REST is a web service used for exchanging data between multiple applications via an HTTP protocol. RESTful Web Services are scalable and easily maintainable.
Here is a simple diagram that explains how the REST Web Service works:
As we can see in the diagram, the client requests some data by making a call to the Rest Web Service Server. Here, when we send an HTTP Request, we also provide some headers, such as what type of data we want as a response. These responses could be JSON, XML, HTML, or any other form. When the server receives the request and pulls data from storage, it does not simply return the database resources as a response. It sends a representation of these resources. That's why it is called representational. When the server responds to the client with this formatted data, the state of our application changes. And that's why it's called...