diff --git a/config/packages/security.yaml b/config/packages/security.yaml
index bcb125dd..ac75eeef 100644
--- a/config/packages/security.yaml
+++ b/config/packages/security.yaml
@@ -49,6 +49,10 @@ security:
             pattern: ^\/test_capi\/
             security: false
 
+        cust_api_v2:
+            pattern: ^\/apiv2\/
+            security: false
+
         warranty_api:
             pattern: ^\/capi\/
             provider: api_provider
diff --git a/src/Controller/CustomerAppAPI/ApiController.php b/src/Controller/CustomerAppAPI/ApiController.php
index cc8f88d6..7104948c 100644
--- a/src/Controller/CustomerAppAPI/ApiController.php
+++ b/src/Controller/CustomerAppAPI/ApiController.php
@@ -26,7 +26,7 @@ class ApiController extends BaseApiController
 
         // load env file
         $dotenv = new Dotenv();
-        $dotenv->loadEnv($kernel->getProjectDir() . '.env');
+        $dotenv->loadEnv($kernel->getProjectDir() . '/.env');
     }
 
     protected function debugRequest(Request $req)
@@ -35,12 +35,9 @@ class ApiController extends BaseApiController
         error_log(print_r($all, true));
     }
 
-    protected function validateParams(Request $req, $params = [])
+    protected function hasMissingParams(Request $req, $params = [])
     {
-        $missing = $this->checkRequiredParameters($req, $params);
-        if ($missing) {
-            return new ApiResponse(false, $missing, []);
-        }
+        return $this->checkRequiredParameters($req, $params);
     }
 
     protected function validateSession($api_key)
@@ -48,16 +45,27 @@ class ApiController extends BaseApiController
         // check if the session exists
         $session = $this->em->getRepository(MobileSession::class)->find($api_key);
         if ($session === null) {
-            return new ApiResponse(false, 'Invalid API Key.');
+            return false;
         }
 
         $this->session = $session;
+        return true;
     }
 
     protected function validateRequest(Request $req, $params = [])
     {
-        $this->validateParams($req, $params);
-        $this->validateSession($req->query->get('api_key'));
+        $error = $this->hasMissingParams($req, $params);
+
+        if (!$error) {
+            if (!$this->validateSession($req->query->get('api_key'))) {
+                $error = 'Invalid API Key.';
+            }
+        }
+
+        return [
+            'is_valid' => !$error,
+            'message' => $error,
+        ];
     }
 
     protected function findWarranty($plate_number)
diff --git a/src/Controller/CustomerAppAPI/AppController.php b/src/Controller/CustomerAppAPI/AppController.php
index 21af64bf..c78eba43 100644
--- a/src/Controller/CustomerAppAPI/AppController.php
+++ b/src/Controller/CustomerAppAPI/AppController.php
@@ -10,10 +10,14 @@ class AppController extends ApiController
     public function versionCheck(Request $req)
     {
         // validate params
-        $this->validateParams($req, [
+        $missing = $this->hasMissingParams($req, [
             'version',
         ]);
 
+        if ($missing) {
+            return new ApiResponse(false, $missing);
+        }
+
         $need_update = false;
         $msg = 'Version is up to date.';
 
diff --git a/src/Controller/CustomerAppAPI/AuthController.php b/src/Controller/CustomerAppAPI/AuthController.php
index fd98a038..a206f660 100644
--- a/src/Controller/CustomerAppAPI/AuthController.php
+++ b/src/Controller/CustomerAppAPI/AuthController.php
@@ -17,14 +17,19 @@ class AuthController extends ApiController
     public function register(Request $req)
     {
         // validate params
-        $this->validateParams($req, [
+        $missing = $this->hasMissingParams($req, [
             'phone_model',
             'os_type',
             'os_version',
             'phone_id',
         ]);
 
