Libbitcoin Client - Revision history

Evoskuil: /* Dependencies (Version3) */ change libbitcoin to libbitcoin-system

2021-03-09T01:23:26Z

Dependencies (Version3): change libbitcoin to libbitcoin-system

← Older revision		Revision as of 01:23, 9 March 2021
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	* [https://github.com/zeromq/libzmq zmq]		* [https://github.com/zeromq/libzmq zmq]
	* [[Libbitcoin_Protocol\|libbitcoin-protocol]]		* [[Libbitcoin_Protocol\|libbitcoin-protocol]]
	* [[Libbitcoin_Common\|libbitcoin]]		* [[Libbitcoin_Common\|libbitcoin-system]]

	==See Also==		==See Also==

Evoskuil at 20:12, 8 March 2017

2017-03-08T20:12:47Z

@@ Line 36: / Line 36: @@
       client.wait();
       return 0;
+  }

Evoskuil: /* Example (Version3) */ Revert previous (wrong page).

2017-03-08T20:12:05Z

Example (Version3): Revert previous (wrong page).

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Evoskuil: /* Example (Version3) */

2017-03-08T20:05:50Z

Example (Version3)

← Older revision		Revision as of 20:05, 8 March 2017
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	const auto ec = started.get_future().get();		const auto ec = started.get_future().get();

	if (ec)		if (ec)
	{		{

Evoskuil: /* Example (Version3) */ Update example for release code.

2017-03-08T20:05:06Z

Example (Version3): Update example for release code.

← Older revision		Revision as of 20:05, 8 March 2017
Line 2:		Line 2:

	==Example (Version3) ==		==Example (Version3) ==
	#include <~~cstddef~~>		#include <future>
	#include <iostream>		#include <iostream>
	#include <bitcoin/~~client~~.hpp>		#include <bitcoin/node.hpp>

	int main(~~int argc, char* argv[]~~)		int main()
	{		{
	if (~~argc~~ < 2)		std::cout << "Starting up...";

			bc::threadpool pool(1);
			bc::node::configuration settings(bc::config::settings::mainnet);
			bc::node::full_node node(settings);
			std::promise<bc::code> started;

			const auto handle_started = [&started](const bc::code& ec)
	{		{
	~~std::cerr << "server address required" << std::endl;~~		started.set_value(ec);
	~~return 1~~;		};
	}

	// ~~3 second timeout, 0 retries~~		// To also "run" the node on the p2p nework next call node.run(...).
	~~bc::client::obelisk_client client~~(~~3, 0~~);		node.start(handle_started);

	if (~~!client~~.~~connect~~(~~{ argv[1] }~~))		const auto ec = started.get_future().get();
			if (ec)
	{		{
	std::~~cerr~~ << "~~connect~~ failed: " << ~~argv[1]~~ << std::endl;		std::cout << "The node failed to start: " << ec.message() << std::endl;
	return 1;		return 1;
	}		}

	const auto ~~on_error~~ = [](const bc::code& ec)		const auto display_history = [](const bc::code& code,
			const bc::chain::history_compact::list& history)
	{		{
	std::~~cerr~~ << "~~fetch failed~~: " << ec.message() << std::endl;		if (code)
			{
			std::cout << "Error: " << code.message();
			return;
			}

			for (const auto& entry : history)
			{
			auto output = (entry.kind == bc::chain::point_kind::output);
			auto kind = (output ? "output" : "spend");
			auto height = entry.height;
			auto hash = bc::encode_hash(entry.point.hash());
			auto index = entry.point.index();

			// The value for a spend is the entry.point.checksum() of the
			// output. This allows the spends to be correlated to outputs.
			std::cout << "History..." << std::endl;
			std::cout << "Kind: " << kind << std::endl;
			std::cout << "Height: " << height << std::endl;
			std::cout << "Point: " << hash << ":" << index << std::endl;
			std::cout << "Value: " << entry.value << std::endl;
			std::cout << std::endl;
			}
	};		};

	~~const auto on_done = []~~(~~size_t height~~)		while (true)
	{		{
	std::cout << "~~height~~: " << ~~height~~ << std::endl;		std::cout << "Type a bitcoin address or 'stop' to exit." << std::endl;
	};
			std::string command;
			std::getline(std::cin, command);

			if (command == "stop")
			break;

			bc::wallet::payment_address address(command);

			if (!address)
			{
			std::cout << "Invalid address: " << command << std::endl;
			continue;
			}

			// Accept up to 1000 rows and search from block 0.
			node.chain().fetch_history(address, 1000, 0, display_history);
			}

	~~client~~.~~blockchain_fetch_last_height(on_error, on_done);~~		std::cout << "Shutting down...";
	~~client~~.~~wait()~~;

	return 0;		return 0;

