npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

@openzeppelin/contract-loader

v0.6.3

Published

Load contract ABIs from built artifacts and return contract objects

Downloads

27,040

Readme

OpenZeppelin Contract Loader

Docs NPM Package Build Status

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

const { setupLoader } = require('@openzeppelin/contract-loader');
const loader = setupLoader({ provider: new Web3('http://localhost:8545') }).web3;

const address = '0xCfEB869F69431e42cdB54A4F4f105C19C080A601';
const erc20 = loader.fromArtifact('ERC20', address);

const totalSupply = await token.methods.totalSupply().call();

Overview

Installation

npm install @openzeppelin/contract-loader

You may also need to install web3-eth-contract or @truffle/contract, depending on which abstractions you want to be able to load.

Contract Loader requires access to the filesystem to read contract ABIs. Because of this, it will not work in a browser-based Dapp.

Usage

Create a loader object:

const { setupLoader } = require('@openzeppelin/contract-loader');

const loader = setupLoader({
  provider,      // either a web3 provider or a web3 instance
  defaultSender, // optional
  defaultGas,    // optional, defaults to 8 million
});

Load web3 contracts:

const ERC20 = loader.web3.fromArtifact('ERC20');

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

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

Load Truffle contracts:

const ERC20 = loader.truffle.fromArtifact('ERC20');

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

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

Learn More

  • For detailed usage information, take a look at the API Reference.

License

MIT.