+        if ($missing) {
+            return new ApiResponse(false, $missing);
+        }
+
         // retry until we get a unique id
+        /*
         while (true) {
             try {
                 // instantiate session
@@ -54,20 +59,25 @@ class AuthController extends ApiController
 
             break;
         }
+        */
 
         // return data
         return new ApiResponse(true, '', [
-            'session_id' => $sess->getID(),
+            'session_id' => 123, //$sess->getID(),
         ]);
     }
 
     public function confirmNumber(RisingTideGateway $rt, Request $req, TranslatorInterface $translator)
     {
         // validate request
-        $this->validateRequest($req, [
+        $validity = $this->validateRequest($req, [
             'phone_number'
         ]);
 
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
+
         // phone number
         $phone_number = $req->request->get('phone_number');
 
@@ -116,10 +126,14 @@ class AuthController extends ApiController
     public function validateCode(Request $req)
     {
         // validate request
-        $this->validateRequest($req, [
-            'code'
+        $validity = $this->validateRequest($req, [
+            'code',
         ]);
 
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
+
         // code is wrong
         $code = $req->request->get('code');
         if ($this->session->getConfirmCode() != $code) {
@@ -156,7 +170,11 @@ class AuthController extends ApiController
     public function resendCode(Request $req, RisingTideGateway $rt, TranslatorInterface $translator)
     {
         // validate request
-        $this->validateRequest($req);
+        $validity = $this->validateRequest($req);
+
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
 
         // already confirmed
         if ($this->session->isConfirmed()) {
diff --git a/src/Controller/CustomerAppAPI/CustomerController.php b/src/Controller/CustomerAppAPI/CustomerController.php
index e0b5ab5d..b59da4e8 100644
--- a/src/Controller/CustomerAppAPI/CustomerController.php
+++ b/src/Controller/CustomerAppAPI/CustomerController.php
@@ -15,7 +15,11 @@ class CustomerController extends ApiController
     public function getInfo(Request $req)
     {
         // validate params
-        $this->validateRequest($req);
+        $validity = $this->validateRequest($req);
+
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
 
         // if no customer found
         $cust = $this->session->getCustomer();
@@ -40,11 +44,15 @@ class CustomerController extends ApiController
     public function updateInfo(Request $req)
     {
         // validate params
-        $this->validateRequest($req, [
+        $validity = $this->validateRequest($req, [
             'first_name',
             'last_name',
         ]);
 
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
+
         $cust = $this->updateCustomerInfo($req);
 
         $policy_mobile_id = $_ENV['POLICY_MOBILE'];
@@ -64,7 +72,11 @@ class CustomerController extends ApiController
     public function getStatus(Request $req)
     {
         // validate params
-        $this->validateRequest($req);
+        $validity = $this->validateRequest($req);
+
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
 
         // set data
         $data = [];
@@ -105,7 +117,11 @@ class CustomerController extends ApiController
     public function getCustomerHash(Request $req, HashGenerator $hash)
     {
         // validate params
-        $this->validateRequest($req);
+        $validity = $this->validateRequest($req);
+
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
 
         // get customer
         $cust = $this->session->getCustomer();
diff --git a/src/Controller/CustomerAppAPI/DeviceController.php b/src/Controller/CustomerAppAPI/DeviceController.php
index 526c2541..b09acf18 100644
--- a/src/Controller/CustomerAppAPI/DeviceController.php
+++ b/src/Controller/CustomerAppAPI/DeviceController.php
@@ -10,10 +10,14 @@ class DeviceController extends ApiController
     public function updateDeviceID(Request $req)
     {
         // validate params
-        $this->validateRequest($req, [
+        $validity = $this->validateRequest($req, [
             'device_id',
         ]);
 
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
+
         $device_id = $req->request->get('device_id');
         $this->session->setDevicePushID($device_id);
 
diff --git a/src/Controller/CustomerAppAPI/EstimateController.php b/src/Controller/CustomerAppAPI/EstimateController.php
index 95fdc770..d6a61cc9 100644
--- a/src/Controller/CustomerAppAPI/EstimateController.php
+++ b/src/Controller/CustomerAppAPI/EstimateController.php
@@ -16,13 +16,17 @@ class EstimateController extends ApiController
         // $this->debugRequest($req);
 
