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REST API

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descriptionREST API
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Overview​

A REST API is a web API style that uses resource-oriented URLs, HTTP verbs, and stateless request-response interactions.

It matters because REST has shaped how many modern APIs are designed, documented, and consumed.

What a REST API Usually Involves​

REST is often associated with:

  • resource-oriented endpoints
  • HTTP methods
  • stateless requests
  • predictable URL structures
  • standard response patterns

That makes it both a practical design style and a shared vocabulary for web API work.

Why REST APIs Matter​

REST APIs matter because a large portion of application integration still depends on HTTP-based service interfaces.

Teams use them for:

  • backend integrations
  • frontend data access
  • SaaS interoperability
  • internal service communication

Even when newer styles exist, REST remains one of the most common reference points.

REST vs RPC or GraphQL​

REST is often contrasted with other API styles.

  • REST emphasizes resources and HTTP semantics.
  • RPC-style APIs emphasize actions or procedures.
  • GraphQL emphasizes flexible querying through one schema endpoint.

That difference matters because API shape changes client expectations, documentation, and operational behavior.

Practical Caveats​

REST is useful, but many so-called REST APIs only follow the style loosely.

  • Naming alone does not make an API RESTful.
  • Versioning and consistency still matter.
  • HTTP semantics are often underused.
  • Good docs matter as much as endpoint design.

REST is most useful as a coherent design discipline rather than a label.

Frequently Asked Questions​

Is every HTTP API a REST API?​

No. Many HTTP APIs use the transport without following REST-style resource patterns closely.

Is REST outdated?​

No. It is still one of the most common API styles, even if it is not the only one.

Why do people still choose REST?​

Because it is familiar, broadly supported, and fits many integration use cases well.

Resources​