What is an API and how does REST work?

Computer Science

ScanSolve AI Answer

An API (Application Programming Interface) lets software systems communicate. REST APIs use HTTP methods: GET (read), POST (create), PUT/PATCH (update), DELETE (remove). Example: GET /api/users returns a list of users. POST /api/users with JSON body creates a new user. Response includes status codes: 200 (OK), 201 (created), 400 (bad request), 404 (not found), 500 (server error). REST is stateless — each request contains all info needed. Data format is typically JSON.

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An API (Application Programming Interface) lets software systems communicate. REST APIs use HTTP methods: GET (read), POST (create), PUT/PATCH (update), DELETE (remove).

What is an API and how does REST work?
Computer Science

This computer science problem involves algorithmic thinking and programming concepts. The solution below explains the approach, logic, and implementation step by step.

ScanSolve AI Answer
An API (Application Programming Interface) lets software systems communicate. REST APIs use HTTP methods: GET (read), POST (create), PUT/PATCH (update), DELETE (remove). Example: GET /api/users returns a list of users. POST /api/users with JSON body creates a new user. Response includes status codes: 200 (OK), 201 (created), 400 (bad request), 404 (not found), 500 (server error). REST is stateless — each request contains all info needed. Data format is typically JSON.