Config Loader

config_loader.py

# AWS Lambda Coding & Config (part 4)
# Ben Emson
# https://www.youtube.com/watch?v=o-8U_3s_zWI

import os
import json


class ConfigLoader(object):

    CONFIG_FILE = 'config.json'

    def config(self):
        """ Parse configuration. """
        config_file = os.path.join(
            os.path.dirname(os.path.realpath(__file__)),
            self.CONFIG_FILE)
        if not hasattr(self, '_parsed_config'):
            self._parsed_config = self.load(config_file)
        return self._parsed_config

    def load(self, config_file):
        """ Read JSON file and assign it to an instance variable. """
        with open(config_file) as data_file:
            self._parsed_config = json.load(data_file)
        return self._parsed_config