP connection request on port 808.
  • With the first incoming client request the hosted application is sprung up and can serve the client requests.

Service IReportService - meant for basic report operations, which can be used by client viewer applications: What this says is that this server will be considered a single mode server and process only one request at a time, rather than using the default of handling multiple requests simultaneously. To create the service, add our Layouts folder in solution. You can also use the Add New Item dialog to add another service later on. It also allows to call Abort() for a non graceful exit of all active client requests (as with Close() and a CloseTimeout of TimeSpan. )Name the service host as ProductServiceHost. Where to use WCF Service library ? For instance the directory listing setting true enables user to access the folder and files.

At a minimum you provide a managed process, instantiate a ServiceHost for each service, and then initialize and open them to provide a communication channel for each endpoint to receive incoming messages. WCF was first introduced as a part of the. First let us create a simple console application. After successful deployment, the published WCF Service will be displayed on the App Service section on Azure portal. You can enable ASP.

IIS provides a new command-line utility to configure Web sites-appcmd. The second solution is to simply implement a WCF client-server solution and access the database over the internet. Obviously, having a separate process advocates fault and security isolation. But because WCF and IIS 6. WCF provides a unified programming model for building service-oriented applications. Now, Right click on Service1. It’s quite simple.

  • Go to Administrative tools > Services and check the following service if they running, if not start them.
  • As you probably have guessed, each of this has its own strengths and weaknesses.
  • HTTP protocol is supported by default, but with this utility you can enable support for named pipes, TCP, or MSMQ for any Web site or application directory.
  • Your deployment scripts can customize the account under which the service is configured if you don’t want to hard-code this into the service installer.
  • Have the first endpoint publish an event, to which the second endpoint subscribes, and have the second endpoint call the Web/WCF service.
  • Name it as NorthwindApp.


Since the one that I worked on required only HTTP protocol I had to add only Add-WindowsFeature NET-WCF-HTTP-Activation45. RegisterType < TestService. Description; Imports System. When you use IIS hosting, the base address used for the service always has to be the same as the address of the. If you omit the address from the configuration, the ServiceHost assumes the base address to be the endpoint address. Use the installer class to initialize Service Control Manager (SCM) settings for the Windows service on installation. A Windows client hosting in-process WCF services for offline work, and consuming remote WCF services over the Web while online. OnStart method of the service, we can write the hosting code for WCF.

The service model also supplies a global OperationContext with access to contextual information for the request including the security context, the request message and related headers, and information about the hosting environment. The endpoint hosting the WCF services needs to configure the callbacks accordingly. Open(); } protected override void OnStop() { if (m_Host ! )If you have changed the base address in the code, then use the modified base address in this step. In addition, opening multiple hosts for the same type does not work with base addresses supplied in the config file and requires use of the ServiceHost constructor.

Account = ServiceAccount.

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However, these applications do require a user to be logged in to start the application-and this limits their usefulness in server deployments. WriteLine("Press to stop the service. )"By the way, it's been a long time since it went out of fashion, but many large enterprise applications still use it. A protocol listener is responsible for receiving requests for a particular protocol. 1260/FileBasedHost/Service. NET code and it does so by running in a separate.

Message-Based Activation

Select the physical path of folder containing ProductServiceHost. ReadLine(); // Close the ServiceHost. You can verify that the service is running on the UI thread by checking the Application. Pick the Right Host Factory¶ WCF offers two service host factories. It is always good practice if you have both in different project. Self-Hosting − When a WCF service is hosted in a managed application, it is known as self-hosting.

The following illustrates enabling named pipes, TCP, and MSMQ support for the default Web site: Host a WCF Service in IIS. Firstly you can subscribe to different events during the process of handling incoming client requests and events for handling the communication. In the ‘Binding information’ text box, you need to specify which port you want to use for netTCP connection. For example, a peer-to-peer collaboration client that uses WPF for its user interface and also hosts a WCF service that allows other clients to connect to it and share information. Clients address each service endpoint in this way: Ultimately, it’s the protocol handler provided by WCF that ensures the ServiceHost instance has been created before requests can be processed. The delegate needs to return a function delegate which creates a SendOption instance every time it is called.