         // validate params
-        $this->validateRequest($req, [
+        $validity = $this->validateRequest($req, [
             'service_type',
             'cv_id',
             // 'batt_id',
             'trade_in',
         ]);
 
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
+
         // customer
         $cust = $this->session->getCustomer();
         if ($cust == null) {
diff --git a/src/Controller/CustomerAppAPI/JobOrderController.php b/src/Controller/CustomerAppAPI/JobOrderController.php
index 94f456ac..676cbbeb 100644
--- a/src/Controller/CustomerAppAPI/JobOrderController.php
+++ b/src/Controller/CustomerAppAPI/JobOrderController.php
@@ -41,7 +41,11 @@ class JobOrderController extends ApiController
     public function getOngoing(Request $req)
     {
         // validate params
-        $this->validateRequest($req);
+        $validity = $this->validateRequest($req);
+
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
 
         // get customer
         $cust = $this->session->getCustomer();
@@ -79,10 +83,14 @@ class JobOrderController extends ApiController
     public function getJOInvoice(Request $req)
     {
         // validate params
-        $this->validateRequest($req, [
+        $validity = $this->validateRequest($req, [
             'jo_id',
         ]);
 
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
+
         // get job order
         $jo_id = $req->query->get('jo_id');
         $jo = $this->em->getRepository(JobOrder::class)->find($jo_id);
@@ -170,11 +178,15 @@ class JobOrderController extends ApiController
     public function cancelJobOrder(Request $req, MQTTClient $mclient)
     {
         // validate params
-        $this->validateRequest($req, [
+        $validity = $this->validateRequest($req, [
             'jo_id',
             'reason',
         ]);
 
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
+
         // get job order
         $jo_id = $req->request->get('jo_id');
         $jo = $this->em->getRepository(JobOrder::class)->find($jo_id);
@@ -225,7 +237,11 @@ class JobOrderController extends ApiController
     public function getJobOrderInfo($id, Request $req, RiderTracker $rt)
     {
         // validate params
-        $this->validateRequest($req);
+        $validity = $this->validateRequest($req);
+
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
 
         // get customer
         $cust = $this->session->getCustomer();
@@ -256,7 +272,11 @@ class JobOrderController extends ApiController
     public function getJOHistory(Request $req)
     {
         // validate params
-        $this->validateRequest($req);
+        $validity = $this->validateRequest($req);
+
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
 
         // get customer
         $cust = $this->session->getCustomer();
@@ -364,7 +384,11 @@ class JobOrderController extends ApiController
     public function getLatestJobOrder(Request $req, RiderTracker $rt)
     {
         // validate params
-        $this->validateRequest($req);
+        $validity = $this->validateRequest($req);
+
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
 
         // get customer
         $cust = $this->session->getCustomer();
@@ -390,7 +414,11 @@ class JobOrderController extends ApiController
     public function getAllOngoingJobOrders(Request $req, RiderTracker $rt)
     {
         // validate params
-        $this->validateRequest($req);
+        $validity = $this->validateRequest($req);
+
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
 
         // get customer
         $cust = $this->session->getCustomer();
@@ -415,7 +443,11 @@ class JobOrderController extends ApiController
     public function getOngoingJobOrderCount(Request $req)
     {
         // validate params
-        $this->validateRequest($req);
+        $validity = $this->validateRequest($req);
+
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
 
         // get customer
         $cust = $this->session->getCustomer();
@@ -446,7 +478,7 @@ class JobOrderController extends ApiController
         HubFilteringGeoChecker $hub_geofence
     ) {
         // validate params
-        $this->validateRequest($req, [
+        $validity = $this->validateRequest($req, [
             'service_type',
             'cv_id',
             'trade_in',
@@ -456,6 +488,10 @@ class JobOrderController extends ApiController
             'mode_of_payment',
         ]);
 
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
+
         // trade in type
         $trade_in = $req->request->get('trade_in');
 
