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REST API

REST API (Representational State Transfer Application Programming Interface) is a standard for designing web services. It uses HTTP methods to perform CRUD (Create, Read, Update, Delete) operations on resources, providing a scalable and stateless communication approach widely used in web and mobile application development.

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Frequently asked questions
  • What is REST API?

    REST API (Representational State Transfer Application Programming Interface) is a set of rules and conventions for building and interacting with web services. It uses standard HTTP methods (GET, POST, PUT, DELETE) to perform operations on resources, typically exchanging data in JSON or XML format.

  • How does RESTful differ from SOAP-based APIs?

    RESTful APIs use standard HTTP methods and are stateless, relying on representations of resources. In contrast, SOAP (Simple Object Access Protocol) is a protocol with a more rigid structure, often using XML, and may operate over various protocols, including HTTP, SMTP, and more.

  • What are the key principles of RESTful API design?

    The key principles include statelessness (each request from a client contains all the information needed to understand and process the request), a uniform interface (well-defined conventions for resource representation and interaction), and client-server architecture for separation of concerns.

  • How do you perform CRUD operations using REST API?

    CRUD (Create, Read, Update, Delete) operations in REST API correspond to HTTP methods: Create: POST method, Read: GET method, Update: PUT or PATCH method, Delete: DELETE method

  • What is the purpose of HTTP status codes in REST API?

    HTTP status codes in REST API responses provide information about the success or failure of a request. Common codes include 200 OK for successful requests, 404 Not Found for resource not found, 201 Created for successful resource creation, and 400 Bad Request for invalid client requests.

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