lndmockup.js

var grpc = require("grpc");

// set log verbosity level
grpc.setLogVerbosity(0);
  
// load app default configuration data
var config = require("./config/config");

// load proto file
var lnrpcProto = grpc.load(config.lndProto);
var lnrpc = lnrpcProto.lnrpc

/**
 * TODO
 */
function empty(call, callback) {
	callback(null, { });
}

/**
 * TODO
 */
function getInfo(call, callback) {
	var response = {
		identity_pubkey: "03c892e3f3f077ea1e381c081abb36491a2502bc43ed37ffb82e264224f325ff27",
		alias: "",
		num_pending_channels: 0,
		num_active_channels: 1,
		num_peers: 2,
		block_height: 1088114,
		block_hash: "0000000000000879ae5706f8a665d46f0efe8b4f760f622262e844f5c31ef6fb",
		synced_to_chain: true,
		testnet: true
	};
	callback(null, response);
}

/**
 * TODO
 */
function getNetworkInfo(call, callback) {
	var response = {
		graph_diameter: 0,
		avg_out_degree: 1.1016949152542372,
		max_out_degree: 44,
		num_nodes: 59,
		num_channels: 65,
		total_network_capacity: 1184278595,
		avg_channel_size: 18219670.692307692,
		min_channel_size: -4400,
		max_channel_size: 300000000
	};
	callback(null, response);
}

/**
 * TODO
 */
function walletBalance(call, callback) {
	var response = {
		balance: 0.09943829
	};
	callback(null, response);
}

/**
 * TODO
 */
function channelBalance(call, callback) {
	var response = {
		balance: 3002010
	};
	callback(null, response);
}

/**
 * TODO
 */
function listPeers(call, callback) {
	var response = {
		peers: [
			{
				pub_key: "036a0c5ea35df8a528b98edf6f290b28676d51d0fe202b073fe677612a39c0aa09",
				peer_id: 1,
				address: "159.203.125.125:10011",
				bytes_sent: 74268,
				bytes_recv: 104836,
				sat_sent: 0,
				sat_recv: 2000,
				inbound: false,
				ping_time: 85241
			},
			{
				pub_key: "034106ba0a6ffdb98f345b2d39173d236575aa9b18f68542db7c5dc7d561ff68da",
				peer_id: 3,
				address: "107.131.125.191:51953",
				bytes_sent: 73518,
				bytes_recv: 65666,
				sat_sent: 0,
				sat_recv: 0,
				inbound: false,
				ping_time: 175660
			}
		]
	};
	callback(null, response);
}

/**
 * TODO
 */
function listChannels(call, callback) {
	var response = {
		channels: [
			{
				remote_pubkey: "036a0c5ea35df8a528b98edf6f290b28676d51d0fe202b073fe677612a39c0aa09",
				channel_point: "5780f0165552e5d36d1fba7fcd43f555cb3abfa75cc636318595f823e8886261:0",
				chan_id: "1196350014884020224",
				capacity: 4005000,
				local_balance: 3002000,
				remote_balance: 998000,
				unsettled_balance: 0,
				total_satoshis_sent: 0,
				total_satoshis_received: 2000,
				num_updates: 4000,
				pending_htlcs: []
			},
			{
				remote_pubkey: "03f5f555553eb38ba65bac34b58a042c4fc9bac2078d1d5a978a80affae6cddf4b",
				channel_point: "bce9f7f56e580f599fffc323ae337c52c3636c020f5e8220c60ff56524a8c20e:0",
				chan_id: "1196348915372654592",
				capacity: "7000",
				local_balance: "10",
				remote_balance: "1990",
				unsettled_balance: "0",
				total_satoshis_sent: "1000",
				total_satoshis_received: "10",
				num_updates: "4",
				pending_htlcs: []
			}
		]
	};
	callback(null, response);
}

/**
 * TODO
 */
function pendingChannels(call, callback) {
	var response = {
		pending_channels: [
			{
				peer_id: 1,
				identity_key: "036a0c5ea35df8a528b98edf6f290b28676d51d0fe202b073fe677612a39c0aa09",
				channel_point: "cb7ee1e3018c61a271347e8a8dd1147f6e508a3ff32ecfb1335cbc17ba24e96a:0",
				capacity: 1500000,
				local_balance: 500000,
				remote_balance: 1000000,
				closing_txid: "",
				status: "OPENING"
			}
		]
	};
	callback(null, response);
}

/**
 * TODO
 */
function listInvoices(call, callback) {
	var response = {
		invoices: [
			{
				memo: "test home->droplet",
				receipt: Buffer.from([]),
				r_preimage: Buffer.from([
					26, 159, 8, 50, 177, 27, 124, 82,
					151, 41, 7, 110, 78, 21, 185, 199,
					28, 207, 117, 78, 22, 39, 32, 185,
					61, 25, 92, 30, 14, 209, 220, 22
				]),
				r_hash: Buffer.from([]),
				value: 10,
				settled: true,
				creation_date: 1486625141,
				settle_date: 0,
				payment_request: "yxrjfa9u6b56w8tadorbiq3sjrpnkyihexsux97afaurrj8urz91qqfhdmamza7ykerr4iuwgj1pr4d9zot4bubauagj3we6k11r6eh8yyyyyyyyyyyyw3418wwy"
			}
		]
	};
	callback(null, response);
}

/**
 * TODO
 */
function listPayments(call, callback) {
	var response = {
		payments: [
			{
				payment_hash: "d4c96aa1853976a9636ebca51ed937903173b3c91eec5254d8addb19cef51242",
				value: "1000",
				creation_date: "1486625092",
				path: [
					"03f5f555553eb38ba65bac34b58a042c4fc9bac2078d1d5a978a80affae6cddf4b"
				],
				fee: "0"
			}
		]
	};
	callback(null, response);
}

/**
 * Get a new server with the handler functions in this file bound to the methods
 * it serves.
 * @return {Server} The new server object
 */
function getServer() {
	var server = new grpc.Server();
	server.addProtoService(lnrpc.Lightning.service, {
		getInfo: getInfo,
		getNetworkInfo: getNetworkInfo,
		walletBalance: walletBalance,
		channelBalance: channelBalance,
		getTransactions: empty,
		sendCoins: empty,
		subscribeTransactions: empty,
		sendMany: empty,
		newAddress: empty,
		newWitnessAddress: empty,
		connectPeer: empty,
		listPeers: listPeers,
		pendingChannels: pendingChannels,
		listChannels: listChannels,
		openChannelSync: empty,
		openChannel: empty,
		closeChannel: empty,
		sendPayment: empty,
		sendPaymentSync: empty,
		addInvoice: empty,
		listInvoices: listInvoices,
		lookupInvoice: empty,
		subscribeInvoices: empty,
		decodePayReq: empty,
		listPayments: listPayments,
		deleteAllPayments: empty,
		describeGraph: empty,
		getChanInfo: empty,
		getNodeInfo: empty,
		queryRoute: empty,
		setAlias: empty,
		debugLevel: empty,
	});
	return server;
}

if (require.main === module) {
	var server = getServer();
	var lndPort = config.lndHost.split(':')[1];
	server.bind("0.0.0.0:" + lndPort, grpc.ServerCredentials.createInsecure());
	server.start();
	console.log("lnd mockup server started, listening on port " + lndPort);
}

exports.getServer = getServer;