HTTP 101 Switching Protocols vs 415 Unsupported Media Type
HTTP 101 (Switching Protocols) is a 1xx Informational response, while 415 (Unsupported Media Type) is a 4xx Client Error response. 101 indicates that the server understands the Upgrade header field request and indicates which protocol it is switching to. In contrast, 415 means that the server refuses to accept the request because the Content-Type is not supported.
Mô tả
The server understands the Upgrade header field request and indicates which protocol it is switching to.
Khi bạn thấy mã này
When upgrading from HTTP/1.1 to WebSocket, or to HTTP/2.
Cách khắc phục
This is normal behavior during protocol upgrades. Ensure your client supports the target protocol.
Mô tả
The server refuses to accept the request because the Content-Type is not supported.
Khi bạn thấy mã này
When sending JSON to an endpoint that only accepts XML, or missing the Content-Type header.
Cách khắc phục
Set the correct Content-Type header matching the data format you're sending.
Sự khác biệt chính
101 is a 1xx Informational response, while 415 is a 4xx Client Error response.
HTTP 101: The server understands the Upgrade header field request and indicates which protocol it is switching to.
HTTP 415: The server refuses to accept the request because the Content-Type is not supported.
You encounter 101 when when upgrading from HTTP/1.1 to WebSocket, or to HTTP/2.
You encounter 415 when when sending JSON to an endpoint that only accepts XML, or missing the Content-Type header.
Khi nào dùng cái nào
For 101 (Switching Protocols): This is normal behavior during protocol upgrades. Ensure your client supports the target protocol. For 415 (Unsupported Media Type): Set the correct Content-Type header matching the data format you're sending.