In recent years, Redis has become a common occurrence in a Node.js application stack. Though its most popular use case is caching, Redis has many other use cases where you can take advantage of ...

Because we’re using Redis to keep track of the counter, this would operate within a stateless environment (behind a load balancer/proxy to any number of Node.js instances).

Redis has built-in data structures, atomic commands, and time-to-live (TTL) capabilities that can be used to power metering use cases. Redis runs on a single thread.