436 lines
11 KiB
JavaScript
436 lines
11 KiB
JavaScript
const _ = require('lodash/fp')
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const axios = require('axios')
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const { utils: coinUtils } = require('@lamassu/coins')
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const NAME = 'LN'
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const SUPPORTED_COINS = ['LN']
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const BN = require('../../../bn')
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function request(graphqlQuery, token, endpoint) {
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const headers = {
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'content-type': 'application/json',
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'X-API-KEY': token,
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}
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return axios({
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method: 'post',
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url: endpoint,
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headers: headers,
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data: graphqlQuery,
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})
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.then(r => {
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if (r.error) throw r.error
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return r.data
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})
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.catch(err => {
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throw new Error(err)
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})
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}
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function checkCryptoCode(cryptoCode) {
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if (!SUPPORTED_COINS.includes(cryptoCode)) {
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return Promise.reject(new Error('Unsupported crypto: ' + cryptoCode))
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}
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return Promise.resolve()
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}
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function getTransactionsByAddress(token, endpoint, walletId, address) {
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const accountInfo = {
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operationName: 'me',
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query: `query me($walletId: WalletId!, , $address: OnChainAddress!) {
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me {
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defaultAccount {
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walletById(walletId: $walletId) {
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transactionsByAddress (address: $address) {
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edges {
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node {
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direction
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settlementAmount
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status
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}
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}
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}
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}
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}
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}
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}`,
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variables: { walletId, address },
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}
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return request(accountInfo, token, endpoint)
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.then(r => {
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return r.data.me.defaultAccount.walletById.transactionsByAddress
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})
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.catch(err => {
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throw new Error(err)
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})
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}
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function getGaloyWallet(token, endpoint, walletId) {
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const accountInfo = {
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operationName: 'me',
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query: `query me($walletId: WalletId!) {
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me {
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defaultAccount {
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walletById(walletId: $walletId) {
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id
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walletCurrency
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balance
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}
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}
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}
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}`,
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variables: { walletId },
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}
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return request(accountInfo, token, endpoint)
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.then(r => {
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return r.data.me.defaultAccount.walletById
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})
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.catch(err => {
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throw new Error(err)
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})
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}
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function isLnInvoice(address) {
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return address.toLowerCase().startsWith('lnbc')
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}
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function isLnurl(address) {
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return address.toLowerCase().startsWith('lnurl')
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}
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function sendFundsOnChain(walletId, address, cryptoAtoms, token, endpoint) {
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const sendOnChain = {
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operationName: 'onChainPaymentSend',
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query: `mutation onChainPaymentSend($input: OnChainPaymentSendInput!) {
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onChainPaymentSend(input: $input) {
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errors {
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message
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path
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}
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status
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}
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}`,
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variables: { input: { address, amount: cryptoAtoms.toString(), walletId } },
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}
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return request(sendOnChain, token, endpoint).then(result => {
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return result.data.onChainPaymentSend
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})
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}
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function sendFundsLNURL(walletId, lnurl, cryptoAtoms, token, endpoint) {
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const sendLnNoAmount = {
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operationName: 'lnurlPaymentSend',
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query: `mutation lnurlPaymentSend($input: LnurlPaymentSendInput!) {
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lnurlPaymentSend(input: $input) {
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errors {
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message
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path
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}
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status
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}
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}`,
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variables: {
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input: {
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lnurl: `${lnurl}`,
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walletId: `${walletId}`,
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amount: `${cryptoAtoms}`,
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},
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},
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}
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return request(sendLnNoAmount, token, endpoint).then(
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result => result.data.lnurlPaymentSend,
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)
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}
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function sendFundsLN(walletId, invoice, cryptoAtoms, token, endpoint) {
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const sendLnNoAmount = {
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operationName: 'lnNoAmountInvoicePaymentSend',
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query: `mutation lnNoAmountInvoicePaymentSend($input: LnNoAmountInvoicePaymentInput!) {
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lnNoAmountInvoicePaymentSend(input: $input) {