@@ -898,7 +934,7 @@ class JobOrderController extends ApiController
         HubFilteringGeoChecker $hub_geofence
     ) {
         // validate params
-        $this->validateRequest($req, [
+        $validity = $this->validateRequest($req, [
             'service_type',
             'cv_id',
             // 'batt_id',
@@ -909,6 +945,10 @@ class JobOrderController extends ApiController
             'mode_of_payment',
         ]);
 
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
+
         // trade in type
         $trade_in = $req->request->get('trade_in');
 
@@ -1210,7 +1250,11 @@ class JobOrderController extends ApiController
     public function getCompletedJobOrders(Request $req, EntityManagerInterface $em, RiderTracker $rt)
     {
         // validate params
-        $this->validateRequest($req);
+        $validity = $this->validateRequest($req);
+
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
 
         // get customer
         $cust = $this->session->getCustomer();
diff --git a/src/Controller/CustomerAppAPI/LocationController.php b/src/Controller/CustomerAppAPI/LocationController.php
index 161583e2..a0832df5 100644
--- a/src/Controller/CustomerAppAPI/LocationController.php
+++ b/src/Controller/CustomerAppAPI/LocationController.php
@@ -22,11 +22,15 @@ class LocationController extends ApiController
     public function locationSupport(Request $req, GeofenceTracker $geo)
     {
         // validate params
-        $this->validateRequest($req, [
+        $validity = $this->validateRequest($req, [
             'longitude',
             'latitude',
         ]);
 
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
+
         $long = $req->query->get('longitude');
         $lat = $req->query->get('latitude');
 
@@ -71,11 +75,15 @@ class LocationController extends ApiController
         MapTools $map_tools
     ) {
         // validate params
-        $this->validateRequest($req, [
+        $validity = $this->validateRequest($req, [
             'longitude',
             'latitude',
         ]);
 
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
+
         $coordinates = new Point($req->query->get('longitude'), $req->query->get('latitude'));
 
         // add checking if customer has a pre-registered hub
@@ -119,7 +127,7 @@ class LocationController extends ApiController
     public function addLocation(Request $req)
     {
         // validate params
-        $this->validateRequest($req, [
+        $validity = $this->validateRequest($req, [
             'name',
             'address',
             'longitude',
@@ -127,6 +135,10 @@ class LocationController extends ApiController
             'landmark',
         ]);
 
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
+
         // get customer
         $cust = $this->session->getCustomer();
         if ($cust == null) {
@@ -176,7 +188,11 @@ class LocationController extends ApiController
     public function getLocations(Request $req)
     {
         // validate params
-        $this->validateRequest($req);
+        $validity = $this->validateRequest($req);
+
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
 
         // get customer
         $cust = $this->session->getCustomer();
diff --git a/src/Controller/CustomerAppAPI/PartnerController.php b/src/Controller/CustomerAppAPI/PartnerController.php
index c1cef726..7ae0e284 100644
--- a/src/Controller/CustomerAppAPI/PartnerController.php
+++ b/src/Controller/CustomerAppAPI/PartnerController.php
@@ -13,7 +13,11 @@ class PartnerController extends ApiController
     public function getPartnerInformation(Request $req, $pid)
     {
         // validate params
-        $this->validateRequest($req);
+        $validity = $this->validateRequest($req);
+
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
 
         // get partner
         $partner = $this->em->getRepository(Partner::class)->findOneBy(['id' => $pid]);
@@ -56,13 +60,17 @@ class PartnerController extends ApiController
     public function getClosestPartners(Request $req)
     {
         // validate params
-        $this->validateRequest($req, [
+        $validity = $this->validateRequest($req, [
             'longitude',
             'latitude',
             'service_id',
             'limit',
         ]);
 
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
+
         $long = $req->query->get('longitude');
         $lat = $req->query->get('latitude');
         $service_id = $req->query->get('service_id');
@@ -120,11 +128,15 @@ class PartnerController extends ApiController
     public function reviewPartner($pid, Request $req)
     {
         // validate params
-        $this->validateRequest($req, [
+        $validity = $this->validateRequest($req, [
             'rating',
             'message',
         ]);
 
