Ride-The-Lightning-RTL/backend/controllers/lnd/graph.js

import request from 'request-promise';
import { Logger } from '../../utils/logger.js';
import { Common } from '../../utils/common.js';
let options = null;
const logger = Logger;
const common = Common;
export const getAliasFromPubkey = (selNode, pubkey) => {
    options.url = selNode.settings.lnServerUrl + '/v1/graph/node/' + pubkey;
    return request(options).then((res) => {
        logger.log({ selectedNode: selNode, level: 'DEBUG', fileName: 'Graph', msg: 'Alias Received', data: res.node.alias });
        return res.node.alias;
    }).
        catch((err) => pubkey.substring(0, 20));
};
export const getDescribeGraph = (req, res, next) => {
    logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Graph', msg: 'Getting Network Graph..' });
    options = common.getOptions(req);
    if (options.error) {
        return res.status(options.statusCode).json({ message: options.message, error: options.error });
    }
    options.url = req.session.selectedNode.settings.lnServerUrl + '/v1/graph';
    request.get(options).then((body) => {
        logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Graph', msg: 'Network Graph Received', data: body });
        res.status(200).json(body);
    }).catch((errRes) => {
        const err = common.handleError(errRes, 'Graph', 'Describe Graph Error', req.session.selectedNode);
        return res.status(err.statusCode).json({ message: err.message, error: err.error });
    });
};
export const getGraphInfo = (req, res, next) => {
    logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Graph', msg: 'Getting Graph Information..' });
    options = common.getOptions(req);
    if (options.error) {
        return res.status(options.statusCode).json({ message: options.message, error: options.error });
    }
    options.url = req.session.selectedNode.settings.lnServerUrl + '/v1/graph/info';
    request.get(options).then((body) => {
        logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Graph', msg: 'Graph Information Received', data: body });
        res.status(200).json(body);
    }).catch((errRes) => {
        const err = common.handleError(errRes, 'Graph', 'Graph Information Error', req.session.selectedNode);
        return res.status(err.statusCode).json({ message: err.message, error: err.error });
    });
};
export const getGraphNode = (req, res, next) => {
    logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Graph', msg: 'Getting Graph Node Information..' });
    options = common.getOptions(req);
    if (options.error) {
        return res.status(options.statusCode).json({ message: options.message, error: options.error });
    }
    options.url = req.session.selectedNode.settings.lnServerUrl + '/v1/graph/node/' + req.params.pubKey;
    request(options).then((body) => {
        logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Graph', msg: 'Graph Node Information Received', data: body });
        res.status(200).json(body);
    }).catch((errRes) => {
        const err = common.handleError(errRes, 'Graph', 'Get Node Info Error', req.session.selectedNode);
        return res.status(err.statusCode).json({ message: err.message, error: err.error });
    });
};
export const getGraphEdge = (req, res, next) => {
    logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Graph', msg: 'Getting Graph Edge Information..' });
    options = common.getOptions(req);
    if (options.error) {
        return res.status(options.statusCode).json({ message: options.message, error: options.error });
    }
    options.url = req.session.selectedNode.settings.lnServerUrl + '/v1/graph/edge/' + req.params.chanid;
    request(options).then((body) => {
        logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Graph', msg: 'Graph Edge Information Received', data: body });
        res.status(200).json(body);
    }).catch((errRes) => {
        const err = common.handleError(errRes, 'Graph', 'Get Edge Info Error', req.session.selectedNode);
        return res.status(err.statusCode).json({ message: err.message, error: err.error });
    });
};
export const getQueryRoutes = (req, res, next) => {
    logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Graph', msg: 'Getting Graph Routes..' });
    options = common.getOptions(req);
    if (options.error) {
        return res.status(options.statusCode).json({ message: options.message, error: options.error });
    }
    options.url = req.session.selectedNode.settings.lnServerUrl + '/v1/graph/routes/' + req.params.destPubkey + '/' + req.params.amount;
    if (req.query.outgoing_chan_id) {
        options.url = options.url + '?outgoing_chan_id=' + req.query.outgoing_chan_id;
    }
    logger.log({ selectedNode: req.session.selectedNode, level: 'DEBUG', fileName: 'Graph', msg: 'Query Routes URL', data: options.url });
    request(options).then((body) => {
        logger.log({ selectedNode: req.session.selectedNode, level: 'DEBUG', fileName: 'Graph', msg: 'Query Routes Received', data: body });
        if (body.routes && body.routes.length && body.routes.length > 0 && body.routes[0].hops && body.routes[0].hops.length && body.routes[0].hops.length > 0) {
            return Promise.all(body.routes[0].hops?.map((hop) => getAliasFromPubkey(req.session.selectedNode, hop.pub_key))).
