Files
boost_beast/examples/http_example.cpp
Vinnie Falco e8be3fd7d3 New HTTP interfaces (API Change):
fix #123
fix #154
fix #265

This completely replaces the HTTP parser used to read and
parse incoming messages. The new version is faster than
the old one, and written in fewer lines. A summary of
changes:

* parse and async_parse renamed to read and async_read

* basic_parser is optimized for linear buffers,
  use flat_streambuf for the best performance with these
  functions:

  - http::read
  - http::read_some
  - http::async_read
  - http::async_read_some

* The overloads of read() and async_read() which take
  just a header have been removed, since they would
  throw away important parse metadata.

* The derived class callbacks for basic_parser have
  been streamlined. All strings passed to callbacks
  are presented in their entirety, instead of being
  provided in pieces.

These changes allow use-cases that were previously
difficult or impossible, such as:

- Efficient relaying

- Late body type commitment

- Expect: 100-continue handling
2017-07-20 08:12:15 -07:00

41 lines
1.2 KiB
C++

//
// Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#include <beast/http.hpp>
#include <boost/asio.hpp>
#include <boost/lexical_cast.hpp>
#include <iostream>
#include <string>
int main()
{
// Normal boost::asio setup
std::string const host = "boost.org";
boost::asio::io_service ios;
boost::asio::ip::tcp::resolver r{ios};
boost::asio::ip::tcp::socket sock{ios};
boost::asio::connect(sock,
r.resolve(boost::asio::ip::tcp::resolver::query{host, "http"}));
// Send HTTP request using beast
beast::http::request<beast::http::string_body> req;
req.method = "GET";
req.url = "/";
req.version = 11;
req.fields.replace("Host", host + ":" +
boost::lexical_cast<std::string>(sock.remote_endpoint().port()));
req.fields.replace("User-Agent", "Beast");
beast::http::prepare(req);
beast::http::write(sock, req);
// Receive and print HTTP response using beast
beast::streambuf sb;
beast::http::response<beast::http::streambuf_body> resp;
beast::http::read(sock, sb, resp);
std::cout << resp;
}