Qpid Proton C++ API  0.36.0

The server part of a request-response example, that receives requests via the examples node, converts the body to uppercase and sends the result back to the indicated reply address.

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#include <iostream>
#include <map>
#include <string>
#include <cctype>
class server : public proton::messaging_handler {
std::string conn_url_;
std::string addr_;
std::map<std::string, proton::sender> senders_;
server(const std::string& u, const std::string& a) :
conn_url_(u), addr_(a) {}
conn_ = c.connect(conn_url_);
std::cout << "Server connected to " << conn_url_ << std::endl;
std::string to_upper(const std::string& s) {
std::string uc(s);
size_t l = uc.size();
for (size_t i=0; i<l; i++) {
uc[i] = static_cast<char>(std::toupper(uc[i]));
return uc;
std::cout << "Received " << m.body() << std::endl;
std::string reply_to = m.reply_to();
if (!senders_[reply_to]) {
senders_[reply_to] = conn_.open_sender(reply_to);
int main(int argc, char** argv) {
try {
std::string conn_url = argc > 1 ? argv[1] : "//";
std::string addr = argc > 2 ? argv[2] : "examples";
server srv(conn_url, addr);
return 0;
} catch (const std::exception& e) {
std::cerr << e.what() << std::endl;
return 1;
A connection to a remote AMQP peer.
Definition: connection.hpp:47
receiver open_receiver(const std::string &addr)
Open a receiver for addr on default_session().
sender open_sender(const std::string &addr)
Open a sender for addr on default_session().
A top-level container of connections, sessions, and links.
Definition: container.hpp:49
void run()
Run the container in the current thread.
returned< connection > connect(const std::string &conn_url, const connection_options &conn_opts)
Connect to conn_url and send an open request to the remote peer.
A received message.
Definition: delivery.hpp:40
An AMQP message.
Definition: message.hpp:50
void to(const std::string &)
Set the destination address.
void reply_to(const std::string &)
Set the address for replies.
void correlation_id(const message_id &)
Set the ID for matching related messages.
void body(const value &x)
Set the body. Equivalent to body() = x.
Handler for Proton messaging events.
Definition: messaging_handler.hpp:69
virtual void on_message(delivery &, message &)
A message is received.
virtual void on_container_start(container &)
The container event loop is starting.
tracker send(const message &m)
Send a message on the sender.
A connection to a remote AMQP peer.
A top-level container of connections, sessions, and links.
An AMQP message.
An AMQP message ID.
Handler for Proton messaging events.