What is a WCF Service application?

What is a WCF Service application?

Windows Communication Foundation (WCF) is a framework for building service-oriented applications. Using WCF, you can send data as asynchronous messages from one service endpoint to another. A service endpoint can be part of a continuously available service hosted by IIS, or it can be a service hosted in an application.

What is WCF Service application in Visual Studio?

The main code is in two different files – one interface and one class. A WCF contains one or more interfaces and its implemented classes. The code behind its class is given below. To run this service, click the Start button in Visual Studio.

What are the different types of operations supported in WCF?

WCF has five types of contracts: service contract, operation contract, data contract, message contract and fault contract.

• Service Contract. A service contract defines the operations which are exposed by the service to the outside world.
• Operation Contract.
• Data Contract.
• Message Contract.
• Fault Contract.

What are 3 basic WCF configurations required for hosting a WCF service?

There are three types of hosting environments for WCF services: IIS, WAS, and self-hosting. The term “self-hosting” refers to any application that provides its own code to initialize the hosting environment. This includes console, Windows Forms, WPF, and managed Windows services.

What is difference between WCF service and Web API?

KEY DIFFERENCE WCF is used for developing SOAP-based services whereas Web API is used for both SOAP-based and RESTful services. WCF does not offer any support for MVC features whereas Web API supports MVC features. WCF supports HTTP, UDP, and custom transport protocol whereas Web API supports only HTTP protocol.

What is WCF Service Library?

The WCF Service Application template can be used to create WCF services with a hosting website created within the project. The WCF Service Library template can be used to create WCF services that are hosted by the WCF Service Host, and these can be tested using the WCF service Test Client.

What is difference between Web service and WCF?

Attributes − WCF service is defined by ServiceContract and OperationContract attributes, whereas a web service is defined by WebService and WebMethod attributes. Protocols − WCF supports a range of protocols, i.e., HTTP, Named Pipes, TCP, and MSMQ, whereas a web service only supports HTTP protocol.

What are the main components of WCF?

The WCF service main components for creating and consuming the service are Address, Binding, and Contracts. It is also called as endpoints.

What are endpoints in WCF?

Endpoints provide clients access to the functionality offered by a WCF service. Each endpoint consists of four properties: An address that indicates where the endpoint can be found. A binding that specifies how a client can communicate with the endpoint. A contract that identifies the operations available.

How is a WCF service hosted?

WCF services can be hosted in any managed application. This is the most flexible option because it requires the least infrastructure to deploy. You embed the code for the service inside the managed application code and then create and open an instance of the ServiceHost to make the service available.

What is the minimum requirement to create a WCF service?

Contracts are needed to create a WCF Service., There are a minimum of two contracts required to create a simple WCF Service.

What is self hosting in WCF?

This is referred to as a self hosting WCF service, the exact meaning of Self Hosted is that it hosts the service in an application that could be a Console Application or Windows Forms and so on. Earlier we saw what a WCF Service is in the . Net environment. We can host a WCF service in IIS and a Windows service also.

How do I host a WCF service in a managed Windows service?

1. Create a WCF Service library. Create a new WCF Service library with the help of Create a new WCF service library and test using WCFTestClient.
2. Add Windows service application for hosting.
3. Add Product Service Host.
4. Windows Service Class.
5. Run ServiceHosts.
6. Add Installer.
7. Config settings.
8. Northwind WCF service to Windows services.

What is the difference between WCF service library and service application?

A “WCF service library” needs a host project (e.g. application) before it can be used. A service application includes a website host already setup for you. A service library is a library of services that a host can reference and startup.

How do I host a WCF service in IIS?

you need to use a wcf service application project and host it over IIS. If you are creating a WCF client library, you need to add another project in your solution and add reference of service in it to host.

What is the difference between service library and service application?

One is a Web Site for creating WCF Services from File | New | Web Site…| Visual C# | WCF Service and another is a Project for creating WCF service Application. A service library is a library of services that a host can reference and startup.A service application includes a website host already setup for you.

What are the different types of WCF services in Visual Studio?

When you try to create a WCF service using Visual Studio IDE, you will have a choice of two types of WCF services, WCF Service Application and WCF Service Library. Now let us see the differences between them. We will do this by generating each of them and comparing the results.