const BigNumber = require('bignumber.js');
const Web3 = require('web3');
//You must compile the smart contracts or use the official ABIs of the repository
const MocAbi = require('../../build/contracts/MoC.json');
const MoCInrateAbi = require('../../build/contracts/MoCInrate.json');
const MoCExchangeAbi = require('../../build/contracts/MoCExchange.json');
const MoCStateAbi = require('../../build/contracts/MoCState.json');
const truffleConfig = require('../../truffle');
* Get a provider from truffle.js file
* @param {String} network
const getDefaultProvider = network =>
truffleConfig.networks[network].provider || truffleConfig.networks[network].endpoint;
* Get a gasPrice from truffle.js file
* @param {String} network
const getGasPrice = network => truffleConfig.networks[network].gasPrice || 60000000;
* Get a new web3 instance from truffle.js file
const getWeb3 = network => {
const provider = getDefaultProvider(network);
return new Web3(provider, null, {
transactionConfirmationBlocks: 1
const web3 = getWeb3('rskTestnet');
const gasPrice = getGasPrice('rskTestnet');
//Contract addresses on testnet
const mocContractAddress = '<contract-address>';
const mocInrateAddress = '<contract-address>';
const mocExchangeAddress = '<contract-address>';
const mocStateAddress = '<contract-address>';
const execute = async () => {
web3.eth.defaultGas = 2000000;
* Loads an specified contract
* @param {ContractABI} abi
* @param {String} contractAddress
const getContract = async (abi, contractAddress) => new web3.eth.Contract(abi, contractAddress);
* Transforms BigNumbers into
* @param {BigNumber} number
const toContract = number => new BigNumber(number).toFixed(0);
const moc = await getContract(MocAbi.abi, mocContractAddress);
throw Error('Can not find MoC contract.');
// Loading mocInrate contract. It is necessary to get fees for transaction types
const mocInrate = await getContract(MoCInrateAbi.abi, mocInrateAddress);
throw Error('Can not find MoC Inrate contract.');
// Loading mocExchange contract. It is necessary to compute commissions and vendor markup
const mocExchange = await getContract(MoCExchangeAbi.abi, mocExchangeAddress);
throw Error('Can not find MoC Exchange contract.');
// Loading mocState contract. It is necessary to compute max BPRO available to mint
const mocState = await getContract(MoCStateAbi.abi, mocStateAddress);
throw Error('Can not find MoCState contract.');
const mintBpro = async (btcAmount, vendorAccount) => {
const [from] = await web3.eth.getAccounts();
const weiAmount = web3.utils.toWei(btcAmount, 'ether');
const txTypeFeesRBTC = await mocInrate.methods.MINT_BPRO_FEES_RBTC();
const txTypeFeesMOC = await mocInrate.methods.MINT_BPRO_FEES_MOC();
amount: toContractBN(weiAmount).toString(),
txTypeFeesMOC: txTypeFeesMOC.toString(),
txTypeFeesRBTC: txTypeFeesRBTC.toString(),
} = await mocExchange.methods.calculateCommissionsWithPrices(params, { from }));
// Computes totalBtcAmount to call mintBproVendors
const totalBtcAmount = toContract(btcCommission.plus(btcMarkup).plus(weiAmount));
console.log(`Calling Bpro minting with account: ${from} and amount: ${weiAmount}.`);
.mintBProVendors(weiAmount, vendorAccount)
.send({ from, value: totalBtcAmount, gasPrice }, function(error, transactionHash) {
if (error) console.log(error);
if (transactionHash) console.log('txHash: '.concat(transactionHash));
.on('transactionHash', function(hash) {
console.log('TxHash: '.concat(hash));
.on('receipt', function(receipt) {
.on('error', console.error);
const bproPriceInRBTC = await mocState.methods.bproTecPrice().call();
console.log('=== BPRO in RBTC: '.concat(bproPriceInRBTC.toString()));
const btcAmount = '0.00001';
const vendorAccount = '<vendor-address>';
await mintBpro(btcAmount, vendorAccount);
.then(() => console.log('Completed'))
console.log('Error', err);