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Diagnostics; using System. In this article, we take a look at the possible solutions to help you diagnose and resolve the Windows service hosting WCF service is not starting issue in Windows. Service behaviors are used for message processing across a service, rather than processing that would be specific to a single operation. Implement the ISimpleCalculator interface as shown below. Because the WAS runtime is another moving part you do not have full control over you might want to avoid it. When performing operations that aren't as straightforward as a simple query to return a value, for example a long calculation, consider invoking the operation locally where possible by referencing the DLL on the client.

Let us start by having a simple console application. Photography for real estate, make sure you optimize each relevant page on your site (there should be one page per keyword you’re targeting). How do I grant administrator rights to a running WCF service hosted in IIS7? This will help IIS to let find your WCF Service. ServiceModel to the project. Doing so we will be able to understand the exact configuration, that are required to run WCF service which are available in the microsoft/wcf image out of the box.

Select the reference of the project we just created: Its implementation in IIS 5. Please refer to the below article for a detailed explanation of this method. Best web hosting services for your personal website or small business [2020 edition]. Select the package path as below and click Next: And that's it. Service reference is added to your client application.


It stands for Internet Information Services. This is the new mechanism available with windows vista. In properties , go to Log On Tab and click on local system account. (Same thing happens in a WCF service with the same code.)

For HTTP, the HTTP listener is http. SampleServiceNamespace. NET AppDomain. Normally WCF receives a type rather than a pre-loaded instance when creating the ServiceHost. WAS Hosting − Hosting a WCF service in Windows Activation Service (WAS) is most advantageous because of its features such as process recycling, idle time management, common configuration system, and support for HTTP, TCP, etc. Since, the WCF service is hosted in IIS and AppFabric is configured for IIS, select the application you have created and then click on the ‘AppFAbric DashBoard’. Hosting through IIS is the most common way to do so. This service provides the listener adapter for the HTTP listener, http.

The problem is, my code works fine in a test console application runned as an administrator, but the same code used from WCF service in IIS7 fails. After that, enable the following option depending on the use. The host application will have to define its own endpoints and specify the Address , Binding and Contracts separately. Becuase it is a full blown web server it actually manages the whole lifecycle of your application, as well as spinning up threads (in conjunction with the WCF runtime). This is part of a legacy WCF project, and I am responsible for adding some functionalities to it, I like it though. In fact, for services deployed in a production server system, the Windows service is the only practical self-hosting choice for several reasons: Now, click on OK button.

Text; using System.

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To close the service, call CommunicationObject. I personally most often choose to use self-hosting, because it lets me take full control over the lifecycle and I am able to use all supported bindings and transport schemes, especially TCP and IPC. Open( ); Uri baseAddress2 = new Uri("net. )"Finally I would highlight few points here, which might be necessary when you would actually use this strategy to run WCF service inside containers. If the issue persists, use the following command in the command Prompt. Now, right click the solution and click Add->New Project. Compile the service. NET Command Prompt and type the following in the Command-line - ‘WCFTestClient’.

Because WAS is a generalization of IIS it provides more robust, manageable and resource efficient hosting. Right click at MyConsoleApp's Reference and click at Add Service Reference. You can host WCF service in different types of applications, like Console application, Windows form, etc. That’s it, we just hosted our WCF Service application in a Windows Activation Service type. We can as many protocols as Comma Separated Values. The methods to use here are BeginOpen/BeginClose and EndOpen/EndClose. Note that this object is ComVisible so it can be called from Visual FoxPro using. Usually we need more powerful communication mechanisms with services.

Windows/Linux Cloud Server

Using a client actually calls the service from the generated proxy and closes the client once the operation call is completed. Now we can use the logger in our service: In this article, we will see how to use the Windows Server AppFabric to monitor WCF and WF Services, for effective application management. ServiceProcess.

Hosting with windows process activation service or activation domain.

