const monitor = await redis.monitor()

monitor.on("monitor", (time, args, source, database) => {
  console.log(time, args, source, database)
})
We support the Redis MONITOR command, a debugging command that allows you to see all requests processed by your Redis instance in real-time.

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Monitoring Your Usage - Video Guide

In this video, we’ll walk through setting up a monitor instance step-by-step.
The MONITORcommand expects a persistent connection and, therefore, does not work over HTTP.
In this video, we use ioredis to connect to our Upstash Redis database. Using an event handler, we can define what should happen for each executed command against on Redis instance. For example, logging all data to the console. 
const monitor = await redis.monitor()

monitor.on("monitor", (time, args, source, database) => {
  console.log(time, args, source, database)
})