idquia/packages/ledger/README.md

Web3-Onboard makes it simple to connect Ethereum hardware and software wallets to your dapp. Features standardised spec compliant web3 providers for all supported wallets, framework agnostic modern javascript UI with code splitting, CSS customization, mul

# @web3-onboard/ledger

## Wallet module for connecting Ledger hardware wallets to web3-onboard

### Install

`npm i @web3-onboard/core @web3-onboard/ledger`

### Options

```typescript
type LedgerOptionsWCv1 = {
  /**
   * @deprecated
   * Version 1 of WalletConnect has been deprecated by the WC team and the WC bridge is not available.
   * To use version 1 a custom bridge url will need to be provided.
   * Support will be completely remove from Web3-Onboard in the future
   */
  walletConnectVersion?: 1
  enableDebugLogs?: boolean
  chainId?: number
  bridge?: string
  infuraId?: string
  rpc?: { [chainId: number]: string }
}

type LedgerOptionsWCv2 = {
  walletConnectVersion: 2
  enableDebugLogs?: boolean
  /**
   * Project ID associated with [WalletConnect account](https://cloud.walletconnect.com)
   */
  projectId: string
  /**
   * List of Optional Chain(s) ID for wallets to support in number format (integer or hex)
   * Defaults to the chains provided within the web3-onboard init chain property
   */
  requiredChains?: string[] | number[]
  requiredMethods?: string[]
  /**
   * Additional methods to be added to the default list of ['eth_sendTransaction',  'eth_signTransaction',  'personal_sign',  'eth_sign',  'eth_signTypedData',  'eth_signTypedData_v4']
   * Passed methods to be included along with the defaults methods - see https://docs.walletconnect.com/2.0/web/walletConnectModal/options
   */
  optionalMethods?: string[]
  requiredEvents?: string[]
  optionalEvents?: string[]
}

type LedgerOptions = LedgerOptionsWCv1 | LedgerOptionsWCv2
```

### Usage

```typescript
import Onboard from '@web3-onboard/core'
import ledgerModule from '@web3-onboard/ledger'

const ledger = ledgerModule({
  /**
   * Project ID associated with [WalletConnect account](https://cloud.walletconnect.com)
   */
  projectId: 'abc123...',
  /**
   * Chains required to be supported by all wallets connecting to your DApp
   */
  requiredChains: [1, 137]
})

const onboard = Onboard({
  // ... other Onboard options
  wallets: [
    ledger
    //... other wallets
  ]
})

const connectedWallets = await onboard.connectWallet()
console.log(connectedWallets)
```

### Filtering Platforms

You may decide that on certain platforms you do not want to display this wallet as a selectable option. To do that you can use the `filter` init option which is an array of platforms that you would like this wallet to **not** be displayed to the end user:

```typescript
import Onboard from '@web3-onboard/core'
import ledgerModule from '@web3-onboard/ledger'

const ledger = ledgerModule({
  /**
   * Project ID associated with [WalletConnect account](https://cloud.walletconnect.com)
   */
  projectId: 'abc123...',
  /**
   * Chains required to be supported by all wallets connecting to your DApp
   */
  requiredChains: [1, 137]
})

const onboard = Onboard({
  // ... other Onboard options
  wallets: [
    ledger
    //... other wallets
  ]
})

const connectedWallets = await onboard.connectWallet()
console.log(connectedWallets)
```

The following is a list of the platforms that can be filtered:

```typescript
type Platform =
  | 'Windows Phone'
  | 'Windows'
  | 'macOS'
  | 'iOS'
  | 'Android'
  | 'Linux'
  | 'Chrome OS'
  | 'Android Browser'
  | 'Chrome'
  | 'Chromium'
  | 'Firefox'
  | 'Microsoft Edge'
  | 'Opera'
  | 'Safari'
  | 'desktop'
  | 'mobile'
  | 'tablet'
```