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
+
         $rating = $req->request->get('rating');
         $msg = $req->request->get('message');
 
diff --git a/src/Controller/CustomerAppAPI/PrivacyController.php b/src/Controller/CustomerAppAPI/PrivacyController.php
index a57e8e50..005ba097 100644
--- a/src/Controller/CustomerAppAPI/PrivacyController.php
+++ b/src/Controller/CustomerAppAPI/PrivacyController.php
@@ -12,11 +12,15 @@ class PrivacyController extends ApiController
     public function privacySettings(Request $req)
     {
         // validate params
-        $this->validateRequest($req, [
+        $validity = $this->validateRequest($req, [
             'priv_third_party',
             // 'priv_promo',
         ]);
 
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
+
         // get customer
         $cust = $this->session->getCustomer();
         if ($cust == null) {
diff --git a/src/Controller/CustomerAppAPI/PromoController.php b/src/Controller/CustomerAppAPI/PromoController.php
index accf2cac..7a5d9360 100644
--- a/src/Controller/CustomerAppAPI/PromoController.php
+++ b/src/Controller/CustomerAppAPI/PromoController.php
@@ -10,7 +10,11 @@ class PromoController extends ApiController
     public function listPromos(Request $req)
     {
         // validate params
-        $this->validateRequest($req);
+        $validity = $this->validateRequest($req);
+
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
 
         // response
         return new ApiResponse();
diff --git a/src/Controller/CustomerAppAPI/RiderController.php b/src/Controller/CustomerAppAPI/RiderController.php
index 5f976083..fb57b09b 100644
--- a/src/Controller/CustomerAppAPI/RiderController.php
+++ b/src/Controller/CustomerAppAPI/RiderController.php
@@ -17,7 +17,11 @@ class RiderController extends ApiController
     public function getRiderStatus(Request $req, RiderTracker $rt)
     {
         // validate params
-        $this->validateRequest($req);
+        $validity = $this->validateRequest($req);
+
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
 
         // get customer
         $cust = $this->session->getCustomer();
@@ -159,11 +163,15 @@ class RiderController extends ApiController
     public function addRiderRating(Request $req)
     {
         // validate params
-        $this->validateRequest($req, [
+        $validity = $this->validateRequest($req, [
             'jo_id',
             'rating',
         ]);
 
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
+
         // get customer
         $cust = $this->session->getCustomer();
         if ($cust == null) {
diff --git a/src/Controller/CustomerAppAPI/ScheduleController.php b/src/Controller/CustomerAppAPI/ScheduleController.php
index 57faaa8e..6edf8a68 100644
--- a/src/Controller/CustomerAppAPI/ScheduleController.php
+++ b/src/Controller/CustomerAppAPI/ScheduleController.php
@@ -12,7 +12,11 @@ class ScheduleController extends ApiController
     public function scheduleOptionStatus(Request $req)
     {
         // validate params
-        $this->validateRequest($req);
+        $validity = $this->validateRequest($req);
+
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
 
         $schedule_choice = true;
 
diff --git a/src/Controller/CustomerAppAPI/ServiceController.php b/src/Controller/CustomerAppAPI/ServiceController.php
index a134194b..3d4eeaa3 100644
--- a/src/Controller/CustomerAppAPI/ServiceController.php
+++ b/src/Controller/CustomerAppAPI/ServiceController.php
@@ -10,7 +10,11 @@ class ServiceController extends ApiController
     public function listServices(Request $req)
     {
         // validate params
-        $this->validateRequest($req);
+        $validity = $this->validateRequest($req);
+
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
 
         // services
         $results = $this->em->getRepository(Service::class)->findAll();
diff --git a/src/Controller/CustomerAppAPI/VehicleController.php b/src/Controller/CustomerAppAPI/VehicleController.php
index a48f046a..51a8ce80 100644
--- a/src/Controller/CustomerAppAPI/VehicleController.php
+++ b/src/Controller/CustomerAppAPI/VehicleController.php
@@ -16,7 +16,11 @@ class VehicleController extends ApiController
     public function listVehicleManufacturers(Request $req)
     {
         // validate params
-        $this->validateRequest($req);
+        $validity = $this->validateRequest($req);
+
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
 
