In short
Storing the result of an expensive operation so future requests can reuse it instead of recomputing — one of the most effective and most misused performance techniques in backend systems.
How to learn this
- 1Identify one expensive operation in a project that's a good caching candidate.
- 2Measure response time with and without caching for the same endpoint.
- 3Learn the golden rule: cache invalidation is the hard part, not the caching itself.
More topics at this stop
Stuck on this topic? Ask an Insider
Get 1:1 guidance from people who've walked this exact path — on the InsideEdge app.
