SUCCESS = 1
INVALID = -1
DB_SAVE_ERROR = -2
DB_READ_ERROR = -3
CACHE_SAVE_ERROR = -4
CACHE_READ_ERROR = -5
FILE_SAVE_ERROR = -6
LOGIN_ERROR = -7
NOT_EXISTS = -8
JSON_PARSE_FAIL = -9
TYPE_ERROR = -10
NUMBER_MATCH_ERROR = -11
EMPTY_PARAMS = -12
DATA_EXISTS = -13
AUTH_ERROR = -14
OTHER_LOGIN = -16
VERSION_INVALID = -17
CURL_ERROR = -18
RECORD_NOT_FOUND = -19
DELETE_FAILED = -20
ADD_FAILED = -21
UPDATE_FAILED = -22
PARAM_INVALID = -995
ACCESS_TOKEN_TIMEOUT = -996
SESSION_TIMEOUT = -997
UNKNOWN = -998
EXCEPTION = -999
getConstants()