         // get manufacturer list
         $mfgs = $this->em->getRepository(VehicleManufacturer::class)->findBy(['flag_mobile' => true], ['name' => 'asc']);
@@ -37,7 +41,11 @@ class VehicleController extends ApiController
     public function listVehicleMakes(Request $req, $mfg_id)
     {
         // validate params
-        $this->validateRequest($req);
+        $validity = $this->validateRequest($req);
+
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
 
         // get manufacturer
         $mfg = $this->em->getRepository(VehicleManufacturer::class)->find($mfg_id);
@@ -77,19 +85,36 @@ class VehicleController extends ApiController
     public function addVehicle(Request $req)
     {
         // check requirements
-        $this->checkVehicleRequirements($req);
+        $validity = $this->checkVehicleRequirements($req);
+
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
 
         // customer vehicle
         $cv = new CustomerVehicle();
 
-        // set object and return
-        $this->setCustomerVehicleObject($req, $cv);
+        // set object
+        $res = $this->setCustomerVehicleObject($req, $cv);
+        if (!$res['success']) {
+            return new ApiResponse(false, $res['error']);
+        }
+
+        // response
+        return new ApiResponse(true, '', [
+            'cv_id' => $res['cv_id'],
+        ]);
+
     }
 
     public function updateVehicle(Request $req, $id)
     {
         // check requirements
-        $this->checkVehicleRequirements($req);
+        $validity = $this->checkVehicleRequirements($req);
+
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
 
         // get customer vehicle
         $cv = $this->em->getRepository(CustomerVehicle::class)->find($id);
@@ -104,14 +129,26 @@ class VehicleController extends ApiController
             return new ApiResponse(false, 'Invalid vehicle.');
         }
 
-        // set object and return
-        $this->setCustomerVehicleObject($req, $cv);
+        // set object
+        $res = $this->setCustomerVehicleObject($req, $cv);
+        if (!$res['success']) {
+            return new ApiResponse(false, $res['error']);
+        }
+
+        // response
+        return new ApiResponse(true, '', [
+            'cv_id' => $res['cv_id'],
+        ]);
     }
 
     public function listVehicles(Request $req)
     {
         // validate params
-        $this->validateRequest($req);
+        $validity = $this->validateRequest($req);
+
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
 
         // customer
         $cust = $this->session->getCustomer();
@@ -167,7 +204,11 @@ class VehicleController extends ApiController
     public function getCompatibleBatteries(Request $req, $vid)
     {
         // validate params
-        $this->validateRequest($req);
+        $validity = $this->validateRequest($req);
+
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
 
         // get vehicle
         $vehicle = $this->em->getRepository(Vehicle::class)->find($vid);
@@ -212,7 +253,11 @@ class VehicleController extends ApiController
     public function removeVehicle($id, Request $req)
     {
         // validate params
-        $this->validateRequest($req);
+        $validity = $this->validateRequest($req);
+
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
 
         // get customer
         $cust = $this->session->getCustomer();
@@ -243,7 +288,7 @@ class VehicleController extends ApiController
     protected function checkVehicleRequirements(Request $req)
     {
         // validate params
-        $this->validateRequest($req, [
+        return $this->validateRequest($req, [
             'make_id',
             'name',
             'plate_num',
@@ -267,13 +312,19 @@ class VehicleController extends ApiController
         // check customer
         $cust = $this->session->getCustomer();
         if ($cust == null) {
-            return new ApiResponse(false, 'No customer information found.');
+            return [
+                'success' => false,
+                'error' => 'No customer information found.',
+            ];
         }
 
         // get vehicle
         $vehicle = $this->em->getRepository(Vehicle::class)->find($req->request->get('make_id'));
         if ($vehicle == null) {
-            return new ApiResponse(false, 'Invalid vehicle make id.');
+            return [
+                'success' => false,
+                'error' => 'Invalid vehicle make id.',
+            ];
         }
 
