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Title: Unable to run smart contract (BUSD) method on Android Chrome using Web3.js and WalletConnect
Introduction
As a web developer, I have faced several challenges while developing decentralized applications (dApps) based on blockchain technology. One common issue is running smart contract methods using Web3.js and WalletConnect on mobile devices such as Android Chrome. In this article, we will explore the reasons behind this limitation and provide a solution on how to install and use the BUSD (Binance Smart Chain) transfer method on Android Chrome.
Why Smart Contract Methods Cannot Run
There are several reasons why smart contract methods may not work as expected using Web3.js and WalletConnect on Android Chrome.
- Web3.js Library Compatibility: The Web3.js library is designed to work seamlessly with the Ethereum blockchain, which is a different network than Binance Smart Chain (BSC). As a result, some Web3.js features and functions may be incompatible or not work on BSC.
- WalletConnect Integration: WalletConnect is an open source protocol that allows users to connect their wallets to dApps. However, integrating it with Web3.js can be challenging, especially when working with different blockchain networks.
Product: Using Localhost Wallet and Web3.js
To get the BUSD transfer method working on Android Chrome, we will use the tools below.
- Localhost Wallet
: We will create a local wallet that mimics the behavior of the Binance Smart Chain wallet. This will allow us to interact with the BSC blockchain from the browser.
- Web3.js: We will use Web3.js to interact with the localhost wallet and execute the smart contract methods.
Step by Step Guide
Here is a step-by-step guide to running the BUSD transfer method on Android Chrome:
- Create a local wallet
: Create a local BSC wallet that supports the ethernaut chain (the Ethereum equivalent of Binance Smart Chain). You can find pre-configured wallets online or create one with a tool like MetaMask.
- Install Web3.js: Install Web3.js on your localhost using npm:
npm install web3.
- Create a new JavaScript file: Create a new file (e.g.
bssc-transfer.js) and import the required libraries:import Web3 fromweb3; import WalletConnect fromwalletconnect;.
- Set up a Localhost wallet connection: Replace the following placeholders with the actual URL of your localhost wallet:
const w3 = new Web3(new Web3.providers.HttpProvider('
- Create smart contract methods: Create a new JavaScript file (e.g. bssc-transfer.js) and define the smart contract methods you want to execute.
- Use WalletConnect: Use an instance of WalletConnect to connect your localhost wallet and trigger a smart contract method.
Code example
Here’s a sample code snippet to get you started:
“` javascript
const w3 = new Web3(new Web3.providers.HttpProvider(‘
// Set up a local wallet connection
const walletUrl = ‘
const walletPrivateKey = ‘your wallet private key’;
// Create smart contract methods
async function transferBusd(amount) {
await w3.eth.sendTransaction({
from: process.env.ACCOUNT,
to: ‘0x…YourRecipientAddress’,
value: amount * 10 // 100 BUSD per transaction
});
}
// Use a WalletConnect instance to trigger a smart contract method
const wallet = new WalletConnect({
providerUrl: walletUrl,
chainID: 42, // BSC Mainnet
accounts: [“…Your wallet address”]
});
wallet.on(‘connect’, (chain) => {
console.