Flask route at / returns 404 when used with Flask-Restplus

问题

I have a Flask app which has a Flask-RestPlus API as well as a "/" route. When I try to access "/" however, I get a 404. If I remove the Flask-RestPlus extension, the route works. How do I make both parts work together?

from flask import Flask
from flask_restplus import Api

app = Flask(__name__)
api = Api(app, doc="/doc/")  # Removing this makes / work

@app.route("/")
def index():
    return "foobar"

回答1:

flask-restplus defines a different way of assigning routes according to their docs:

@api.route('/')
class Home(Resource):
    def get(self):
        return {'hello': 'world'}

Notice that the api variable is used instead of the app. Moreover, a class is used although I am not 100% sure it is required.

回答2:

This is an open issue in Flask-RestPlus. As described in this comment on that issue, changing the order of the route and Api solves the issue.

from flask import Flask
from flask_restplus import Api

app = Flask(__name__)

@app.route("/")
def index():
    return "foobar"

api = Api(app, doc="/doc/")

来源：https://stackoverflow.com/questions/56539574/flask-route-at-returns-404-when-used-with-flask-restplus