Add electron

backend/src/index.ts

@@ -0,0 +1,37 @@
+import { TopicProperties, Tree, TreeNodeFactory } from './Model'
+import { MqttSource, DataSource } from './DataSource'
+
+import * as socketIO from 'socket.io'
+
+const server = require('http').createServer();
+
+let tree = new Tree()
+let options = {url: 'mqtt://nodered'}
+let dataSource = new MqttSource()
+let count = 200
+
+const a: Array<any> = []
+
+const io = socketIO(server)
+io.on('connection', client => {
+  console.log('connection')
+  a.forEach(b => {
+    io.emit('message', b)
+  })
+  client.on('event', data => { /* … */ });
+  client.on('disconnect', () => { /* … */ });
+});
+server.listen(3000);
+
+let state = dataSource.connect(options)
+dataSource.onMessage((topic: string, payload: Buffer) => {
+  if (payload.length > 10000) {
+    payload = payload.slice(0, 10000)
+  }
+
+  io.emit('message', { topic, payload: payload.toString('base64') })
+})
+
+setTimeout(() => {
+  dataSource.disconnect()
+}, 1000000)