@ledgerhq/web3-subprovider

IMPORTANT: this package is deprecated due to the fact we had to move away from U2F. Contributions are welcome to make it running in WebUSB!

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@ledgerhq/web3-subprovider

Library for Ledger Hardware Wallets.
Github, Ledger Devs Slack

API

Table of Contents

• SubproviderOptions

-   [Properties](#properties)

• createLedgerSubprovider

-   [Parameters](#parameters)
-   [Examples](#examples)

SubproviderOptions

Properties

• networkId number
• paths Array<string>?
• askConfirm boolean?
• accountsLength number?
• accountsOffset number?

createLedgerSubprovider

Create a HookedWalletSubprovider for Ledger devices.

Parameters

• getTransport function (): Transport<any> gets lazily called each time the device is needed. It is a function that returns a Transport instance. You can typically give ()=>TransportU2F.create()
• options SubproviderOptions?

Examples

import Web3 from "web3";
import createLedgerSubprovider from "@ledgerhq/web3-subprovider";
import TransportU2F from "@ledgerhq/hw-transport-u2f";
import ProviderEngine from "web3-provider-engine";
import RpcSubprovider from "web3-provider-engine/subproviders/rpc";
const engine = new ProviderEngine();
const getTransport = () => TransportU2F.create();
const ledger = createLedgerSubprovider(getTransport, {
accountsLength: 5
});
engine.addProvider(ledger);
engine.addProvider(new RpcSubprovider({ rpcUrl }));
engine.start();
const web3 = new Web3(engine);

Returns HookedWalletSubprovider