chisup/app/__init__.py

from flask import Flask

from app.config import BaseConfig, load_config_from_env


def create_app(config_object=None):
    app = Flask(__name__)
    app.config.from_object(BaseConfig)
    app.config.update(load_config_from_env())

    if config_object:
        if isinstance(config_object, dict):
            app.config.update(config_object)
        else:
            app.config.from_object(config_object)

    from app.api.health import bp as health_bp

    app.register_blueprint(health_bp)
    return app