README
@ledgerhq/hw-http-proxy-devserver
Proxy a Ledger device plugged in USB over HTTP / WebSocket.
- Plug your Ledger device on your computer
- Run a HTTP server with the
ledger-hw-http-proxy-devservercommand - Use
@ledgerhq/hw-transport-httpin your code like a normal transport so you can run Legder device APDU over http.
Goal: This library is meant for DEV & testing purpose only. It is not designed to be used in PROD.
Setup
Install with one of these:
npm i -g @ledgerhq/hw-http-proxy-devserver
yarn global add @ledgerhq/hw-http-proxy-devserver
Run the server
In a console, simply run:
ledger-hw-http-proxy-devserver
hw-transport-http to communicate with the server
To communicate with this server, there is a dedicated Transport library. You can use it like any other Ledger transport like hw-transport-node-hid, hw-transport-u2f, ...
import withStaticURL from "@ledgerhq/hw-transport-http";
// you can change localhost to a local IP (e.g. to use from a Phone)
const Transport = withStaticURL("ws://localhost:8435");
// ... normal @ledgerhq/* code
import AppBtc from "@ledgerhq/hw-app-btc";
const getBtcAddress = async () => {
const transport = await Transport.create();
const btc = new AppBtc(transport);
const result = await btc.getWalletPublicKey("44'/0'/0'/0/0");
return result.bitcoinAddress;
};
getBtcAddress().then(a => console.log(a));