request wallet info from device

src/main/ledger.js

@@ -2,6 +2,7 @@
 
 import { ipcMain } from 'electron'
 import { isLedgerDevice } from 'ledgerco/lib/utils'
+import ledgerco, { comm_node } from 'ledgerco'
 
 import HID from 'ledger-node-js-hid'
 
@@ -19,6 +20,26 @@ ipcMain.on('listenDevices', event => {
   )
 })
 
+async function getWalletInfos(path: string, wallet: string) {
+  if (wallet === 'btc') {
+    const comm = new comm_node(new HID.HID(path), true, 0, false)
+    const btc = new ledgerco.btc(comm)
+    const walletInfos = await btc.getWalletPublicKey_async("44'/0'/0'/0")
+    return walletInfos
+  }
+  throw new Error('invalid wallet')
+}
+
+ipcMain.on('requestWalletInfos', async (event: *, payload) => {
+  const { path, wallet } = payload
+  try {
+    const publicKey = await getWalletInfos(path, wallet)
+    event.sender.send('receiveWalletInfos', { path, publicKey })
+  } catch (err) {
+    event.sender.send('failWalletInfos', { path, err: err.stack })
+  }
+})
+
 ipcMain.on('getDevices', event =>
   event.sender.send('updateDevices', HID.devices().filter(isLedgerDevice)),
 )

src/renderer/i18n.js

@@ -7,7 +7,7 @@ import Backend from 'i18next-node-fs-backend'
 i18n.use(Backend).init({
   lng: 'en',
   fallbackLng: 'en',
-  debug: true,
+  debug: false,
   backend: {
     loadPath: path.resolve(__dirname, '../i18n/{{lng}}/{{ns}}.yml'),
   },

src/renderer/initEvents.js

@@ -5,10 +5,24 @@ import { ipcRenderer } from 'electron'
 import { devicesUpdate, deviceAdd, deviceRemove } from 'actions/devices'
 
 export default (store: Object) => {
-  ipcRenderer.on('updateDevices', (e, devices) => store.dispatch(devicesUpdate(devices)))
+  ipcRenderer.on('updateDevices', (e, devices) => {
+    store.dispatch(devicesUpdate(devices))
+    if (devices.length) {
+      ipcRenderer.send('requestWalletInfos', { path: devices[0].path, wallet: 'btc' })
+    }
+  })
+
   ipcRenderer.on('addDevice', (e, device) => store.dispatch(deviceAdd(device)))
   ipcRenderer.on('removeDevice', (e, device) => store.dispatch(deviceRemove(device)))
 
+  ipcRenderer.on('receiveWalletInfos', (e, { path, publicKey }) => {
+    console.log({ path, publicKey })
+  })
+
+  ipcRenderer.on('failWalletInfos', (e, { path, err }) => {
+    console.log({ path, err })
+  })
+
   // First time, we get all devices
   ipcRenderer.send('getDevices')