         $cv->setCustomer($cust)
@@ -311,9 +362,10 @@ class VehicleController extends ApiController
         $this->em->flush();
 
         // response
-        return new ApiResponse(true, '', [
+        return [
+            'success' => true,
             'cv_id' => $cv->getID(),
-        ]);
+        ];
     }
 
     protected function normalizeString($string)
diff --git a/src/Controller/CustomerAppAPI/WarrantyController.php b/src/Controller/CustomerAppAPI/WarrantyController.php
index 28026ae2..78c202d6 100644
--- a/src/Controller/CustomerAppAPI/WarrantyController.php
+++ b/src/Controller/CustomerAppAPI/WarrantyController.php
@@ -20,10 +20,14 @@ class WarrantyController extends ApiController
     public function activateWarranty(Request $req)
     {
         // validate params
-        $this->validateRequest($req, [
+        $validity = $this->validateRequest($req, [
             'plate_number',
         ]);
 
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
+
         $plate_number = $req->request->get('plate_number');
 
         // find warranty using plate number
@@ -51,7 +55,11 @@ class WarrantyController extends ApiController
     public function warrantyCheck($serial, Request $req, WarrantyRaffleLogger $raffle_logger)
     {
         // validate params
-        $this->validateRequest($req);
+        $validity = $this->validateRequest($req);
+
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
 
         // check if warranty serial is there
         $serial = $this->cleanSerial($serial);
@@ -264,13 +272,17 @@ class WarrantyController extends ApiController
         WarrantyAPILogger $logger
     ) {
         // validate params
-        $this->validateRequest($req, [
+        $validity = $this->validateRequest($req, [
             'first_name',
             'last_name',
             'plate_number',
             'date_purchase',
         ]);
 
+        if (!$validity['is_valid']) {
+            return new ApiResponse(false, $validity['error']);
+        }
+
         // handle file uploads
         $invoice = $req->files->get('invoice');
         $warr_card = $req->files->get('warr_card');
@@ -312,6 +324,9 @@ class WarrantyController extends ApiController
             $source,
             $raffle_logger
         );
+        if (!$res['success']) {
+            return new ApiResponse(false, $res['error']);
+        }
 
         $this->em->flush();
 
@@ -403,7 +418,10 @@ class WarrantyController extends ApiController
         // get serial
         $warr_serial = $this->em->getRepository(WarrantySerial::class)->find($serial);
         if ($warr_serial == null) {
-            return new ApiResponse(false, 'Invalid warranty serial code.');
+            return [
+                'success' => false,
+                'error' => 'Invalid warranty serial code.',
+            ];
         }
 
         // check if warranty exists already
@@ -431,7 +449,10 @@ class WarrantyController extends ApiController
                 $logger->logWarrantyInfo($log_data, $error_msg, $user_id, $action, $source);
 
                 // response
-                return new ApiResponse(false, $error_msg);
+                return [
+                    'success' => false,
+                    'error' => $error_msg,
+                ];
             }
 
             $sms_msg = $trans->trans('warranty_update_confirm');
@@ -459,7 +480,10 @@ class WarrantyController extends ApiController
                 $logger->logWarrantyInfo($log_data, $error_msg, $user_id, $action, $source);
 
                 // response
-                return new ApiResponse(false, $error_msg);
+                return [
+                    'success' => false,
+                    'error' => $error_msg,
+                ];
             }
         }
 
@@ -474,7 +498,10 @@ class WarrantyController extends ApiController
             $logger->logWarrantyInfo($log_data, $error_msg, $user_id, $action, $source);
 
             // response
-            return new ApiResponse(false, $error_msg);
+            return [
+                'success' => false,
+                'error' => $error_msg,
+            ];
         }
 
         $customer = $this->session->getCustomer();
@@ -562,7 +589,9 @@ class WarrantyController extends ApiController
         $raffle_logger->logRaffleInfo($data_sent, $raffle_data);
 
         // response
-        return new ApiResponse();
+        return [
+            'success' => true,
+        ];
     }
 
     protected function findCustomerVehicle($customer, $plate_number)