Why web services are used

Why do we need web-services? What are web services and why do we use this? Exposing the Existing Function on the network. A web service is a unit of managed code that can be remotely invoked. Standardized Protocol.

Whether you use a mobile application, search engine or an enterprise system, the user piece of the application (the interface) resides on your device. The data, and potentially the business rules, live on some other server on the network. A key feature of web services is that applications can be written in various languages and are still able to communicate by exchanging data with one another via a web service between clients and servers.

A client summons a web service by sending a request via XML, and the service then responses with an XML response. What is web services and why do we use this? Other applications can also use the services of the web services.

NET application can talk to java web services and vice versa. Millions of customers—including the fastest-growing startups, largest enterprises, and leading government agencies—are using AWS to lower costs, become more agile, and innovate faster. Since you don’t want it’s definition I would try to explain with the real world scenario. Think you have an e-commerce website. Since its a website, you need a web server which will host your site.

A client invokes a web service by sending a request (usually in the form of an XML message), and the service sends back an XML response. The capability of web services varies from simple information lookup to complex algorithmic computations. That’s why it can be easily used. Hosting at low monthly rates. Inc (), has become a giant component of the e-commerce giant's business portfolio.

Web services are the same. In fact, web hosting is simply a service in which you remotely lease web servers for your web site’s use. If you have been struggling to figure out what a web server is and why it is needed then you may want to continue reading. The client invoking the web service should know where the web service actually resides. Secondly, the client application needs to know what the web service actually does, so that it can invoke the right web service.

XML is used to tag the data, SOAP is used to transfer the data, WSDL is used for describing the services available and UDDI is used for listing what services are available. For example, a VB or. Since a web service is cross-platform, there should be some commonly understandable language for requesting a service and getting a response from the service. Such a standard common language is XML. Such services are considered web service endpoints (or web service ports), and can be described using WSDL and published in a UDDI registry so that they can be discovered and used by web service clients.

Once a web service is discovere the client makes a request to a web service. Launch your web site with a simple 1-click install.