What is RestfulAPI?

RESTful 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. RESTful APIs define a set of constraints for how the API should behave, including using standard HTTP methods (GET, POST, PUT, DELETE) to perform operations on resources, which are identified by URLs. They are commonly used for building web services, mobile applications, and other distributed systems due to their simplicity, scalability, and ease of integration.