webseite/backend/server.js

@@ -0,0 +1,54 @@
+import express from 'express';
+import color from 'chalk';
+import cors from 'cors';
+
+// Model
+import ProductModel from './model/ProductModel.js'; // Dateiendung nicht vergessen
+
+const PORT = 8000;
+const HOST = '127.0.0.1'; // 'localhost'
+const BASE_URL = `http://${HOST}:${PORT}`;
+
+const app = express();
+const products = ProductModel();
+
+const corsOptions = {
+  origin: 'http://localhost:3000',
+  optionsSuccessStatus: 200, // some legacy browsers (IE11, various SmartTVs) choke on 204
+};
+
+// lade Produkte
+products.load();
+
+// Middleware
+app.use(cors(corsOptions)); // Fängt alle HTTP-Requests vor den Routenabfragen ab.
+
+// Routes
+app.get('/', (req, res) => {
+  // console.log(req.headers);
+
+  res.send('SERVER WORKS!'); // HTTP-Response wird gesendet.
+});
+
+app.get('/persons', (req, res) => {
+  // res.setHeader('Content-Type', 'application/json'); // nicht notwendig den Content-Type selber zu definieren, da das express automatisch zuweist.
+
+  const persons = [
+    { firstName: 'John', lastName: 'Wick' },
+    { firstName: 'Jane', lastName: 'Doe' },
+    { firstName: 'Max', lastName: 'Mustermann' },
+  ];
+  // res.send(JSON.stringify(persons)); // nicht notwendig JS Objekte in JSON Strings umzuwandeln, das das express automatisch umwandelt
+
+  res.send(persons);
+});
+
+app.get('/api/products', (req, res) => {
+  const data = products.getAll();
+  res.send(data);
+});
+
+app.listen(PORT, HOST, () => {
+  console.log(color.magenta(`🚀 Server is running at: ${BASE_URL}`));
+  console.log(color.yellow('CTRL + C to close.'));
+});