config.py

import os

class Config:
    '''
    General configuration parent class
    '''
    SECRET_KEY = os.environ.get('SECRET_KEY')
    UPLOADED_PHOTOS_DEST = 'app/static/img'
    BASE_URL = 'https://trackapi.nutritionix.com/v2/natural/nutrients'
    X_APP_ID = os.environ.get('X_APP_ID')
    X_APP_KEY = os.environ.get('X_APP_KEY')
    
    # Email configurations
    MAIL_SERVER = 'smtp.googlemail.com'
    MAIL_PORT = 587
    MAIL_USE_TLS = True
    MAIL_USERNAME = os.environ.get("MAIL_USERNAME")
    MAIL_PASSWORD = os.environ.get("MAIL_PASSWORD")

class ProdConfig(Config):
    '''
    Production  configuration child class

    Args:
        Config: The parent configuration class with General configuration settings
    '''
    SQLALCHEMY_DATABASE_URI = os.environ.get("DATABASE_URL", "")
    if SQLALCHEMY_DATABASE_URI.startswith("postgres://"):
        SQLALCHEMY_DATABASE_URI = SQLALCHEMY_DATABASE_URI.replace("postgres://", "postgresql://", 1)

class TestConfig(Config):
    SQLALCHEMY_DATABASE_URI = 'postgresql+psycopg2://peterken:pa55@localhost/project_week_test'

class DevConfig(Config):
    '''
    Development  configuration child class

    Args:
        Config: The parent configuration class with General configuration settings
    '''
    SQLALCHEMY_DATABASE_URI = 'postgresql+psycopg2://peterken:pa55@localhost/project_week'
    DEBUG = True

config_options = {
    'development':DevConfig,
    'production':ProdConfig,
    'test': TestConfig
}