4.1.0 • Published 1 month ago

@web3auth/node-sdk v4.1.0

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Web3Auth's Node.js SDK

lerna code style: prettier npm

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.

📖 Documentation

Checkout the official Web3Auth Documentation and SDK Reference to get started!

💡 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

💭 Choosing Between SDKs

For using Web3Auth in the web, you have two choices of SDKs to get started with.

Web3Auth Plug and Play UI SDK @web3auth/modal: A simple and easy to use SDK that will give you a simple modular way of implementing Web3Auth directly within your application. You can use the pre-configured Web3Auth Modal UI and whitelabel it according to your needs.

Web3Auth Plug and Play Core SDK @web3auth/core: The core module implemeting all the Web3Auth features you need and giving you the flexibilty of using your own UI with the Web3Auth SDK working in the backend.

Web3Auth Backend SDK @web3auth/node-sdk: A simple and easy to use SDK to be used in your Node.js backend to get the same experience of Web3Auth frontend SDKs

⚡ Quick Start

Installation (Web3Auth Backend)

npm install --save @web3auth/node-sdk

Get your Client ID from Web3Auth Dashboard

Hop on to the Web3Auth Dashboard and create a new project. Use the Client ID of the project to start your integration.

Web3Auth Dashboard

Initialize Web3Auth for your preferred blockchain

Web3Auth needs to initialise as soon as your app loads up to enable the user to log in. Preferably done within a constructor, initialisation is the step where you can pass on all the configurations for Web3Auth you want. A simple integration for Ethereum blockchain will look like this:

import { Web3Auth } from "@web3auth/node-sdk";
import { EthereumPrivateKeyProvider } from "@web3auth/ethereum-provider";

//Initialize within your constructor
const web3auth = new Web3Auth({
  clientId: "", // Get your Client ID from Web3Auth Dashboard
  web3AuthNetwork: "mainnet",
  usePnPKey: false, // Setting this to true returns the same key as PnP Web SDK. 
  // By default, this SDK returns CoreKitKey.
});

const chainConfig: {
  displayName: "ETH Mainnet",
  blockExplorer: "https://etherscan.io",
  ticker: "ETH",
  tickerName: "Ethereum",
  chainId: "0x1",
  rpcTarget: "https://rpc.ankr.com/eth", // needed for non-other chains
};

const provider = new EthereumPrivateKeyProvider({ config: { chainConfig } })

web3auth.init({ provider });

Login your User

Once you're done initialising, logging in is as easy as:

await web3auth.connect({
  verifier: "verifier-name",
  verifierId: "verifier-Id",
  idToken: "JWT Token",
});

⏪ Requirements

  • Node 14+

🩹 Examples

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.

Further checkout the demo folder within web3auth-backend repository, which contains a Node.js example.

Also, checkout the demo folder within web3auth-web repository, which contains other hosted demos for different usecases.

💬 Troubleshooting and Discussions

  • Have a look at our GitHub Discussions to see if anyone has any questions or issues you might be having.
  • Checkout our Troubleshooting Documentation Page to know the common issues and solutions
  • Join our Discord to join our community and get private integration support or help with your integration.
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