Evoskuil: /* Authentication and Encryption */

2017-03-08T17:14:28Z

Authentication and Encryption

← Older revision		Revision as of 17:14, 8 March 2017
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	The API incorporates [http://curvezmq.org CurveZMQ], "An authentication and encryption protocol for ZeroMQ."<ref>[http://curvezmq.org CurveZMQ - Security for ZeroMQ]</ref><ref>[http://rfc.zeromq.org/spec:26 CurveZMQ Authentication and Encryption Protoco]</ref> CurveZMQ is based on [http://curvecp.org CurveCP] and [http://nacl.cr.yp.to NaCl], providing fast, secure elliptic-curve crypto.<ref>[http://cr.yp.to/highspeed/coolnacl-20120725.pdf "The security impact of a new cryptographic library" - Daniel J. Bernstein et. al.]</ref>		The API incorporates [http://curvezmq.org CurveZMQ], "An authentication and encryption protocol for ZeroMQ."<ref>[http://curvezmq.org CurveZMQ - Security for ZeroMQ]</ref><ref>[http://rfc.zeromq.org/spec:26 CurveZMQ Authentication and Encryption Protoco]</ref> CurveZMQ is based on [http://curvecp.org CurveCP] and [http://nacl.cr.yp.to NaCl], providing fast, secure elliptic-curve crypto.<ref>[http://cr.yp.to/highspeed/coolnacl-20120725.pdf "The security impact of a new cryptographic library" - Daniel J. Bernstein et. al.]</ref>

	Private key certificates are self-generated as [http://rfc.zeromq.org/spec:4 ZPL (ZeroMQ Property Language)] encoded files with public and secret key properties. The keys are [http://rfc.zeromq.org/spec:32 Z85 - (ZeroMQ Base-85 Encoding Algorithm)] encoded elliptic curve points. Keys can be fabricated by Bitcoin Explorer (bx)<ref>[https://github.com/libbitcoin/libbitcoin-explorer/wiki/bx-cert-new Bitcoin Explorer cert-new command.]</ref> as follows.		Private key certificates are self-generated as [http://rfc.zeromq.org/spec:4 ZPL (ZeroMQ Property Language)] encoded files with public and secret key properties. The keys are [http://rfc.zeromq.org/spec:32 Z85 - (ZeroMQ Base-85 Encoding Algorithm)] encoded elliptic curve points. Keys can be fabricated by Bitcoin Explorer (bx)<ref>[https://github.com/libbitcoin/libbitcoin-explorer/wiki/bx-cert-new Bitcoin Explorer cert-new command.]</ref> as follows (version 2).

	$ bx cert-new citizen4.private		$ bx cert-new citizen4.private

Evoskuil: /* Example (Version3) */

2016-05-27T23:44:09Z

Example (Version3)

← Older revision		Revision as of 23:44, 27 May 2016
Line 23:		Line 23:
	}		}

	const auto on_error = [](bc::code ec)		const auto on_error = [](const bc::code& ec)
	{		{
	std::cerr << "fetch failed: " << ec.message() << std::endl;		std::cerr << "fetch failed: " << ec.message() << std::endl;

Evoskuil: /* Example (Version2) */

2016-05-27T23:43:11Z

Example (Version2)

← Older revision		Revision as of 23:43, 27 May 2016
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	==Example (Version2) ==		==Example (Version2) ==
			#include <cstddef>
	#include <iostream>		#include <iostream>
	#include <czmq++/czmqpp.hpp>		#include <czmq++/czmqpp.hpp>

Evoskuil: /* Example (Version3) */

2016-05-27T23:42:44Z

Example (Version3)

← Older revision		Revision as of 23:42, 27 May 2016
Line 2:		Line 2:

	==Example (Version3) ==		==Example (Version3) ==
			#include <cstddef>
	#include <iostream>		#include <iostream>
	#include <bitcoin/client.hpp>		#include <bitcoin/client.hpp>
Line 14:		Line 15:

	// 3 second timeout, 0 retries		// 3 second timeout, 0 retries
	client::obelisk_client client(3, 0);		bc::client::obelisk_client client(3, 0);

	if (!client.connect({ argv[1] }))		if (!client.connect({ argv[1] }))
Line 22:		Line 23:
	}		}

	const auto on_error = [](code ec)		const auto on_error = [](bc::code ec)
	{		{
	std::cerr << "fetch failed: " << ec.message() << std::endl;		std::cerr << "fetch failed: " << ec.message() << std::endl;

Evoskuil: /* Example (Version3) */

2016-05-27T23:41:02Z

Example (Version3)

← Older revision		Revision as of 23:41, 27 May 2016
Line 18:		Line 18:
	if (!client.connect({ argv[1] }))		if (!client.connect({ argv[1] }))
	{		{
	std::cerr << "~~timeout~~: " << argv[1] << std::endl;		std::cerr << "connect failed: " << argv[1] << std::endl;
	return 1;		return 1;
	}		}
Line 24:		Line 24:
	const auto on_error = [](code ec)		const auto on_error = [](code ec)
	{		{
	std::cerr << "~~error~~: " << ec.message() << std::endl;		std::cerr << "fetch failed: " << ec.message() << std::endl;
	};		};