@onflow/ledger

Node API for Flow App (Ledger Nano S/X)

Usage no npm install needed!

<script type="module">
  import onflowLedger from 'https://cdn.skypack.dev/@onflow/ledger';
</script>

README

@zondax/ledger-flow

License npm version

This package provides a basic client library to communicate with the Flow App running in a Ledger Nano S/X

We recommend using the npmjs package in order to receive updates/fixes.

Notes

Use yarn install to avoid issues.

Minimal example

This is very simple. First you need to use one of the transport classes provided by Ledger.

import TransportWebUSB from "@ledgerhq/hw-transport-webusb";
transport = await TransportWebUSB.create();
const app = new FlowApp(transport);

the FlowApp object will provide

const response = await app.getVersion();

if (response.returnCode !== FlowApp.ERROR_CODE.NoError) {
      console.log(`Error [${response.returnCode}] ${response.errorMessage}`);
} else {
    console.log(response);
}