Update src/server/serverESP32.js
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// First, install the required modules with the command: npm install express
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// Installiere zuerst die erforderlichen Module mit dem Befehl: npm install express
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// Import the Express module
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// Importiere das Express-Modul
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const express = require('express');
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const express = require('express');
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const cors = require('cors');
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const cors = require('cors');
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const http = require('http');
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const http = require('http');
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const WebSocket = require('ws');
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const WebSocket = require('ws');
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// Create an instance of Express
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// Erstelle eine Instanz von Express
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const app = express();
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const app = express();
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app.use(cors());
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app.use(cors());
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// Create an HTTP server
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// Erstelle einen HTTP-Server
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const server = http.createServer((req, res) => {
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const server = http.createServer((req, res) => {
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res.writeHead(200, {'Content-Type': 'text/plain'});
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res.writeHead(200, {'Content-Type': 'text/plain'});
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res.end('WebSocket Server is running');
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res.end('WebSocket Server is running');
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});
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});
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// Create a WebSocket server bound to the HTTP server
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// Erstelle einen WebSocket-Server, der an den HTTP-Server gebunden ist
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const wss = new WebSocket.Server({ server });
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const wss = new WebSocket.Server({ server });
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// Event handler for incoming WebSocket connections
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// Event-Handler für eingehende WebSocket-Verbindungen
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wss.on('connection', (ws) => {
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wss.on('connection', (ws) => {
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console.log('Client connected');
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console.log('Client connected');
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// Event handler for incoming messages from the client
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// Event-Handler für eingehende Nachrichten vom Client
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ws.on('message', (message) => {
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ws.on('message', (message) => {
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// Send the received message to all connected clients
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client.send(`${message}`);
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// Sende die empfangene Nachricht an alle verbundenen Clients
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wss.clients.forEach((client) => {
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wss.clients.forEach((client) => {
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if (client !== ws && client.readyState === WebSocket.OPEN) {
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if (client !== ws && client.readyState === WebSocket.OPEN) {
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client.send(message);
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client.send(message);
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@ -33,40 +37,40 @@ wss.on('connection', (ws) => {
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});
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});
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});
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});
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// Event handler for closing the WebSocket connection
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// Event-Handler für das Schließen der WebSocket-Verbindung
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ws.on('close', () => {
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ws.on('close', () => {
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console.log('Client disconnected');
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console.log('Client disconnected');
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});
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});
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});
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});
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// Define an endpoint for GET requests with the 'zeit' parameter
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app.get('/result/:cardname', (req, res) => {
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// Read the 'zeit' parameter from the query
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let zeit = req.params.cardname;
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let result = `This card is the ${cardname}`;
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// Send the result as a response
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// Definiere einen Endpunkt für GET-Requests mit dem Parameter 'zeit'
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console.log(zeit);
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app.get('/ergebnis/:karte', (req, res) => {
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console.log(result);
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// Lies den Zeitparameter aus dem path
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let karte = req.params.karte;
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// Send data to all WebSocket clients
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let ergebnis = `${karte}`;
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wss.clients.forEach((client) => {
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if (client.readyState === WebSocket.OPEN) {
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// Sende Daten an alle WebSocket-Clients
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client.send(result);
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wss.clients.forEach((client) => {
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}
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if (client.readyState === WebSocket.OPEN) {
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client.send(ergebnis);
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}
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});
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});
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res.send(result);
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res.send(ergebnis);
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});
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});
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// Start the server on port 3000
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// Starte den Server auf dem Port 3000
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const port = 3000;
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const port = 3000;
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app.listen(port, () => {
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app.listen(port, () => {
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console.log(`Server is running on http://localhost:${port}`);
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console.log(`Server läuft auf http://localhost:${port}`);
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});
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});
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// Start the server on port 3001
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// Starte den Server auf Port 3000
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server.listen(3001, () => {
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server.listen(3001, () => {
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console.log('Server listening on http://localhost:3001');
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console.log('Server listening on http://localhost:3001');
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});
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});
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