diff --git a/Backend/src/models/crawling_status/crawling_status.router.ts b/Backend/src/models/crawling_status/crawling_status.router.ts
index 07ad5f0..f2d7dfd 100644
--- a/Backend/src/models/crawling_status/crawling_status.router.ts
+++ b/Backend/src/models/crawling_status/crawling_status.router.ts
@@ -25,8 +25,8 @@ crawlingstatusRouter.get('/', async (req: Request, res: Response) => {
     try {
         // Authenticate user
         const user_ip = req.connection.remoteAddress ?? '';
-        const session_id = req.params.session_id;
-        const session_key = req.params.session_key;
+        const session_id = (req.query.session_id ?? '').toString();
+        const session_key = (req.query.session_key ?? '').toString();
         const user = await UserService.checkSession(session_id, session_key, user_ip);
 
         if (!user.is_admin) {
diff --git a/Backend/src/models/favorite_shops/favoriteshops.router.ts b/Backend/src/models/favorite_shops/favoriteshops.router.ts
index 4cb0266..eab15bd 100644
--- a/Backend/src/models/favorite_shops/favoriteshops.router.ts
+++ b/Backend/src/models/favorite_shops/favoriteshops.router.ts
@@ -24,8 +24,8 @@ favoriteshopsRouter.get('/', async (req: Request, res: Response) => {
     try {
         // Authenticate user
         const user_ip = req.connection.remoteAddress ?? '';
-        const session_id = req.params.session_id;
-        const session_key = req.params.session_key;
+        const session_id = (req.query.session_id ?? '').toString();
+        const session_key = (req.query.session_key ?? '').toString();
         const user = await UserService.checkSession(session_id, session_key, user_ip);
 
         const priceAlarms = await FavoriteShopsService.getFavoriteShops(user.user_id);
@@ -76,8 +76,8 @@ favoriteshopsRouter.delete('/:id', async (req: Request, res: Response) => {
     try {
         // Authenticate user
         const user_ip = req.connection.remoteAddress ?? '';
-        const session_id = req.params.session_id;
-        const session_key = req.params.session_key;
+        const session_id = (req.query.session_id ?? '').toString();
+        const session_key = (req.query.session_key ?? '').toString();
         const user = await UserService.checkSession(session_id, session_key, user_ip);
 
         // Get info for price alarm creation
diff --git a/Backend/src/models/pricealarms/pricealarms.router.ts b/Backend/src/models/pricealarms/pricealarms.router.ts
index a5d01c5..6a73bca 100644
--- a/Backend/src/models/pricealarms/pricealarms.router.ts
+++ b/Backend/src/models/pricealarms/pricealarms.router.ts
@@ -24,8 +24,8 @@ pricealarmsRouter.get('/', async (req: Request, res: Response) => {
     try {
         // Authenticate user
         const user_ip = req.connection.remoteAddress ?? '';
-        const session_id = req.params.session_id;
-        const session_key = req.params.session_key;
+        const session_id = (req.query.session_id ?? '').toString();
+        const session_key = (req.query.session_key ?? '').toString();
         const user = await UserService.checkSession(session_id, session_key, user_ip);
 
         const priceAlarms = await PriceAlarmsService.getPriceAlarms(user.user_id);
diff --git a/Backend/src/models/vendors/vendors.router.ts b/Backend/src/models/vendors/vendors.router.ts
index 75ccc35..383d6eb 100644
--- a/Backend/src/models/vendors/vendors.router.ts
+++ b/Backend/src/models/vendors/vendors.router.ts
@@ -37,8 +37,8 @@ vendorsRouter.get('/managed', async (req: Request, res: Response) => {
     try {
         // Authenticate user
         const user_ip = req.connection.remoteAddress ?? '';
-        const session_id = req.params.session_id;
-        const session_key = req.params.session_key;
+        const session_id = (req.query.session_id ?? '').toString();
+        const session_key = (req.query.session_key ?? '').toString();
         const user = await UserService.checkSession(session_id, session_key, user_ip);
 
         const vendors = await VendorService.getManagedShops(user.user_id);