Update README.md

README.md

@@ -23,3 +23,50 @@ If that process is too involved for you, you can always open a thread on the [Me
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+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: '0x2105',
+      token: 'ETH',
+      label: 'Base',
+      rpcUrl: 'https://mainnet.base.org'
+    }
+  ]
+})
+
+const wallets = await onboard.connectWallet()
+
+console.log(wallets)
+
+if (wallets[0]) {
+  // create an ethers provider with the last connected wallet provider
+  const ethersProvider = new ethers.providers.Web3Provider(wallets[0].provider, 'any')
+  // if using ethers v6 this is:
+  // ethersProvider = new ethers.BrowserProvider(wallet.provider, 'any')
+
+  const signer = ethersProvider.getSigner()
+
+  // send a transaction with the ethers provider
+  const txn = await signer.sendTransaction({
+    to: '0x',
+    value: 100000000000000
+  })
+
+  const receipt = await txn.wait()
+  console.log(receipt)
+}