Web API
Web API (Application Programming Interface) is a set of protocols, standards, and tools for building software applications that communicate over the web, typically using HTTP/HTTPS. It enables different systems, such as web services, mobile apps, or servers, to exchange data and functionality in a standardized way, often returning data in formats like JSON or XML. Web APIs are fundamental for creating distributed, interoperable applications on the internet.
Developers should learn Web APIs to build scalable, decoupled systems that allow frontend and backend components to interact seamlessly, such as in single-page applications (SPAs) or microservices architectures. They are essential for integrating third-party services (e.g., payment gateways, social media), enabling cross-platform compatibility, and facilitating data exchange in modern web and mobile development.