Web Services

What

Web service is a standardized medium to propagate communication between the client and server applications on the World Wide Web.
Web services provide a common platform that allows multiple applications built on various programming languages to have the ability to communicate with each other
Common Protocols
- SOAP
  - Simple Object Access Protocol.
  - SOAP was developed as an intermediate language so that applications built on various programming languages could talk quickly to each other and avoid the extreme development effort.
- WSDL
  - Web Services Description Language(WSDL).
  - WSDL is an XML-based file which tells the client application what the web service does and gives all the information required to connect to the web service.
- REST
  - REpresentational State Transfer.
  - REST is used to build Web services that are lightweight, maintainable, and scalable.
- GraphQL