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errors {
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message
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path
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}
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status
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}
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}`,
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variables: {
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input: {
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paymentRequest: invoice,
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walletId,
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amount: cryptoAtoms.toString(),
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},
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},
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}
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return request(sendLnNoAmount, token, endpoint).then(
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result => result.data.lnNoAmountInvoicePaymentSend,
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)
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}
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function sendProbeRequest(walletId, invoice, cryptoAtoms, token, endpoint) {
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const sendProbeNoAmount = {
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operationName: 'lnNoAmountInvoiceFeeProbe',
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query: `mutation lnNoAmountInvoiceFeeProbe($input: LnNoAmountInvoiceFeeProbeInput!) {
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lnNoAmountInvoiceFeeProbe(input: $input) {
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amount
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errors {
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message
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path
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}
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}
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}`,
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variables: {
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input: {
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paymentRequest: invoice,
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walletId,
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amount: cryptoAtoms.toString(),
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},
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},
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}
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return request(sendProbeNoAmount, token, endpoint).then(
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result => result.data.lnNoAmountInvoiceFeeProbe,
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)
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}
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function sendCoins(account, tx) {
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const { toAddress, cryptoAtoms, cryptoCode } = tx
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return checkCryptoCode(cryptoCode)
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.then(() => {
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if (isLnInvoice(toAddress)) {
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return sendFundsLN(
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account.walletId,
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toAddress,
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cryptoAtoms,
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account.apiSecret,
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account.endpoint,
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)
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}
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if (isLnurl(toAddress)) {
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return sendFundsLNURL(
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account.walletId,
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toAddress,
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cryptoAtoms,
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account.apiSecret,
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account.endpoint,
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)
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}
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return sendFundsOnChain(
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account.walletId,
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toAddress,
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cryptoAtoms,
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account.apiSecret,
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account.endpoint,
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)
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})
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.then(result => {
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switch (result.status) {
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case 'ALREADY_PAID':
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throw new Error('Transaction already exists!')
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case 'FAILURE':
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throw new Error('Transaction failed!', JSON.stringify(result.errors))
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case 'SUCCESS':
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return '<galoy transaction>'
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case 'PENDING':
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return '<galoy transaction>'
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default:
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throw new Error(
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`Transaction failed: ${_.head(result.errors).message}`,
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)
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}
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})
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}
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function probeLN(account, cryptoCode, invoice) {
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const probeHardLimits = [200000, 1000000, 2000000]
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const promises = probeHardLimits.map(limit => {
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return sendProbeRequest(
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account.walletId,
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invoice,
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limit,
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account.apiSecret,
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account.endpoint,
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).then(r => _.isEmpty(r.errors))
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})
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return Promise.all(promises).then(results =>
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_.zipObject(probeHardLimits, results),
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)
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}
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function newOnChainAddress(walletId, token, endpoint) {
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const createOnChainAddress = {
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operationName: 'onChainAddressCreate',
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query: `mutation onChainAddressCreate($input: OnChainAddressCreateInput!) {
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onChainAddressCreate(input: $input) {
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address
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errors {
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message
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path
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}
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}
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}`,
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variables: { input: { walletId } },
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}
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return request(createOnChainAddress, token, endpoint).then(result => {
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return result.data.onChainAddressCreate.address
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})
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}
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function newInvoice(walletId, cryptoAtoms, token, endpoint) {
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const createInvoice = {
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operationName: 'lnInvoiceCreate',
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query: `mutation lnInvoiceCreate($input: LnInvoiceCreateInput!) {
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lnInvoiceCreate(input: $input) {
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errors {
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message
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path
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}
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invoice {
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paymentRequest
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}
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}
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}`,
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variables: { input: { walletId, amount: cryptoAtoms.toString() } },
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}
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return request(createInvoice, token, endpoint).then(result => {
