consumer-api/consumer_api/views/consumers_view.py

import json

from db import redis_client
from flask import jsonify, current_app
from flask_classful import FlaskView


class ConsumersView(FlaskView):

    def get(self):

        keys = redis_client.keys('producer_*')

        list_of_customer_ips = []

        for key in keys:
            info = json.loads((redis_client.get(key) or b"{}").decode('utf-8'))
            list_of_customer_ips.append(info['ip'])

        return jsonify(list_of_customer_ips)