How to Seamlessly Connect Users to DApps Using Web3-Onboard

Welcome to the digital world where decentralized applications (DApps) thrive! In this guide, we will explore how to utilize the Web3-Onboard library, a powerful tool that simplifies the connection process for users wanting to interact with DApps. Together, we will walk through the installation process, key features, and practical implementation steps that will have you up and running in no time!

Key Features of Web3-Onboard

• Minimal Dependencies: All wallet dependencies are bundled in separate packages, allowing you to include only the ones you need.
• Multiple Wallets and Accounts Connection: Users can connect several wallets and accounts in a single session.
• Multiple Chain Support: Users can switch between different blockchain networks effortlessly.
• Account Center: A user-friendly interface for managing wallet connections and networks, with a simplified mobile version.
• Notify: Enjoy real-time transaction notifications for wallet addresses regarding all transaction statuses.
• Wallet Provider Standardization: Adheres to several EIP standards making integration seamless and standardized.
• Dynamic Imports: Imports wallets and their associated dependencies only when selected, ensuring optimal bandwidth usage.

Quickstart Guide

Let’s get started by installing the Web3-Onboard library and setting up your application.

Installation Steps

• Using NPM:

npm i @web3-onboard/core @web3-onboard/injected-wallets ethers

• Using Yarn:

yarn add @web3-onboard/core @web3-onboard/injected-wallets ethers

• Now, let’s initialize the Onboard in your app:

import Onboard from '@web3-onboard/core'
import injectedModule from '@web3-onboard/injected-wallets'
import { ethers } from 'ethers'

const MAINNET_RPC_URL = 'https://mainnet.infura.io/v3/INFURA_KEY'
const injected = injectedModule()
const onboard = Onboard({
  wallets: [injected],
  chains: [
    { id: 0x1, token: 'ETH', label: 'Ethereum Mainnet', rpcUrl: MAINNET_RPC_URL },
    { id: 42161, token: 'ARB-ETH', label: 'Arbitrum One', rpcUrl: 'https://rpc.ankr.com/arbitrum' },
    { id: 0xa4ba, token: 'ARB', label: 'Arbitrum Nova', rpcUrl: 'https://nova.arbitrum.io/rpc' },
    { id: 0x2105, token: 'ETH', label: 'Base', rpcUrl: 'https://mainnet.base.org' }
  ]
})

const wallets = await onboard.connectWallet()
console.log(wallets)

if (wallets[0]) {
  const ethersProvider = new ethers.providers.Web3Provider(wallets[0].provider)
  const signer = ethersProvider.getSigner()
  const txn = await signer.sendTransaction({ to: '0x', value: 100000000000000 })
  const receipt = await txn.wait()
  console.log(receipt)
}

Understanding the Code with an Analogy

Think of the code we implemented as building a bridge to connect two islands – your application and the DApps. The Onboard library lays down the foundation (basic setup) which includes specific pathways (wallet providers) that can connect to various destinations (multiple blockchain networks). When you call the function to connect the wallet, it’s akin to opening a drawbridge allowing traffic (transactions) to flow from one island to the other. The way we dynamically import wallet dependencies is like building supplementary paths only when required, ensuring that there’s no congestion on the bridge unnecessarily!

Troubleshooting Tips

If you encounter issues during your integration or connection process, here are some troubleshooting ideas:

• Check if your dependencies are correctly installed and are the latest version.
• If you experience connection issues, ensure your RPC URLs are valid and accessible.
• Make sure that users’ wallets are properly configured and are compatible with your application.
• In case of errors in transaction executions, examine the transaction parameters, like ‘to’ and ‘value’, to ensure they are correctly formatted.

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Additional Resources

For those coming from the first version of Onboard, there is a helpful migration guide available. For complete documentation, check out the docs page here.

Conclusion

In conclusion, integrating Web3-Onboard into your application provides a streamlined pathway for users to connect with DApps. With its minimal dependencies, multiple wallet support, and dynamic imports, our bridge to the decentralized world becomes more efficient and user-friendly.

At fxis.ai, we believe that such advancements are crucial for the future of AI, as they enable more comprehensive and effective solutions. Our team is continually exploring new methodologies to push the envelope in artificial intelligence, ensuring that our clients benefit from the latest technological innovations.