The server has received the request headers and the client should proceed to send the request body.

The server agrees to switch protocols as requested by the client.

The request has succeeded. The response payload depends on the request method.

The request has succeeded and a new resource has been created.

The request has succeeded but returns no message body.

The requested resource has been permanently moved to a new URL.

The requested resource temporarily resides under a different URL.

The client's cached version of the requested resource is up to date.

The server cannot process the request due to client error.

Authentication is required and has failed or not been provided.

Server understood request but refuses to authorize it.

The requested resource could not be found on the server.

User has sent too many requests in a given amount of time.

The server encountered an unexpected condition.

The server received an invalid response from an upstream server.

The server is temporarily unable to handle the request.

The server did not receive a timely response from an upstream server.