import request from 'request-promise'; import { Logger, LoggerService } from '../../utils/logger.js'; import { Common, CommonService } from '../../utils/common.js'; import { LNDWSClient, LNDWebSocketClient } from './webSocketClient.js'; let options = null; const logger: LoggerService = Logger; const common: CommonService = Common; const lndWsClient: LNDWebSocketClient = LNDWSClient; export const invoiceLookup = (req, res, next) => { logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Invoice', msg: 'Getting Invoice 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.ln_server_url + '/v2/invoices/lookup'; if (req.query.payment_addr) { options.url = options.url + '?payment_addr=' + req.query.payment_addr; } else { options.url = options.url + '?payment_hash=' + req.query.payment_hash; } request(options).then((body) => { body.r_preimage = body.r_preimage ? Buffer.from(body.r_preimage, 'base64').toString('hex') : ''; body.r_hash = body.r_hash ? Buffer.from(body.r_hash, 'base64').toString('hex') : ''; body.description_hash = body.description_hash ? Buffer.from(body.description_hash, 'base64').toString('hex') : null; logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Invoice', msg: 'Invoice Information Received', data: body }); res.status(200).json(body); }).catch((errRes) => { const err = common.handleError(errRes, 'Invoices', 'Invoice Lookup Error', req.session.selectedNode); return res.status(err.statusCode).json({ message: err.message, error: err.error }); }); }; export const listInvoices = (req, res, next) => { logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Invoice', msg: 'Getting List Invoices..' }); options = common.getOptions(req); if (options.error) { return res.status(options.statusCode).json({ message: options.message, error: options.error }); } options.url = req.session.selectedNode.ln_server_url + '/v1/invoices?num_max_invoices=' + req.query.num_max_invoices + '&index_offset=' + req.query.index_offset + '&reversed=' + req.query.reversed; request(options).then((body) => { logger.log({ selectedNode: req.session.selectedNode, level: 'DEBUG', fileName: 'Invoice', msg: 'Invoices List Received', data: body }); if (body.invoices && body.invoices.length > 0) { body.invoices.forEach((invoice) => { invoice.r_preimage = invoice.r_preimage ? Buffer.from(invoice.r_preimage, 'base64').toString('hex') : ''; invoice.r_hash = invoice.r_hash ? Buffer.from(invoice.r_hash, 'base64').toString('hex') : ''; invoice.description_hash = invoice.description_hash ? Buffer.from(invoice.description_hash, 'base64').toString('hex') : null; }); } logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Invoice', msg: 'Sorted Invoices List Received', data: body }); res.status(200).json(body); }).catch((errRes) => { const err = common.handleError(errRes, 'Invoices', 'List Invoices Error', req.session.selectedNode); return res.status(err.statusCode).json({ message: err.message, error: err.error }); }); }; export const addInvoice = (req, res, next) => { logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Invoice', msg: 'Adding Invoice..' }); options = common.getOptions(req); if (options.error) { return res.status(options.statusCode).json({ message: options.message, error: options.error }); } options.url = req.session.selectedNode.ln_server_url + '/v1/invoices'; options.form = { memo: req.body.memo, private: req.body.private, expiry: req.body.expiry }; if (req.body.amount > 0 && req.body.amount < 1) { options.form.value_msat = req.body.amount * 1000; } else { options.form.value = req.body.amount; } options.form = JSON.stringify(options.form); request.post(options).then((body) => { logger.log({ selectedNode: req.session.selectedNode, level: 'INFO', fileName: 'Invoice', msg: 'Invoice Added', data: body }); try { if (body.r_hash) { lndWsClient.subscribeToInvoice(options, req.session.selectedNode, body.r_hash); } } catch (errRes) { const err = common.handleError(errRes, 'Invoices', 'Subscribe to Newly Added Invoice Error', req.session.selectedNode); logger.log({ selectedNode: req.session.selectedNode, level: 'ERROR', fileName: 'Invoice', msg: 'Subscribe to Newly Added Invoice Error', error: err }); } body.r_preimage = body.r_preimage ? Buffer.from(body.r_preimage, 'base64').toString('hex') : ''; body.r_hash = body.r_hash ? Buffer.from(body.r_hash, 'base64').toString('hex') : ''; body.description_hash = body.description_hash ? Buffer.from(body.description_hash, 'base64').toString('hex') : null; res.status(201).json(body); }).catch((errRes) => { const err = common.handleError(errRes, 'Invoices', 'Add Invoice Error', req.session.selectedNode); return res.status(err.statusCode).json({ message: err.message, error: err.error }); }); };