<ul><li>HTTP status codes are essential for communication between clients and servers in web APIs.</li><li>HTTP status codes are grouped into five classes: 1xx (Informational), 2xx (Successful), 3xx (Redirection), 4xx (Client Error), and 5xx (Server Error).</li><li>2xx codes indicate the request was successfully received, understood, and processed.</li><li>4xx codes indicate the client sent an invalid request. </li><li>5xx codes indicate the server failed to fulfil a valid request.</li><li>Some best practices include using specific codes instead of generic ones and avoiding vague 400 errors.</li><li>Log 5xx errors for debugging but mask sensitive details in responses.</li><li>Avoid using 5xx errors in development; they signal unhandled exceptions.</li><li>Leverage 304 to reduce bandwidth via caching.</li><li>Return 401 for authentication failures and 403 for authorization issues.</li></ul>

🌐 HTTP Status Codes: A Comprehensive Guide to API Responses

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