HTTP 101 Switching Protocols vs 207 Multi-Status
HTTP 101 (Switching Protocols) is a 1xx Informational response, while 207 (Multi-Status) 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, 207 means that the response body contains status information for multiple resources, in situations where multiple status codes might be appropriate (WebDAV).
Description
The server understands the Upgrade header field request and indicates which protocol it is switching to.
When You See It
When upgrading from HTTP/1.1 to WebSocket, or to HTTP/2.
How to Fix
This is normal behavior during protocol upgrades. Ensure your client supports the target protocol.
Description
The response body contains status information for multiple resources, in situations where multiple status codes might be appropriate (WebDAV).
When You See It
In WebDAV operations that affect multiple resources simultaneously.
How to Fix
Parse the XML body to check the status of each individual resource.
Key Differences
101 is a 1xx Informational response, while 207 is a 2xx Success response.
HTTP 101: The server understands the Upgrade header field request and indicates which protocol it is switching to.
HTTP 207: The response body contains status information for multiple resources, in situations where multiple status codes might be appropriate (WebDAV).
You encounter 101 when when upgrading from HTTP/1.1 to WebSocket, or to HTTP/2.
You encounter 207 when in WebDAV operations that affect multiple resources simultaneously.
When to Use Which
For 101 (Switching Protocols): This is normal behavior during protocol upgrades. Ensure your client supports the target protocol. For 207 (Multi-Status): Parse the XML body to check the status of each individual resource.