Rust Web

HTTP-message = start-line
               *( header-field CRLF )
               CRLF
               [ message-body ]

start-line = request-line / status-line

request-line = method SP request-target SP HTTP-version CRLF

method = token

status-line = HTTP-version SP status-code SP reason-phrase CRLF

status-code = 3DIGIT

HTTP-version = HTTP-name "/" DIGIT "." DIGIT