将另一个对象传递给主烧瓶应用程序 [英] Pass another object to the main flask application
问题描述
我对如何以正确的方式将对象传递给烧瓶应用程序存在疑问。
这个想法很简单。
我想为我的应用程序创建一个api,这意味着由我的应用程序处理的http请求将触发主应用程序中的methds。
为此,我需要烧瓶来注意我的另一个过程,无论如何。
目前,我有这样的:
if __name__ =='__main__':
Logger = MyProcess()
app.run()
我需要能够这样做:
@ app.route('/ nb_trendy')
def nb_trendy():
res = Logger.get_trendy()
返回jsonify(res)
这意味着我要么给记录器的句柄给应用程序,或直接在应用程序中定义Logger。
但是在每个解决方案中,我都需要创建一个继承应用程序或者覆盖 __ init __()
,并将对象作为para米或修改 run()
方法。
它是这样的:
pre $ class $ MyFlask(Flask):
def __init __():
Flask。 __init __()
Logger = MyProcess()
这也是你要做的方式,还是有更好的方法来做到这一点?
谢谢!
这是一个更一般的版本这个问题: Flask中的Web API
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']
.
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