N checkpoints update method backend

package.json

@@ -17,6 +17,7 @@
     "mongodb": "^4.13.0",
     "mongoose": "^6.6.5",
     "nanoid": "^3.3.4",
+    "node": "^25.1.0",
     "passport": "^0.6.0",
     "passport-saml": "^3.2.4",
     "qrcode.react": "^4.0.1"

src/routes/checkpoints.ts

@@ -0,0 +1,53 @@
+import express from 'express';
+import User from '../models/user';
+import isAuthenticated from '../middlewares/isAuthenticated';
+
+export const checkpointsRoute = express.Router();
+
+checkpointsRoute.post('/redeem', async (req, res) => {
+  try {
+    const { userId } = req.body;
+
+    const user = await User.findByIdAndUpdate(
+      userId,
+      {
+        $inc: { n_checkpoints: 1 },
+        $push: { timestamps: new Date() }
+      },
+      { new: true }
+    );
+
+    if (!user) {
+      return res.status(404).json({ error: 'User not found' });
+    }
+
+    res.json({
+      success: true,
+      n_checkpoints: user.n_checkpoints,
+      timestamps: user.timestamps
+    });
+  } catch (error) {
+    console.error('Error redeeming checkpoint:', error);
+    res.status(500).json({ error: 'Failed to redeem checkpoint' });
+  }
+});
+
+checkpointsRoute.get('/:userId', isAuthenticated, async (req, res) => {
+  try {
+    const { userId } = req.params;
+
+    const user = await User.findById(userId).select('n_checkpoints timestamps');
+
+    if (!user) {
+      return res.status(404).json({ error: 'User not found' });
+    }
+
+    res.json({
+      n_checkpoints: user.n_checkpoints,
+      timestamps: user.timestamps
+    });
+  } catch (error) {
+    console.error('Error fetching checkpoints:', error);
+    res.status(500).json({ error: 'Failed to fetch checkpoints' });
+  }
+});

src/routes/index.ts

@@ -4,13 +4,15 @@ import { authRoute } from './auth';
 import { eventsRoute } from './events';
 import { profileRoute } from './profile';
 import { usersRoute } from './users';
+import { checkpointsRoute } from './checkpoints';
 
 export const routes = express.Router();
 
 routes.use('/auth', authRoute);
 routes.use('/events', eventsRoute);
 routes.use('/profile', isAuthenticated, profileRoute);
 routes.use('/users', isAuthenticated, usersRoute);
+routes.use('/checkpoints', checkpointsRoute);
 
 routes.use((_req, res) => {
   res.sendStatus(404);