I\'m not using beast http server in my project but I was searching for a solution to parse an http request in form of std::string in my program ,is it possible to use boost/
Yes it is possible:
std::string s = "POST /cgi/message.php HTTP/1.1\r\n" "Content-Length: 5\r\n" "\r\n" "abcde"; error_code ec; request_parser<string_body> p; p.put(boost::asio::buffer(s), ec);