查看应用程序工厂 ，这应该做你想要的。您将创建一个返回您的Flask应用程序的工厂，您将发送记录器 - 如下所示：

  def create_app （logger_instance）：
 app = Flask（__ name__）
 app.config ['LOGGER'] = logger_instance 
 return app 
 

然后在你的runserver.py中创建并传入记录器：

  from yourapp import create_app $ b $ if if __name__ =='__main__'：
 logger = MyProcess（）
 app = create_app（logger）
 app.run（）
 

完成后，您的应用程序可以引用 app.config中的记录器[ 'LOGGER'] 。

I got a doubt about how to pass an object to a flask app in the correct way.

The idea is simple.

I wan to create an api for my application, which means that http requests processed by my flask application will trigger meothds in my main application.

For that, I need flask to be aware of my other process, one way or another.

Currently, I have something like :

if __name__ == '__main__':
    Logger = MyProcess()
    app.run()

I need to be able to do something like that :

@app.route('/nb_trendy')
def nb_trendy():

    res = Logger.get_trendy()
    return jsonify(res)

which means that I either need to either give a handle on Logger to app, or directly define Logger inside app.

But in each of the solutions I can find, I need to create a that inherits app, to either override __init__() and takes objects as parameters, or modify the run() method.

the current way I would do it is though :

class MyFlask(Flask):
    def __init__():
        Flask.__init__()
        Logger = MyProcess()

Is this also the way you would do it, or is there a better way to do this?

Thanks!

Here is a more general version of this question: Web API in Flask

Take a look at application factories, which should do what you're looking for. You'd create a factory that returned your Flask app that you'd send the logger to - something like this:

def create_app(logger_instance):
    app = Flask(__name__)
    app.config['LOGGER'] = logger_instance
    return app

And then in your runserver.py, you'd create and pass in the logger:

from yourapp import create_app
if __name__ == '__main__':
    logger = MyProcess()
    app = create_app(logger)
    app.run()

Once that's done, your app can refer to the logger inside app.config['LOGGER'].