Loan smart contracts

Ethereum smart contracts for creating and managing loans

Getting started

To install

npm install

To lint and run unit tests with coverage analysis

yarn test

To deploy, there are a few options depending on your setup

using truffle and mnemonic

install dependency

npm install truffle-hdwallet-provider --save

add the following to truffle.js

let mnemonic = 'your secert words';
let HDWalletProvider = require('truffle-hdwallet-provider');

module.exports = {
  networks: {
    rinkeby: {
      provider: () => {
        return new HDWalletProvider(mnemonic, 'https://rinkeby.infura.io/');
      },
      gasPrice: '10000000000',
      network_id: '*' // Match any network id
    }
  }
};

run truffle migrate

truffle migrate --network rinkeby

using truffle and private key

install dependency

npm install truffle-privatekey-provider --save

add the following to truffle.js

let privateKey = 'your private key without 0x';
let PrivateKeyProvider = require('truffle-privatekey-provider');

module.exports = {
  networks: {
    rinkeby: {
      provider: () => {
        return new PrivateKeyProvider(privateKey, 'https://rinkeby.infura.io/');
      },
      gasPrice: '10000000000',
      network_id: '*' // Match any network id
    }
  }
};

run truffle migrate

truffle migrate --network rinkeby

using mnemonic

install dependency

npm install truffle-hdwallet-provider --save

run the following javascript script

const mnemonic = 'your secert words';
const Web3 = require('web3');
const HDWalletProvider = require('truffle-hdwallet-provider');
const compiledContract = require('./build/contracts/LoanFactory.json');

const provider = new HDWalletProvider(mnemonic, 'https://rinkeby.infura.io/');
const web3 = new Web3(provider);

const deploy = async () => {
  const accounts = await web3.eth.getAccounts();
  let newContract = new web3.eth.Contract(compiledContract.abi);
  let tx = await newContract
    .deploy({
      data: compiledContract.bytecode
    })
    .send({
      from: accounts[0],
      gas: '6000000',
      gasPrice: '10000000000'
    });
  console.log('Contract deployed to: ', tx.options.address);
};

deploy();

using private key

install dependency

npm install truffle-privatekey-provider --save

run the following javascript script

const privateKey = 'your private key without 0x';
const Web3 = require('web3');
const PrivateKeyProvider = require('truffle-privatekey-provider');
const compiledContract = require('./build/contracts/LoanFactory.json');

const provider = new PrivateKeyProvider(privateKey, 'https://rinkeby.infura.io/');
const web3 = new Web3(provider);

const deploy = async () => {
  const accounts = await web3.eth.getAccounts();
  let newContract = new web3.eth.Contract(compiledContract.abi);
  let tx = await newContract
    .deploy({
      data: compiledContract.bytecode
    })
    .send({
      from: accounts[0],
      gas: '6000000',
      gasPrice: '10000000000'
    });
  console.log('Contract deployed to: ', tx.options.address);
};

deploy();