Allows to communicate with Ledger Hardware Wallets.
[Web] (WebUSB) – WebUSB check browser support.
Important: The transport functions create() and listen() must be in the context of an user interaction (like a "click" event), otherwise it will fails with DOM Exception.
Extends Transport
WebUSB Transport implementation
deviceUSBDevice
import TransportWebUSB from "@ledgerhq/hw-transport-webusb";
...
TransportWebUSB.create().then(transport => ...)Release the transport device
Returns Promise<void>
Exchange with the device using APDU protocol.
apduBuffer
Returns Promise<Buffer> a promise of apdu response
Check if WebUSB transport is supported.
List the WebUSB devices that was previously authorized by the user.
Actively listen to WebUSB devices and emit ONE device that was either accepted before, if not it will trigger the native permission UI.
Important: it must be called in the context of a UI click!
observerObserver<DescriptorEvent<USBDevice>>
Returns Subscription
Similar to create() except it will always display the device permission (even if some devices are already accepted).
Similar to create() except it will never display the device permission (it returns a Promise<?Transport>, null if it fails to find a device).
Create a Ledger transport with a USBDevice
deviceUSBDevice