@openzeppelin/contract-loader

OpenZeppelin Contract Loader

Load contract ABIs from built artifacts. Includes support for both web3-eth-contract and @truffle/contract objects.

Installation

npm install --save-dev @openzeppelin/contract-loader

Usage

web3 contracts

const loader = require('@openzeppelin/contract-loader')
const load = loader.web3({
  web3Contract: web3.eth.Contract,
  defaultSender, // optional
  defaultGas,    // optional - defaults to 8 million
});

// Load artifacts
const ERC20 = load('ERC20');

// Deploy token
const token = await ERC20.deploy().send();

// Query blockchain state and send transactions
const balance = await token.methods.balanceOf(sender).call();
await token.methods.transfer(receiver, balance).send({ from: sender });

truffle contracts

const loader = require('@openzeppelin/contract-loader')
const load = loader.truffle({
  truffleContract: require('@truffle/contract'),
  provider: web3.eth.currentProvider,
  defaultSender, // optional
  defaultGas,    // optional - defaults to 8 million
});

// Load artifacts
const ERC20 = load('ERC20');

// Deploy token
const token = await ERC20.new();

// Query blockchain state and send transactions
const balance = await token.balanceOf(sender);
await token.transfer(receiver, balance, { from: sender });