[Github](https://github.com/LedgerHQ/ledgerjs/), [Ledger Devs Slack](https://ledger-dev.slack.com/) ## @ledgerhq/hw-transport-u2f Allows to communicate with Ledger Hardware Wallets. **[React Native]** **(HID)** _Android_ – Ledger's native implementation. ## API #### Table of Contents - [HIDTransport](#hidtransport) - [Parameters](#parameters) - [Examples](#examples) - [exchange](#exchange) - [Parameters](#parameters-1) - [close](#close) - [isSupported](#issupported) - [list](#list) - [listen](#listen) - [Parameters](#parameters-2) - [open](#open) - [Parameters](#parameters-3) ### HIDTransport **Extends Transport** Ledger's React Native HID Transport implementation #### Parameters - `nativeId` **[number](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number)** - `productId` **[number](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number)** #### Examples ```javascript import TransportHID from "@ledgerhq/react-native-hid"; ... TransportHID.create().then(transport => ...) ``` #### exchange ##### Parameters - `apdu` **any** input value Returns **any** Promise of apdu response #### close Close the transport Returns **any** Promise #### isSupported Check if the transport is supported (basically true on Android) Returns **[Promise](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Promise)<[boolean](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Boolean)>** #### list List currently connected devices. Returns **any** Promise of devices #### listen Listen to ledger devices events ##### Parameters - `observer` **any** Returns **any** #### open Open a the transport with a Ledger device ##### Parameters - `deviceObj` **DeviceObj**