HTTP 101 Switching Protocols vs 201 Created
HTTP 101 (Switching Protocols) is a 1xx Informational response, while 201 (Created) is a 2xx Success response. 101 indicates that the server understands the Upgrade header field request and indicates which protocol it is switching to. In contrast, 201 means that the request succeeded and a new resource was created. Typically returned after POST or PUT requests that create a new entity.
Описание
The server understands the Upgrade header field request and indicates which protocol it is switching to.
Когда вы это видите
When upgrading from HTTP/1.1 to WebSocket, or to HTTP/2.
Как исправить
This is normal behavior during protocol upgrades. Ensure your client supports the target protocol.
Описание
The request succeeded and a new resource was created. Typically returned after POST or PUT requests that create a new entity.
Когда вы это видите
After successfully creating a new user, post, order, or other resource via a REST API.
Как исправить
No fix needed. Check the Location header for the URL of the new resource.
Ключевые различия
101 is a 1xx Informational response, while 201 is a 2xx Success response.
HTTP 101: The server understands the Upgrade header field request and indicates which protocol it is switching to.
HTTP 201: The request succeeded and a new resource was created. Typically returned after POST or PUT requests that create a new entity.
You encounter 101 when when upgrading from HTTP/1.1 to WebSocket, or to HTTP/2.
You encounter 201 when after successfully creating a new user, post, order, or other resource via a REST API.
Когда что использовать
For 101 (Switching Protocols): This is normal behavior during protocol upgrades. Ensure your client supports the target protocol. For 201 (Created): No fix needed. Check the Location header for the URL of the new resource.