We will use the same URI as before. 0 and then enable the support for protocols other than HTTP/HTTPS. In addition, the hosting mode initializes HttpContext. This will open Service URL ( http: )

Windows Server Applications

NET Framework 4. We have already developed WCF Service for addition in the previous article. This programming model remains consistent and is independent of the run-time environment in which the service is deployed. Stop the debugging session in Visual Studio. Other than porting ASMX services, you will most likely avoid using this feature in order to provide a consistent hosting model for your services over multiple protocols. As with programmatic initialization, you must specify the service type and one or more endpoints. You must have learnt something new from this WCF Service Hosting Tutorial.

AddServiceEndpoint( typeof ( IAdaptService ), new WSHttpBinding (), "http:

With 20 years of experience designing and implementing enterprise systems, Michele has held senior executive positions at several corporations, has assembled software development teams and implemented processes for all aspects of the software development lifecycle, and facilitated many successful large-scale enterprise application deployments. Creating a Client includes generating a proxy to the service and a configuration file using the command-line Service Model Metadata Utility Tool. Here, I will explain you about IIS hosting. Can I grant rights to a specific WCF service?


NET website and provides all the features of having multiple request handling and dynamic compilation to a WCF service out of the box. FROM microsoft/wcf: Make the following changes in ‘Service. The WCF service hosted completely in WAS, works similarly like legacy Web Service (ASMX).

(NET runtime in VFP) you can still take advantage of WCF in VFP. Just add these event handlers to the ServiceHost instance before you open the communication channel, as shown here: This hosting option requires that WAS be properly configured, but it does not require you to write any hosting code as part of the application. Lets look in the steps on how we can easily achieve this. Configurations: WS-AtomicTransactions, the APIs from the System. The term “self-hosting” refers to any application that provides its own code to initialize the hosting environment. Under most circumstances you will not interact directly with the ServiceDescription.

DisplayName ="WCFHostedWindowsService"; service. In the run window type intemgr this will open the IIS. Now we will have a very simple single method ServiceContract that will take the Person and return a string with containing the greeting message. To expose the endpoint as a WCF service, inherit from NServiceBus. Using the WCF Service Library template, or the WCF Service Application template in Visual Studio can significantly simplify the steps mentioned above, as most of the tasks described will be done automatically. The service type specified in the @ServiceHost directive also tells the service model which section to use from the web. Having a set of base addresses enables the service to accept calls on multiple addresses and protocols, and to use only a relative URI.

Further Reading

In this service we create a simple DataContract called Person which will keep the user Name. To make such things possible, we have been provided a new hosting environment that is Windows Server AppFabric. Most of the time the Windows service hosting WCF service is not starting is the result of users own mistake in the function code. By using WCF Service Host, you can host a WCF service (in a WCF service library project) without writing extra code or committing to a specific host during development. Decouple service and host implementation where possible, so that the service code is not tied to a single host implementation.

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ServiceHost host; host = new ServiceHost(typeof(MyService), null ); You can also register multiple base addresses separated by a comma, as long as the addresses do not use the same transport schema, as in the following snippet (note the use of the params qualifier in Example 1-3): Set your service to be instance-per-call using the WCF ServiceBehaviorAttribute. Figure 4 illustrates how the IIS 6. To avoid problems associated with memory leaks or faulty code, some hosting environments support configurable process recycling to “freshen up” running host processes. After this, we need copy App. Open( ); Application.

Automatic; Installers. Lets begin assume that you will have a DNS associated with your service which might be true for most of the cases if the service is public is available. The following example creates a ServiceHost object to host a service of type HelloWorldService , and then calls the Open method on ServiceHost. This will provide the default Client Testing as shown below: If you want to host your service on the Internet, best use IIS or WAS to not concern yourself with the security concerns of Internet applications, in all other scenarios use Self-Hosting.

Endpoints function much the same as HTTP-based Web sites that are hosted in IIS, with the exception that a dynamically generated port assignment will exist in the endpoint address. The tool is integrated into Visual Studio through the WCF Service template and is invoked when you start to debug your project. Created, Opening, Opened, Closing, Closed, or Faulted. Current to provide access to ASP. Text; namespace WindowsServiceHostedService { class SimpleCalculator : This gives you as a developer of a WCF service the ability to use Callbacks, Transport Session and reliable messaging as well as sessionful services.

