Building Microservices with Go

Premature optimization

You have probably heard the phrase, so does that mean you should not implement caching until you need it? No; it means you should be attempting to predict the initial load that your system will be under at design time, and the growth in capacity over time, as you are considering the application lifecycle. When creating this design, you will be putting together this data, and you will not be able to reliably predict the speed at which a service will run at. However, you do know that a cache will be cheaper to operate than a data store; so, if possible, you should be designing to use the smallest and cheapest data store possible, and making provision to be able to extend your service by introducing caching at a later ...