HTTP Request is a message within a request/response sequence, according to HTTP specification. May also refer an HttpRequest class in software frameworks and libraries that automates relevant functionality

From W3C specification:

A request message from a client to a server includes, within the first line of that message, the method to be applied to the resource, the identifier of the resource, and the protocol version in use.

    Request       = Request-Line              ;
                    *(( general-header        ;
                     | request-header         ;
                     | entity-header ) CRLF)  ;
                    CRLF
                    [ message-body ]          ;

See also: