@emurgo/react-native-hid/README.md

Ledger Hardware Wallet Web implementation of the communication layer, using U2F api

<img src="https://user-images.githubusercontent.com/211411/34776833-6f1ef4da-f618-11e7-8b13-f0697901d6a8.png" height="100" />

[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

<!-- Generated by documentation.js. Update this documentation by updating the source code. -->

#### 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)&lt;[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**