What Is the Purpose of Web Services?

In order to create a web product, various platforms are used, for example, .Net, Angular JS, Java, Node.js, etc. But the possibility to develop web product on different platforms and languages causes some troubles.

The point is that the application of various types should be somehow interconnected and their interaction should be available despite the language of their development and other structural specifics. To solve this problem, web services are used. Web service is a general platform that enables various apps to exchange data.

The Algorithm of Web Services Operation

  • Client makes a request via a set of web services calls.
  • This request is executed through remote procedure calls (RPC).
  • Server will be hosted with a actual web service.
  • Client receives the answer to the request.

This procedure is possible due to the XML language (eXtensible Markup Language). The data on XML is transmitted between the client and server. This language resembles HTML and it is an intermediate language for different programming ones. In short, all web applications can ‘communicate’ with each other with the help of XML. In order to send the XML data, web services use SOAP (Simple Object Access Protocol).

Why Are Web Services Used?

  • The data is sent via HTTP.
  • SOAP messages are the data that are passed from the web servicer to the application.
  • SOAP message is the XML document that the majority of applications understand.

The described above process should be clearly realized by the employees of a software testing company to thoroughly execute web testing, including unit checking of web apps, functional testing, load control, security testing either manually or with the help of automated test scripts.

Source: QATestLab