A successful response.

Bad Request: indicates that the server cannot or will not process the request due to something that is perceived to be a client error (for example, malformed request syntax, invalid request message framing, or deceptive request routing)

Unauthorized: indicates that the client request has not been completed because it lacks valid authentication credentials for the requested resource

Forbidden: indicates that the server understands the request but refuses to authorize it

Not Found: indicates that the server cannot find the requested resource

Internal Server Error: indicates that the server encountered an unexpected condition that prevented it from fulfilling the request

Service Unavailable: indicates that the server is not ready to handle the request.

An unexpected error response.