Added email subjects, and favourites

index.js

@@ -10,6 +10,7 @@ const config = require('./DB.js');
 const userRoutes = require('./user.route');
 const postRoutes = require('./post.route');
 const categoryRoutes = require('./category.route');
+const mongoSanitize = require('express-mongo-sanitize');
 
 console.log("Starting Kno-Logic Backend Server");
 
@@ -32,6 +33,9 @@ app.use(cors());
 app.use(express.urlencoded({ extended: true }))
 app.use(express.json());
 
+// Sanitize data to prevent NoSQL injections
+app.use(mongoSanitize());
+
 // Express routes
 app.use('/user', userRoutes);
 app.use('/post', postRoutes);