d-bis/metamask-integration

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defiQUG 25c96e210a chore: sync submodule state (parent ref update)

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2026-03-02 12:14:14 -08:00

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MetaMask ChainID 138 React Example

Complete React example for integrating MetaMask with ChainID 138.

Features

✅ Connect to MetaMask wallet
✅ Add ChainID 138 network
✅ Switch to ChainID 138 network
✅ Add tokens (cUSDT, cUSDC, WETH)
✅ Display wallet balance
✅ Error handling

Installation

npm install

Development

npm run dev

Build

npm run build

Usage

Install MetaMask browser extension
Open the application
Click "Connect Wallet"
Approve connection in MetaMask
Add ChainID 138 network if needed
Add tokens to MetaMask

Code Structure

App.tsx - Main component with wallet connection logic
App.css - Styling
Uses ethers.js v6 for blockchain interactions

Network Configuration

The example includes ChainID 138 network configuration:

Chain ID: 138 (0x8a)
RPC URLs: https://rpc.d-bis.org, https://rpc2.d-bis.org
Explorer: https://explorer.d-bis.org

Token Addresses

cUSDT: 0x93E66202A11B1772E55407B32B44e5Cd8eda7f22 (6 decimals)
cUSDC: 0xf22258f57794CC8E06237084b353Ab30fFfa640b (6 decimals)
WETH: 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 (18 decimals)