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A console application is ultimately impractical for deploying production services for a few reasons: One way to achieve this is to construct the ServiceHost during the Main() entry point for the Windows application, before invoking Application. Basically the official docker image for WCF service already has these required features enabled. Here, we name it as "WcfService". Uri baseAddress = new Uri("http: )"Defining a WCF Service Contract specifies the operations supported by a service. This example defines a HelloWorldService that returns a message based on the input to the service.

This means you will need to provide a virtual directory in the IIS, supply a. The alternative approach is to place a code file in your App_Code folder that contains a type with a public static void AppInitialize() method. This class is used to set the required properties for a service, to host the service. But there were legacy applications which were written in WCF, so this blog is for those who are/will be working on migration activities like migrating on-prem application to cloud specific application or to containers.

The web site config file (Web. )The service is implemented as both windows service and as WCF service by inheriting from both the i. 5 for this demo. I have used only HTTP binding for my project haven’t tried other bindings. This window provides the summary of the calls as below:

It loads the service configuration endpoints, apply the settings and start the listeners to handle the incoming request.


Modify both the classes with the below code in it: 0 provides other much-needed hosting features making your service more reliable, available, and scalable. If you work on developing client-server applications for the Microsoft platform, you should take a look at the following resources on WCF:

For more information about default endpoints, see Simplified Configuration and Simplified Configuration for WCF Services. WriteLine("The service is ready at {0}", baseAddress) Console. ServiceInstaller. Please note that DISQUS operates this forum. To resolve this issue the following needs to be added within the

8090/MyService/SimpleCalculator"); //Create ServiceHost m_Host = new ServiceHost (typeof(WindowsServiceHostedService.

Next we need to install the service using Visual Studio Command Prompt. When building Windows services we often need a way to communicate with them. So, how do I grant admin rights to a WCF service hosted in IIS7? WCF provides managed protocol handlers for HTTP, named pipes, TCP, and MSMQ.

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So hosting a WCF service in WAS and IIS 7. Best web hosting companies in india 2020, apart from unlimited resources you will also get marketing credits worth 0 for Google, Bing and Yahoo ads. But again - this is exactly what's needed here for talking back to a FoxPro object! In this example, the endpoint is initialized with a complete URI, removing the need for any base addresses. Please find the link to the docker image below: To install the Windows service you should also provide an installer class. A special case of hosting is in-process hosting, or in-proc for short, where the service resides in the same process as the client.

Unfortunately, not all hosting environments are available to each platform, nor does every host support the entire suite of protocols-limiting your options at times. For example, Listing 3 illustrates the use of the lock() statement to protect access to the shared m_form reference. The next section provides information and guidance on hosting options. For more information about hosting options for a service, see Hosting Services. Single is not a good idea from a scalability point of view, and allowing multiple callers to access the single instance using ConcurrencyMode. 0 to increase the overall reliability and scalability for requests over any protocol. If possible you should create services with InstanceContextMode.

ISimpleCalculator { public int Add(int num1, int num2) { return num1+num2; } public int Subtract(int num1, int num2) { return num1-num2; } public int Multiply(int num1, int num2) { return num1*num2; } public double Divide(int num1, int num2) { if (num2 ! )(Single)] attribute at the top of the class. The following table lists all the parameters in the Command line arguments dialog box, which can be found by right-clicking your project in Solutions Explorer in Visual Studio, selecting Properties, then selecting the Debug tab and clicking Start Project. They facilitate request processing to service operations, but they can also play a critical role in the availability and scalability of your services. WCF Service Host enumerates the services in a WCF service project, loads the project’s configuration, and instantiates a host for each service that it finds. Net applications because of which Microsoft came up with WCF services to overcome platform dependencies. StartType = ServiceStartMode. Here, I declare a method int Sum(int x, int y ) in interface as OperationContract.