Github, Ledger Devs Slack

Allows to communicate with Ledger Hardware Wallets.

[Node]/Electron (HID) – uses only node-hid. Does not provide USB events.

• TransportNodeHidNoEvents
  • Parameters
  • Examples
  • exchange
    • Parameters
  • close
  • isSupported
  • list
  • listen
    • Parameters
  • open
    • Parameters

Extends Transport

node-hid Transport minimal implementation

• device HID.HID

import TransportNodeHid from "@ledgerhq/hw-transport-node-hid-noevents";
...
TransportNodeHid.create().then(transport => ...)

Exchange with the device using APDU protocol.

• apdu Buffer

Returns Promise<Buffer> a promise of apdu response

release the USB device.

Returns Promise<void>

Returns Promise<boolean>

Returns Promise<any>

• observer Observer<DescriptorEvent<any>>

Returns Subscription

if path="" is not provided, the library will take the first device

• path (string | null | undefined)