In a typical REST request, the components are called in a specific order to handle the client’s request and provide the response. Here’s the order and detailed explanation:
API Client:
Initiates Request: The client (e.g., web or mobile application) sends a request to the API endpoint.
API Interface:
Gateway/Proxy: This layer is typically managed by an API gateway or proxy, which handles the incoming request, applies security policies, and routes it to the appropriate backend service.
Responsibilities: Includes request validation, rate limiting, authentication, and authorization.
API Implementation:
Backend Service: The actual implementation of the API logic resides here. It processes the request, interacts with the necessary databases or external services, and generates the response.
References
REST API Design: RESTful Web Services
API Gateway: What is an API Gateway?
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