redicConnection.js

import Redis from 'ioredis';

const PORT = process.env.REDIS_PORT;
const HOST = process.env.REDIS_HOST;
const client = new Redis(PORT, HOST);
const subscriber = new Redis(PORT, HOST);

const opts = {
  createClient(type) {
    switch (type) {
    case 'client':
      return client;
    case 'subscriber':
      return subscriber;
    default:
      return new Redis(PORT, HOST);
    }
  },
};

export default opts;