public function get_all_deliveries_post()
 {
     $deliveries_repo = new Deliveries_Repository($this->base_model->get_db_instance());
     $deliveries = $deliveries_repo->get_all_deliveries();
     $data = array();
     foreach ($deliveries as $delivery) {
         array_push($data, array('id' => $delivery->id, 'branchId' => $delivery->branch_id, 'created_at' => $delivery->created_at, 'status' => $delivery->status));
     }
     echo json_encode($data);
 }