HTTP 401 Unauthorized vs 507 Insufficient Storage
HTTP 401 (Unauthorized) is a 4xx Client Error response, while 507 (Insufficient Storage) is a 5xx Server Error response. 401 indicates that the request requires user authentication. The response includes a WWW-Authenticate header indicating the authentication scheme. In contrast, 507 means that the server is unable to store the representation needed to complete the request (WebDAV).
Description
The request requires user authentication. The response includes a WWW-Authenticate header indicating the authentication scheme.
When You See It
When accessing a protected resource without credentials or with expired tokens.
How to Fix
Include valid authentication credentials (API key, Bearer token, Basic auth) in the Authorization header.
Description
The server is unable to store the representation needed to complete the request (WebDAV).
When You See It
When the server runs out of disk space during WebDAV operations.
How to Fix
Free up disk space on the server or increase storage capacity.
Key Differences
401 is a 4xx Client Error response, while 507 is a 5xx Server Error response.
HTTP 401: The request requires user authentication. The response includes a WWW-Authenticate header indicating the authentication scheme.
HTTP 507: The server is unable to store the representation needed to complete the request (WebDAV).
You encounter 401 when when accessing a protected resource without credentials or with expired tokens.
You encounter 507 when when the server runs out of disk space during WebDAV operations.
When to Use Which
For 401 (Unauthorized): Include valid authentication credentials (API key, Bearer token, Basic auth) in the Authorization header. For 507 (Insufficient Storage): Free up disk space on the server or increase storage capacity.