RESTful APIs provide a set of guidelines for creating web services that are scalable, stateless, and easily maintainable. Here are some key characteristics and principles of REST APIs:
- Statelessness:
- One of the central principles of REST is statelessness. Each request from a client to a server must contain all the information needed to understand and process the request. The server should not store any information about the client’s state between requests. This enhances scalability and simplifies the architecture.
- Resources:
- REST APIs model resources as entities that can be identified by unique URIs (Uniform Resource Identifiers). Resources can represent data objects, services, or entities in the application. For example, a RESTful API for a blogging platform might have resources for blog posts, users, and comments.
- HTTP Methods:
- RESTful APIs use standard HTTP methods to perform operations on resources. The most common HTTP methods used in RESTful APIs are:
- GET: Retrieve a resource.
- POST: Create a new resource.
- PUT or PATCH: Update an existing resource.
- DELETE: Remove a resource.
- RESTful APIs use standard HTTP methods to perform operations on resources. The most common HTTP methods used in RESTful APIs are: