How to configure access to swagger.json by domain name?

Question

Python

Hello.
Flask is running on the server via uwsgi (127.0.0.1:56733), access to it is proxied via nginx.
It opens in the browser, but at the same time, JS tries to load swagger.json at the local URL, which ultimately leads to an error:

Fetch errorFailed to fetch http://127.0.0.1:56733/swagger.json

As a result, I can't get the generated documentation for the API.
I also tried installing the ProxyFix middleware.

Application root page code:

from flask import Flask, render_template
from flask_restx import Resource, Api
# from werkzeug.middleware.proxy_fix import ProxyFix
import logging
import os
import shutil

app = Flask(__name__)
# app.wsgi_app = ProxyFix(app.wsgi_app)

api = Api(app, version='1.0', title='My API',
    description='My API',
)

# -- skip --

Answer 1

flask_restx is a fork of Flask-RESTPlus so see here
Swagger UI refers to localhost #223