jwt_mod.py

import jwt

class JwtBase(object):

    _instance = None
    def __new__(class_, *args, **kwargs):
        if not isinstance(class_._instance, class_):
            class_._instance = object.__new__(class_, *args, **kwargs)
        return class_._instance

    @classmethod
    def initalize(cls, private_path, public_path ):
        try:
            cls._publickey_file = open(public_path, "r")
            cls._privatekey_file = open(private_path, "r")
        except:
            raise IOError

        else:
            print cls._privatekey_file
            cls._public_key = cls._publickey_file.read()
            cls._private_key = cls._privatekey_file.read()
    
class Jwt(JwtBase):
    
    @classmethod
    def encoding(cls, payload):
        return jwt.encode(payload, cls._private_key, algorithm="RS512")
    
    @classmethod
    def decoding(cls, encoded_token):    
        return jwt.decode(encoded_token, cls._public_key, verify=True)