How to integrate restx with blueprint based library like openbrokerapi

[engFelipeMonteiro]

How to use flask-restx with a library that export the blueprint already with its paths, like openbrokerapi.

The code that is on my repo is forked from openbrokerapi and served from a restx and gunicorn server. It is a functional exmaple.

With requestly extension or curl I can add a arbitrary 'X-Broker-Api-Version' in the header, but the swagger page doesn't get fully rendered, see the following information 'No operations defined in spec!'.

How can I use flask-restx with this kind of architeture library?

important code:

webserver/web.py

from flask import Flask
from flask_restx import Api
import logging

import openbrokerapi.api as open_api

logger = logging.getLogger(__name__)
app = Flask(__name__)

authorizations = {
    'basic': {
        'type': 'basic',
    }
}

def initialize_app(app):
    app.config['RESTX_VALIDATE'] = True

    app.register_blueprint(get_api(logger, app), url_prefix='/open')

    return app

def get_api(logger, app):
    blueprint = open_api.get_blueprint(None, None, logger)
    api = Api(
                blueprint,
                version='0.1',
                title='title openservicebroker',
                description='',
                doc='/doc/',
                authorizations=authorizations,
                security='basic',
                url_scheme='http'
    )

    ns_exec = api.namespace('open', description='Endpoints')
    api.add_namespace(ns_exec)
    return api

def run():
    return initialize_app(app)

I can run the code with:

 python -m gunicorn webserver.__main__:wsgi

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