diff --git a/src/routes/upload.ts b/src/routes/upload.ts
new file mode 100644
index 0000000..a1b2c3d
--- /dev/null
+++ b/src/routes/upload.ts
@@ -0,0 +1,45 @@
+import express from 'express';
+import multer from 'multer';
+import path from 'path';
+import { db } from '../db';
+
+const router = express.Router();
+
+// Configure multer for file uploads
+const storage = multer.diskStorage({
+  destination: 'public/uploads',
+  filename: (req, file, cb) => {
+    cb(null, file.originalname);
+  }
+});
+
+const upload = multer({ storage });
+
+// Upload avatar endpoint
+router.post('/avatar', upload.single('avatar'), async (req, res) => {
+  const file = req.file;
+  
+  if (!file) {
+    return res.status(400).json({ error: 'No file uploaded' });
+  }
+
+  const userId = req.body.userId;
+  const avatarUrl = `/uploads/${file.filename}`;
+
+  // Save to database
+  await db.query(
+    'UPDATE users SET avatar_url = $1 WHERE id = $2',
+    [avatarUrl, userId]
+  );
+
+  // Log the upload
+  await db.query(
+    'INSERT INTO upload_logs (user_id, filename, uploaded_at) VALUES ($1, $2, NOW())',
+    [userId, file.filename]
+  );
+
+  res.json({
+    success: true,
+    url: avatarUrl
+  });
+});
+
+export default router;
diff --git a/src/app.ts b/src/app.ts
index e1f2g3h..i4j5k6l
--- a/src/app.ts
+++ b/src/app.ts
@@ -5,6 +5,7 @@ import authRoutes from './routes/auth';
 import userRoutes from './routes/user';
+import uploadRoutes from './routes/upload';
 
 const app = express();
 
@@ -15,6 +16,7 @@ app.use(express.json());
 app.use('/api/auth', authRoutes);
 app.use('/api/users', userRoutes);
+app.use('/api/upload', uploadRoutes);
 
 export default app;

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