title: Redis Nodejs (Express) switch to database if servers go offline
body: <p>I would like to know how I can do some sort of error handling in Redis NodeJS. I want the code to check if Redis server is online, and if it isnt it switches to fetch from the Database instead. I am using Redis 4.0, the issue I am getting is if I use the current async function, and the server is down it just hangs there</p>