# Getting Started

## Installation

Install the core Onboard library and the injected wallets module to support browser extension and mobile wallets:

```bash copy
npm i @web3-onboard/core @web3-onboard/injected-wallets
```

## Quick Start

Then initialize in your app:

```js copy lineNumbers
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
    }
  ]
})

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)
}
```