As I said, REST (Representational State Transfer) is an architectural style for designing distributed applications, particularly web-based APIs. RESTful APIs use HTTP methods (such as GET, POST, PUT, DELETE) to perform CRUD (Create, Read, Update, Delete) operations on resources identified by a URL (Uniform Resource Locator).
If you know HTTP you know REST.
REST also relies on a stateless client-server architecture, where each request from the client contains all the information necessary for the server to fulfill the request, without needing to maintain session state.
Here are some scenarios when REST is a good choice:
When you need to expose data and services via an API because REST is a popular and well-established protocol for creating APIs that can be easily consumed by other applications and services.
When you need to support multiple platforms and programming languages because REST relies on standard HTTP methods and data formats, it can be used by a wide variety of programming languages and platforms.
When you need to support caching because REST supports caching, which can improve performance and reduce network traffic.
When you need to build simple, lightweight APIs
When you need to support a large number of resources