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In HTTP/1.1, response status codes are categorized to indicate the result of a client’s request. Here’s a detailed explanation of the 2xx class of HTTP response status codes:

2xx Success Codes:

Definition: The 2xx class of status codes indicates that the client’s request was successfully received, understood, and accepted by the server.

Common Codes:

200 OK: The request has succeeded.

201 Created: The request has been fulfilled and resulted in a new resource being created.

202 Accepted: The request has been accepted for processing, but the processing is not complete.

204 No Content: The server successfully processed the request, but there is no content to return.

Importance:

Client Acknowledgment: These codes inform the client that their request was processed successfully, enabling appropriate client-side actions.

RESTful Standards: Adhering to these standards ensures consistent and predictable API behavior.

References

IETF RFC 7231: HTTP/1.1 Semantics and Content

HTTP Status Codes: HTTP Status Code Definitions