HTTP 201 Created vs 431 Request Header Fields Too Large
HTTP 201 (Created) is a 2xx Success response, while 431 (Request Header Fields Too Large) is a 4xx Client 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, 431 means that the server refuses to process the request because an individual header field or all headers collectively are too large.
Description
The request succeeded and a new resource was created. Typically returned after POST or PUT requests that create a new entity.
Quand vous le voyez
After successfully creating a new user, post, order, or other resource via a REST API.
Comment résoudre
No fix needed. Check the Location header for the URL of the new resource.
Description
The server refuses to process the request because an individual header field or all headers collectively are too large.
Quand vous le voyez
When cookies accumulate to an excessive size, or a single header (like Authorization) is too long.
Comment résoudre
Reduce header sizes. Clear excessive cookies. Use shorter tokens.
Différences clés
201 is a 2xx Success response, while 431 is a 4xx Client 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 431: The server refuses to process the request because an individual header field or all headers collectively are too large.
You encounter 201 when after successfully creating a new user, post, order, or other resource via a REST API.
You encounter 431 when when cookies accumulate to an excessive size, or a single header (like Authorization) is too long.
Quand utiliser lequel
For 201 (Created): No fix needed. Check the Location header for the URL of the new resource. For 431 (Request Header Fields Too Large): Reduce header sizes. Clear excessive cookies. Use shorter tokens.