Add new endpoint for adding two numbers

backend/src/server.ts

@@ -3,6 +3,9 @@ import express from 'express';
 const app = express();
 const PORT = process.env.PORT || 3000;
 
+// Middleware to parse incoming request bodies
+app.use(express.json());
+
 // Sample array of YouTube video URLs for demonstration
 const videoUrls = [
   'https://www.youtube.com/watch?v=dQw4w9WgXcQ',
@@ -19,6 +22,19 @@ app.get('/videos', (req, res) => {
   res.status(200).json(videoUrls);
 });
 
+// New POST endpoint to add two numbers
+app.post('/addNumbers', (req, res) => {
+  const { num1, num2 } = req.body;
+  // Validate that both inputs are numbers
+  if (typeof num1 !== 'number' || typeof num2 !== 'number') {
+    return res.status(400).json({ error: 'Both inputs must be numbers' });
+  }
+  // Calculate the sum
+  const sum = num1 + num2;
+  // Return the sum in a JSON response
+  res.json({ sum });
+});
+
 app.listen(PORT, () => {
   console.log(`Server is running on port ${PORT}`);
 });