Send state updates through socket, finish app

server.js

@@ -1,10 +1,21 @@
 const express = require('express')
 const app = express()
 
+var ioState = {
+    dout: [false],
+}
+
+const updateState = data => {
+    ioState[data.type] = ioState[data.type].map((x, i) =>
+        i == data.pin ? data.value : x
+    );
+    console.log(ioState);
+}
+
 app.use('/', express.static('dist'))
 
-app.get('/hello', function (req, res) {
-  res.send('Hello World!')
+app.get('/api/dout/:pin', function (req, res) {
+  res.send(ioState.dout[req.params.pin])
 })
 
 const server = app.listen(3000, function () {
@@ -13,6 +24,11 @@ const server = app.listen(3000, function () {
 
 const io = require('socket.io').listen(server);
 
-io.on('connection', (socket) => {
-    socket.emit('message', 'hello socket');
+io.on('connection', socket => {
+    socket.emit('ioState', ioState);
+    socket.on('update', data => {
+        console.log(data);
+        updateState(data);
+        io.sockets.emit('ioState', ioState);
+    });
 });