feat: add S3 photo upload functionality and update dependencies

Author: AryamanSi17

backend/app.js

@@ -17,6 +17,9 @@ app.use(express.static('public'));
 import userRoutes from './src/routes/user.routes.js';
 import cvRoutes from './src/routes/cv.routes.js';
 import conferenceRoutes from './src/routes/conference.routes.js';
+import photoRoutes from './src/routes/photo.routes.js';
+
+app.use('/api/photos', photoRoutes);
 
 app.use('/api/users', userRoutes);
 app.use('/api/cv', cvRoutes);

backend/package-lock.json

@@ -12,6 +12,7 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
+    "aws-sdk": "^2.1692.0",
     "bcrypt": "^6.0.0",
     "cookie-parser": "^1.4.7",
     "cors": "^2.8.5",
@@ -21,6 +22,7 @@
     "mongoose": "^8.18.0",
     "multer": "^1.4.4",
     "multer-gridfs-storage": "^5.0.2",
+    "multer-s3": "^3.0.1",
     "nodemon": "^3.1.10",
     "pdfkit": "^0.17.2"
   }

backend/package.json

@@ -0,0 +1,53 @@
+import { s3 } from '../middlewares/s3.upload.middleware.js';
+import User from '../models/user.model.js';
+
+export const uploadProfilePhoto = async (req, res) => {
+    try {
+        if (!req.file) {
+            return res.status(400).json({
+                success: false,
+                message: 'No photo uploaded'
+            });
+        }
+
+        const photoUrl = req.file.location; 
+        const photoKey = req.file.key;      
+
+        res.status(200).json({
+            success: true,
+            data: {
+                url: photoUrl,
+                key: photoKey,
+                message: 'Photo uploaded successfully'
+            }
+        });
+    } catch (error) {
+        res.status(500).json({
+            success: false,
+            message: error.message
+        });
+    }
+};
+
+export const deleteProfilePhoto = async (req, res) => {
+    try {
+        const { photoKey } = req.params;
+
+        const deleteParams = {
+            Bucket: process.env.S3_BUCKET_NAME,
+            Key: photoKey
+        };
+
+        await s3.deleteObject(deleteParams).promise();
+
+        res.status(200).json({
+            success: true,
+            message: 'Photo deleted successfully'
+        });
+    } catch (error) {
+        res.status(500).json({
+            success: false,
+            message: error.message
+        });
+    }
+};

backend/src/controllers/photo.controller.js

@@ -0,0 +1,45 @@
+import AWS from 'aws-sdk';
+import multe from 'multer';
+import multerS3 from 'multer-s3';
+import { v4 as uuidv4 } from 'uuid';
+
+AWS.config.update({
+  accessKeyId: process.env.AWS_ACCESS_KEY_ID,
+  secretAccessKey: process.env.AWS_SECRET_ACCESS_KEY,
+  region: process.env.AWS_REGION,
+});
+
+const s3 = new AWS.S3();
+const uploadPhoto = multer({
+    storage: multerS3({
+        s3: s3,
+        bucket: process.env.S3_BUCKET_NAME,
+        key: function (req, file, cb) {
+            const fileName = `photos/${uuidv4()}-${file.originalname}`;
+            cb(null, fileName);
+        },
+        contentType: multerS3.AUTO_CONTENT_TYPE,
+        metadata: function (req, file, cb) {
+            cb(null, {
+                fieldName: file.fieldname,
+                userId: req.user._id.toString(),
+                uploadDate: new Date().toISOString()
+            });
+        }
+    }),
+    limits: {
+        fileSize: 5 * 1024 * 1024 // 5MB limit
+    },
+    fileFilter: (req, file, cb) => {
+        if (file.mimetype.startsWith('image/')) {
+            cb(null, true);
+        } else {
+            cb(new Error('Only image files are allowed'), false);
+        }
+    }
+});
+
+export { uploadPhoto, s3 };
+
+
+

backend/src/middlewares/s3.upload.middleware.js

@@ -54,7 +54,11 @@ const cvSchema = new mongoose.Schema({
             required: true
         },
         photo: {
-            type: String, // GridFS file ID for profile photo
+            type: String, // S3 URL
+            default: null
+        },
+        photoKey: {
+            type: String,
             default: null
         },
         languages: [{

backend/src/models/cv.model.js

@@ -0,0 +1,16 @@
+import { Router } from 'express';
+import { uploadProfilePhoto, deleteProfilePhoto } from '../controllers/photo.controller.js';
+import { verifyJWT } from '../middlewares/auth.middleware.js';
+import { uploadPhoto } from '../middlewares/s3Upload.middleware.js';
+
+const router = Router();
+
+router.route('/upload').post(
+    verifyJWT,
+    uploadPhoto.single('photo'),
+    uploadProfilePhoto
+);
+
+router.route('/delete/:photoKey').delete(verifyJWT, deleteProfilePhoto);
+
+export default router;