Libbitcoin Network

From Bitcoin Wiki
Revision as of 11:27, 4 February 2016 by Evoskuil (talk | contribs) (Example)
Jump to: navigation, search

The libbitcoin-network library is a partial implementation of the Bitcoin P2P network protocol. Excluded are all sub-protocols that require access to a blockchain. The libbitcoin-node library extends this P2P networking capability and incorporates libbitcoin-blockchain in order to implement a full node. The libbitcoin-explorer library uses the P2P networking capability to post transactions to the P2P network.


#include <future>
#include <bitcoin/network.hpp>

// Send a transaction to a single P2P node.
int main(int argc, char* argv[])
    using namespace bc;
    data_chunk decoded;
    if (argc < 1 || !decode_base16(decoded, argv[0]))
        return -1;
    const auto tx = chain::transaction::factory_from_data(decoded);
    auto settings = network::settings::mainnet;
    settings.inbound_port = 0;
    settings.host_pool_capacity = 0;
    settings.outbound_connections = 0;
    settings.relay_transactions = false;
    network::p2p network(settings);
    std::promise complete;
    const auto send_handler = [&complete](const code& ec)
    const auto connect_handler = [&tx , &send_handler](const code& ec,
        network::channel::ptr node)
        if (!ec)
            node->send(tx, send_handler);
    return complete.get_future().get() ? -1 : 0;


  • The P2P protocol was originally contained within the libbitcoin library.
  • In the winter of 2014 William Swanson reorganized libbitcoin sources[1] in accordance with the roadmap[2] agreed in Toronto earlier that year.
  • Later sources were moved into the libbitcoin::network namespace, and by early 2016 the namespace was forked into its own repository and integrated with dependent repositories as of version 3.


See Also