CHG: checking

Dockerfile

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+FROM node:21
+
+# Set the working directory
+WORKDIR /app
+
+# Copy package files to the working directory
+COPY package*.json ./
+
+# Install production dependencies
+RUN npm ci --only=production
+
+# Copy the rest of your app's source code
+COPY . .
+
+# Expose the port your app will run on
+EXPOSE 7860
+
+# Start the Node.js application
+CMD ["node", "server.js"]

server.js

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+const http = require('http');
+
+const PORT = process.env.PORT || 7860;
+
+const requestHandler = (req, res) => {
+  console.log(`${req.method} ${req.url}`);
+  res.writeHead(200, { 'Content-Type': 'text/plain' });
+  res.end('Hello from Node.js server!');
+};
+
+const server = http.createServer(requestHandler);
+
+server.listen(PORT, (err) => {
+  if (err) {
+    return console.error('Error starting server:', err);
+  }
+  console.log(`Server is running on port ${PORT}`);
+});