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return result.data.lnInvoiceCreate.invoice.paymentRequest
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})
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}
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function balance(account, cryptoCode) {
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return checkCryptoCode(cryptoCode)
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.then(() =>
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getGaloyWallet(account.apiSecret, account.endpoint, account.walletId),
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)
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.then(wallet => {
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return new BN(wallet.balance || 0)
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})
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}
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function newAddress(account, info, tx) {
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const { cryptoAtoms, cryptoCode } = tx
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return checkCryptoCode(cryptoCode).then(() =>
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newInvoice(
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account.walletId,
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cryptoAtoms,
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account.apiSecret,
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account.endpoint,
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),
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)
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}
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function getInvoiceStatus(token, endpoint, address) {
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const query = {
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operationName: 'lnInvoicePaymentStatus',
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query: `query lnInvoicePaymentStatus($input: LnInvoicePaymentStatusInput!) {
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lnInvoicePaymentStatus(input: $input) {
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status
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}
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}`,
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variables: { input: { paymentRequest: address } },
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}
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return request(query, token, endpoint)
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.then(r => {
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return r?.data?.lnInvoicePaymentStatus?.status
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})
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.catch(err => {
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throw new Error(err)
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})
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}
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function getStatus(account, tx, requested) {
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const { toAddress, cryptoAtoms, cryptoCode } = tx
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const getBalance = _.reduce(
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(acc, value) => {
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acc[value.node.status] = acc[value.node.status].plus(
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new BN(value.node.settlementAmount),
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)
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return acc
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},
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{ SUCCESS: new BN(0), PENDING: new BN(0), FAILURE: new BN(0) },
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)
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return checkCryptoCode(cryptoCode).then(() => {
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const address = coinUtils.parseUrl(
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cryptoCode,
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account.environment,
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toAddress,
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false,
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)
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if (isLnInvoice(address)) {
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return getInvoiceStatus(
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account.apiSecret,
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account.endpoint,
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address,
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).then(it => {
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const isPaid = it === 'PAID'
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if (isPaid)
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return { receivedCryptoAtoms: cryptoAtoms, status: 'confirmed' }
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return { receivedCryptoAtoms: BN(0), status: 'notSeen' }
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})
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}
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// On-chain and intra-ledger transactions
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return getTransactionsByAddress(
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account.apiSecret,
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account.endpoint,
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account.walletId,
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address,
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).then(transactions => {
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const { SUCCESS: confirmed, PENDING: pending } = getBalance(
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transactions.edges,
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)
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if (confirmed.gte(requested))
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return { receivedCryptoAtoms: confirmed, status: 'confirmed' }
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if (pending.gte(requested))
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return { receivedCryptoAtoms: pending, status: 'authorized' }
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if (pending.gt(0))
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return { receivedCryptoAtoms: pending, status: 'insufficientFunds' }
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return { receivedCryptoAtoms: pending, status: 'notSeen' }
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})
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})
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}
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function newFunding(account, cryptoCode) {
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// Regular BTC address
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return checkCryptoCode(cryptoCode)
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.then(() =>
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getGaloyWallet(account.apiSecret, account.endpoint, account.walletId),
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)
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.then(wallet => {
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return newOnChainAddress(
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account.walletId,
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account.apiSecret,
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account.endpoint,
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).then(onChainAddress => [onChainAddress, wallet.balance])
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})
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.then(([onChainAddress, balance]) => {
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return {
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// with the old api is not possible to get pending balance
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fundingPendingBalance: new BN(0),
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fundingConfirmedBalance: new BN(balance),
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fundingAddress: onChainAddress,
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}
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})
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}
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function cryptoNetwork(account, cryptoCode) {
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return checkCryptoCode(cryptoCode).then(() =>
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account.environment === 'test' ? 'test' : 'main',
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)
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}
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function checkBlockchainStatus(cryptoCode) {
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return checkCryptoCode(cryptoCode).then(() => Promise.resolve('ready'))
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}
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module.exports = {
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NAME,
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balance,
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sendCoins,
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newAddress,
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getStatus,
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newFunding,
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cryptoNetwork,
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checkBlockchainStatus,
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probeLN,
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}
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