What is RestAPI?

A REST API (Representational State Transfer Application Programming Interface) is an architectural style for designing networked applications. It relies on a stateless, client-server, cacheable communications protocol -- typically HTTP. REST APIs define a set of constraints, such as using standard HTTP methods (GET, POST, PUT, DELETE) to access and manipulate resources identified by URIs (Uniform Resource Identifiers). They are widely used for building web services and enabling communication between different software systems.