what is REST?

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REST means representation state transfer

It is architectural style for distributed hypermedia systems and was first presented by Roy Fielding in 2000 in his famous dissertation.
REST defines 6 architectural constraints which make any web service – a true RESTful API.

  1. Uniform interface
  2. Client–server
  3. Stateless
  4. Cacheable
  5. Layered system
  6. Code on demand (optional)