from flask import Flask, Blueprint
from flask_restx import Resource, Api

app = Flask(__name__)
api = Api(app)

blueprint = Blueprint('api', __name__, url_prefix='/api/v1')
api = Api(blueprint,
    doc='/doc/',
)
app.register_blueprint(blueprint)

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

if __name__ == '__main__':
    app.run(debug=True)