What's The Difference Between Web Service And Wcf?

Departure Between WCF and Web Services

WCF is a replacement for all before web service technologies. Microsoft develops it. It supersedes what is traditionally considered as "web services". Spider web Service is based on Lather that returns data in XML form. It only supports the HTTP protocol. Information technology is too not open source and can exist consumed by whatever client who understands XML. It tin can only be hosted in IIS.

What is WCF?

WCF is based on Lather and returns data in XML course. It is an extension of the spider web service (ASMX) and supports various protocols like HTTP, HTTPS, TCP, Named Pipes, MSMQ, etc. WCF has an issue with its wearisome and extensive configuration. It is not open up source just can be used by any client who understands XML. It can exist hosted on multiple platforms equally in the application or on IIS, or using window service.

In what scenarios must WCF be used?

For making business transactions, WCF provides u.s. with a secure server.
2 or more people can communicate and too exchange information in existent-time using a chat service built on top of WCF.
A dashboard awarding that polls one or more than services for information and presents information technology logically.
Exposing a workflow that is implemented using Windows Workflow Foundation as a WCF service.

What is a Web Service?

Equally discussed above, Web Services work in a stateless environs. It tin only be accessed over HTTP. WCF services can exist hosted in different types of applications. Therefore, unlike Web Services, WCF is more flexible.

WCF can exist hosted in various scenarios. Such scenarios include services such every bit WAS, IIS, Self-hosting, Managed Windows Service, etc.

Head To Head Comparison Between WCF and Web Services(Infographics)

Below is the peak 9 difference between WCF vs Web Services

Key Differences Betwixt WCF and Spider web Services

Both are popular choices in the market place; let us talk over some of the major difference:

While transferring information from 1 awarding to other awarding, Web service uses HTTP protocol only. On the other hand, for transporting data, WCF supports more than protocols compared to ASP.NET web services. Autonomously from sending messages using HTTP, WCF also supports Manual Control Protocol (TCP), Microsoft Message Queuing (MSMQ) and named pipes.
WCF is architecturally more than robust than Web Service.
XmlSerializer is used in Web Services. WCF uses DataContractSerializer, which is amend when compared to XmlSerializer in terms of performance.
When communicating between multiple applications developed on unlike platforms, we use WCF. Using WCF is the only possible for transferring data if we are transferring data from the .NET platform to any other application running on other operating systems such every bit Unix or Linux.
Security in WCF is very high when compared to web service.

WCF vs Web Services Comparison Table

Beneath is the 9 topmost comparison betwixt WCF vs Web Services

The ground of comparison	WCF	Web Services
Introduction Version	WCF service got introduced with .NET version iii.0.	Web service exists in a .net framework from version 1.0.
Protocol for receiving and sending messages	WCF services apply Lather past default, but the messages can be in whatever format and conveyed by using any send protocol such equally WS- HTTP, TCP, Named Pipes, HTTP, HTTPs, MSMQ, P2P(Point to Point) etc.	ASP.Cyberspace Web services can transport and receive messages using SOAP over only HTTP or HTTPS.
FILE ExtEnsion	Wcf services take a ".svc" extension.	Web services have a ".asmx" extension.
Directive	The svc page uses the "ServiceHost" directive.	The asmx page uses the "WebService" directive.
Serialization technique	It uses DataContractSerializer in System.RunTime.Serialization namespace for serialization.	For serialization, ASP.NET Web services are based on the XmlSerializer in System.XML.Serialization namespace. Some of the limitations of XmlSerializer are: A possibility of public properties/fields serialization. Serialized is only possible for collection classes implementing Icollection or IEnumerable. Serialization is not possible for classes implementing IDictionary, for example, HashTable. Explicit indication of fields or properties that are to be serialized into XML and identification of fields that are to be ignored past serializer is not possible.
Hosting mechanism	WCF services can exist hosted in multiple platforms such every bit IIS, Windows Activation Services(WAS), Managed Windows services or self-hosting etc.	ASP.net Spider web service can but be hosted in IIS.
unhandled Exception handling	Exceptions that are unhandled are non returned to clients as SOAP faults.	Exceptions that are unhandled are returned to clients as Lather faults in ASP.NET Web services.
Multi-Thread Support	Multi-threading is supported by WCF services.	There is no back up for multi-threading in web services.
Operation	WCF is faster when compared to Spider web Services	Since web services employ serializers, therefore they are slower than WCF services in terms of performance.

Example Of WCF vs Web Services

Below are the example of WCF vs Web Services are as follows:

Web Services

The post-obit code snippet shows us how to develop a service in Web Service.

[WebService] public class MyService { [WebMethod] public SumClass SumOfNums(string JsonStr) { var ObjSerializer = new JavaScriptSerializer(); var ObjSumClass = ObjSerializer.Deserialize<SumClass>(JsonStr); return new SumClass().GetSumClass(ObjSumClass.First, ObjSumClass.Second); } } public grade SumClass { public int First, Second, Sum; public SumClass GetSumClass(int Num1, int Num2) { var ObjSum = new SumClass { Sum = Num1 + Num2, }; return ObjSum; } }

WCF

The post-obit code snippet shows usa how to develop a service in WCF.

ServiceContract] blic course MyService : WebService { [OperationContract] public SumClass SumOfNums(string JsonStr) { var ObjSerializer = new JavaScriptSerializer(); var ObjSumClass = ObjSerializer.Deserialize<SumClass>(JsonStr); return new SumClass().GetSumClass(ObjSumClass.Offset, ObjSumClass.Second); } } [DataContract] public course SumClass { [DataMember] public int Beginning; [DataMember] public int Second; [DataMember] public int Sum; public SumClass GetSumClass(int Num1, int Num2) { var ObjSum = new SumClass { Sum = Num1 + Num2, }; return ObjSum; } }

Conclusion

From the above give-and-take, WCF service is definitely an advanced technology that Spider web service. WCF is faster than web service in terms of performance. WCF provides better security, supports various protocols as well equally bulletin formats. The just hectic surface area of WCF for developers is its configuration portion. All the same, this trouble as well got solved with WCF4.0 by introducing default configuration settings. It is noticed that upwards to.NET3.v, the visual studio, provides a direct template for web service. From.NET4.0, we do not go any direct template for web service. Hence, nosotros need to create a web application & add a web service to it.