Deadline expired before operation could complete.
401 Unauthorized (actually does mean unauthenticated according to RFC 7235)
403 Forbidden
404 Not Found. Some requested entity (file or directory) was not found.
429 Too Many Requests
Client specified an invalid argument. 4xx.
501 Not Implemented
503 Service Unavailable
Other/generic 5xx.
Unknown. Any non-standard HTTP status code.
The operation was cancelled (typically by the user).
Already exists (409)
Operation was rejected because the system is not in a state required for the operation's
The operation was aborted, typically due to a concurrency issue.
Operation was attempted past the valid range.
Unrecoverable data loss or corruption
The operation completed successfully.