Made all api and helper methods transactional such that each http call will make at most 1 call to firebase
Made all api and helper methods transactional such that each http call will make at most 1 call to firebase

google/playhvz,google/playhvz,google/playhvz,google/playhvz,google/playhvz,google/playhvz,google/playhvz,google/playhvz