{ "content": "

Understanding RESTful APIs<\/a><\/h1>

A RESTful API<\/a> is an architectural style for an Application Programming Interface<\/a> that uses HTTP<\/a> requests to access and use data. This architectural style was first defined by Roy Fielding<\/a> in his 2000 doctoral dissertation. According to the Mozilla Developer Network<\/a>, REST stands for Representational State Transfer.<\/p>

The primary goal of a REST<\/a> architecture is to facilitate communication between a Client<\/a> and a Server<\/a>. It relies on a Stateless<\/a> protocol, meaning that each request from a client to a server must contain all the information necessary to understand and complete the request. Common HTTP Methods<\/a> used in REST include GET for retrieving resources, POST for creating them, PUT for updating, and DELETE for removing data.<\/p>

Resources in RESTful APIs<\/a> are typically identified by URIs<\/a> (Uniform Resource Identifiers) and are often represented in JSON<\/a> (JavaScript Object Notation) format, though XML<\/a> is also supported. As noted by IBM<\/a>, the constraints of REST allow for high Scalability<\/a> and Performance<\/a> in modern Web Services<\/a>.<\/p>