HTTP 201 Created vs 426 Upgrade Required
HTTP 201 (Created) is a 2xx Success response, while 426 (Upgrade Required) 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, 426 means that the server refuses to perform the request using the current protocol but might after the client upgrades to a different protocol.
説明
The request succeeded and a new resource was created. Typically returned after POST or PUT requests that create a new entity.
このコードが表示される場合
After successfully creating a new user, post, order, or other resource via a REST API.
解決方法
No fix needed. Check the Location header for the URL of the new resource.
説明
The server refuses to perform the request using the current protocol but might after the client upgrades to a different protocol.
このコードが表示される場合
When a server requires HTTPS or a newer protocol version.
解決方法
Switch to the protocol specified in the Upgrade response header.
主な違い
201 is a 2xx Success response, while 426 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 426: The server refuses to perform the request using the current protocol but might after the client upgrades to a different protocol.
You encounter 201 when after successfully creating a new user, post, order, or other resource via a REST API.
You encounter 426 when when a server requires HTTPS or a newer protocol version.
どちらをいつ使うか
For 201 (Created): No fix needed. Check the Location header for the URL of the new resource. For 426 (Upgrade Required): Switch to the protocol specified in the Upgrade response header.