__init__.py

from flask import Flask

from views import *

app = Flask(__name__)
app.register_blueprint(views_bp)

views_bp.add_url_rule('/', 
                      view_func=MainView.as_view('main'))
views_bp.add_url_rule('/user/create/<user_id>/', 
                      view_func=UserView.as_view('user_create'))

views.py

from os import path, environ
import json

from flask import Flask, jsonify
from flask.views import MethodView
from flask.templating import render_template
from flask.blueprints import Blueprint
from celery import Celery

from tasks import add
import settings


views_bp = Blueprint('views', __name__, template_folder='templates')


class MainView(MethodView):
    route_base = '/'
    
    def index(self):
        return render_template('index.html')

 
class UserView(MethodView):
    
    def post(self, user_id):
        pass