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An API, or Application Programming Interface, is a set of rules, protocols, and tools that allows different software applications to communicate with each other. It defines the methods and data formats that developers can use to request and exchange information or functionality between software systems. APIs play a fundamental role in modern software development and enable various applications to work together seamlessly. Here are some key aspects to understand about APIs:

Backend API

A backend API (Application Programming Interface) is a set of rules and protocols that allows different software applications to communicate and exchange data with a server or backend system. In the context of web development, the backend API serves as the bridge between the frontend (client-side) and the backend (server-side) of an application. Here are key aspects of a backend API:


A RESTful API (Representational State Transfer Application Programming Interface) is a type of web API (Application Programming Interface) that adheres to the principles of REST, a set of architectural constraints and guidelines for designing networked applications. RESTful APIs are designed to be simple, scalable, and stateless, making them a popular choice for building web services and enabling communication between different software systems. Here are the key aspects of RESTful APIs: