HTTP 201 Created vs 502 Bad Gateway
HTTP 201 (Created) is a 2xx Success response, while 502 (Bad Gateway) is a 5xx Server Error response. 201 indicates that the request succeeded and a new resource was created. Typically returned after POST or PUT requests that create a new entity. In contrast, 502 means that the server, acting as a gateway or proxy, received an invalid response from the upstream server.
Deskripsi
The request succeeded and a new resource was created. Typically returned after POST or PUT requests that create a new entity.
Ketika Anda Melihatnya
After successfully creating a new user, post, order, or other resource via a REST API.
Cara Memperbaiki
No fix needed. Check the Location header for the URL of the new resource.
Deskripsi
The server, acting as a gateway or proxy, received an invalid response from the upstream server.
Ketika Anda Melihatnya
When Nginx/Apache can't reach the application server (e.g., Gunicorn is down, upstream timeout).
Cara Memperbaiki
Check if the upstream server is running. Verify proxy configuration. Check for upstream timeouts.
Perbedaan Utama
201 is a 2xx Success response, while 502 is a 5xx Server Error response.
HTTP 201: The request succeeded and a new resource was created. Typically returned after POST or PUT requests that create a new entity.
HTTP 502: The server, acting as a gateway or proxy, received an invalid response from the upstream server.
You encounter 201 when after successfully creating a new user, post, order, or other resource via a REST API.
You encounter 502 when when Nginx/Apache can't reach the application server (e.g., Gunicorn is down, upstream timeout).
Kapan Menggunakan Yang Mana
For 201 (Created): No fix needed. Check the Location header for the URL of the new resource. For 502 (Bad Gateway): Check if the upstream server is running. Verify proxy configuration. Check for upstream timeouts.