Custom Swagger Flask

customswagger_flask.py

#!/usr/bin/env python

from swagger_ui_bundle import swagger_ui_path
import json
from flask import Flask, Blueprint, send_from_directory, render_template


swagger_bp = Blueprint(
    'swagger_ui',
    __name__,
    static_url_path='',
    static_folder=swagger_ui_path,
    template_folder=swagger_ui_path
)

app = Flask(__name__, static_url_path='')

SWAGGER_UI_CONFIG = {
    "openapi_spec_url": "/docs"
}


@swagger_bp.route('/')
def swagger_ui_index():
    return render_template('index.j2', **SWAGGER_UI_CONFIG)

@app.route('/docs')
def swa():
    with open('customswagger.json') as json_file:
        data = json.load(json_file)
        return data

app.register_blueprint(swagger_bp, url_prefix='/ui')


if __name__ == "__main__":
    app.run()