What status codes do you usually use when processing server responses?

The following HTTP status codes are typically used when processing server responses:

• 200 OK — the request was successful.
• 201 Created — the resource was successfully created (e.g., after a POST request).
• 204 No Content — the request was successful, but there is no response body.
• 400 Bad Request — client error, invalid or incorrect request.
• 401 Unauthorized — authentication is required.
• 403 Forbidden — access is denied.
• 404 Not Found — the resource was not found.
• 500 Internal Server Error — internal server error.
• 502 Bad Gateway, 503 Service Unavailable — server or service issues.

These codes help understand the result of the request and handle the response correctly on the client or in tests.