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@web3auth-mpc/ethereum-provider

v3.1.0

Published

[![npm version](https://img.shields.io/npm/v/@web3auth-mpc/ethereum-provider?label=%22%22)](https://www.npmjs.com/package/@web3auth-mpc/ethereum-provider/v/latest) [![minzip](https://img.shields.io/bundlephobia/minzip/@web3auth-mpc/ethereum-provider?label

Downloads

6,317

Readme

Web3Auth Ethereum Provider

npm version minzip

Web3Auth is where passwordless auth meets non-custodial key infrastructure for Web3 apps and wallets. By aggregating OAuth (Google, Twitter, Discord) logins, different wallets and innovative Multi Party Computation (MPC) - Web3Auth provides a seamless login experience to every user on your application.

Web3Auth Ethereum Provider can be used to interact with wallet or connected EVM compatible chain using RPC calls. This is an EIP-1193 compatible JRPC provider. This package exposes a class EthereumPrivateKeyProvider, which accepts a secp251k1 private key and returns EIP1193 compatible provider, which can be used with various wallet sdks.

📖 Documentation

Read more about Web3Auth Ethereum Provider in the official Web3Auth Documentation.

💡 Features

  • Plug and Play, OAuth based Web3 Authentication Service
  • Fully decentralized, non-custodial key infrastructure
  • End to end Whitelabelable solution
  • Threshold Cryptography based Key Reconstruction
  • Multi Factor Authentication Setup & Recovery (Includes password, backup phrase, device factor editing/deletion etc)
  • Support for WebAuthn & Passwordless Login
  • Support for connecting to multiple wallets
  • DApp Active Session Management

...and a lot more

🔗 Installation

npm install --save @web3auth-mpc/ethereum-provider

🩹 Example

import { EthereumPrivateKeyProvider } from "@web3auth-mpc/ethereum-provider";
import type { SafeEventEmitterProvider } from "@web3auth-mpc/base";
const signEthMessage = async (provider: SafeEventEmitterProvider): Promise<string> => {
  const web3 = new Web3(provider as any);
  const accounts = await web3.eth.getAccounts();
  // hex message
  const message = "0x47173285a8d7341e5e972fc677286384f802f8ef42a5ec5f03bbfa254cb01fad";
  const signature = await web3.eth.sign(message, accounts[0]);
  return signature;
};

(async () => {
  const provider = await EthereumPrivateKeyProvider.getProviderInstance({
    chainConfig: {
      rpcTarget: "https://polygon-rpc.com",
      chainId: "0x89", // hex chain id
      networkName: "matic",
      ticker: "matic",
      tickerName: "matic",
    },
    privKey: "4c0883a69102937d6231471b5dbb6204fe5129617082792ae468d01a3f362318",
  });
  const signedMessage = await signEthMessage(provider);
})();

Checkout the examples for your preferred blockchain and platform in our examples repository

🌐 Demo

Checkout the Web3Auth Demo to see how Web3Auth can be used in your application.

💬 Troubleshooting and Support

  • Have a look at our Community Portal to see if anyone has any questions or issues you might be having. Feel free to reate new topics and we'll help you out as soon as possible.
  • Checkout our Troubleshooting Documentation Page to know the common issues and solutions.
  • For Priority Support, please have a look at our Pricing Page for the plan that suits your needs.