The server has received the request headers

The server is switching protocols

The request was successful

A new resource was created

Successful with no response body

Resource permanently moved

Resource temporarily moved

Resource has not been modified

Temporary redirect preserving method

Permanent redirect preserving method

The request was malformed

Authentication required

Access denied

Resource not found

HTTP method not supported

Request timed out

Request conflicts with current state

Resource no longer available

Request body too large

Content type not supported

I'm a teapot (RFC 2324)

Validation failed

Rate limit exceeded

Server encountered an error

Invalid response from upstream

Service is temporarily unavailable

Upstream server timed out