A web service can be defined as a communication bridge between two applications over a network. The W3C defines a web service generally as:
"A software system designed to support interoperable machine-to-machine interaction over a network."
Web services innovation speaks to a vital route for organizations to correspond with one another and with customers also. Not at all like customary customer/server models, for example, a web server or web page framework, web administrations don't furnish the client with a GUI. Rather, they offer business rationale, information, and procedures through an automatic interface over a system. The applications interface with one another, not with the clients. Engineers can then add the web administration to a GUI (for example, a web page or an executable system), to offer particular usefulness to clients.
Let's look into the example that we will be following in this chapter. Our Drupal website holds recipe contents, and they have data...