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REST is a style of designing loosely coupled Web applications that rely on named resources rather than messages. Ingeniously, REST piggybacks on the already validated (and successful, don’t you think, man?) infrastructure of the Web– HTTP. That is, REST leverages aspects of the HTTP protocol such as GET and POST requests. Because it’s REST’s bag, RESTful applications turn out to be quite clean in their API as you don’t spend a lot of time reinventing the wheel– you get a lot for free when leveraging HTTP.