{"order_source"=>"emenu", "order_type"=>"dine_in", "booking_id"=>"",
"customer_id"=>"", "guest_info"=>"", "table_id"=>"1",
"order_items"=>[{"order_item_id"=>1,
                "item_instance_code"=>"II0021",
                "quantity"=>1,
                "options"=>[]},
                {"order_item_id"=>2,
                "item_instance_code"=>"II0042",
                "quantity"=>1, "parent_order_item_id"=>1,
                 "options"=>[]},
                {"order_item_id"=>3,
                 "item_instance_code"=>"II0053",
                 "quantity"=>1,
                 "parent_order_item_id"=>1,
                 "options"=>["mild spicy"]},
                 {"order_item_id"=>4,
                 "item_instance_code"=>"II0031",
                 "quantity"=>1, "options"=>[]},
                 {"order_item_id"=>5,
                 "item_instance_code"=>"II0073",
                "quantity"=>1, "parent_order_item_id"=>4, "options"=>[]}]