                then((values) => {
                body.routes[0].hops?.map((hop, i) => {
                    hop.hop_sequence = i + 1;
                    hop.pubkey_alias = values[i];
                    return hop;
                });
                logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Graph', msg: 'Graph Routes with Alias Received', data: body });
                res.status(200).json(body);
            }).
                catch((errRes) => {
                const err = common.handleError(errRes, 'Graph', 'Get Query Routes Error', req.session.selectedNode);
                return res.status(err.statusCode).json({ message: err.message, error: err.error });
            });
        }
        else {
            logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Graph', msg: 'Graph Routes Received', data: body });
            return res.status(200).json(body);
        }
    }).catch((errRes) => {
        const err = common.handleError(errRes, 'Graph', 'Get Query Routes Error', req.session.selectedNode);
        return res.status(err.statusCode).json({ message: err.message, error: err.error });
    });
};
export const getRemoteFeePolicy = (req, res, next) => {
    logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Graph', msg: 'Getting Remote Fee Policy..' });
    options = common.getOptions(req);
    if (options.error) {
        return res.status(options.statusCode).json({ message: options.message, error: options.error });
    }
    options.url = req.session.selectedNode.settings.lnServerUrl + '/v1/graph/edge/' + req.params.chanid;
    request(options).then((body) => {
        logger.log({ selectedNode: req.session.selectedNode, level: 'DEBUG', fileName: 'Graph', msg: 'Edge Info Received', data: body });
        let remoteNodeFee = {};
        if (body.node1_pub === req.params.localPubkey) {
            remoteNodeFee = {
                time_lock_delta: body.node2_policy.time_lock_delta,
                fee_base_msat: body.node2_policy.fee_base_msat,
                fee_rate_milli_msat: body.node2_policy.fee_rate_milli_msat
            };
        }
        else if (body.node2_pub === req.params.localPubkey) {
            remoteNodeFee = {
                time_lock_delta: body.node1_policy.time_lock_delta,
                fee_base_msat: body.node1_policy.fee_base_msat,
                fee_rate_milli_msat: body.node1_policy.fee_rate_milli_msat
            };
        }
        logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Graph', msg: 'Remote Fee Policy Received', data: remoteNodeFee });
        res.status(200).json(remoteNodeFee);
    }).catch((errRes) => {
        const err = common.handleError(errRes, 'Graph', 'Remote Fee Policy Error', req.session.selectedNode);
        return res.status(err.statusCode).json({ message: err.message, error: err.error });
    });
};
export const getAliasesForPubkeys = (req, res, next) => {
    options = common.getOptions(req);
    if (options.error) {
        return res.status(options.statusCode).json({ message: options.message, error: options.error });
    }
    if (req.query.pubkeys) {
        const pubkeyArr = req.query.pubkeys.split(',');
        return Promise.all(pubkeyArr?.map((pubkey) => getAliasFromPubkey(req.session.selectedNode, pubkey))).
            then((values) => {
            logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Graph', msg: 'Node Alias', data: values });
            res.status(200).json(values);
        }).
            catch((errRes) => {
            const err = common.handleError(errRes, 'Graph', 'Get Aliases for Pubkeys Error', req.session.selectedNode);
            return res.status(err.statusCode).json({ message: err.message, error: err.error });
        });
    }
    else {
        return res.status(200).json([]);
    }
};