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API-DESIGN

What is REST API?

Representational State Transfer (REST) is an architectural style for designing networked applications using stateless communications and standard HTTP methods.

Detailed Explanation

REST APIs utilize HTTP methods (GET, POST, PUT, DELETE) to manipulate resource state identified by URIs. Key principles include statelessness, client-server separation, cacheability, and uniform interface design.

Common Mistakes to Avoid

  • Using POST for all operations regardless of idempotency
  • Including verbs in resource URIs (/getUser)
  • Returning HTTP 200 OK with error payload bodies

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