ethersphere
Use a build tag to toggle Prometheus/metrics
Summary
Not always metrics are needed to be enabled. In certain cases, you'd want to have them disabled to decrease bundle size and gain slight performance gains. Would be very nice if all metrics (including both prometheus and API endpoints) could be disabled using a build tag
Motivation
There is no point for Prometheus metrics in WASM or low-end environments such as EFI modules. Additionally, Prometheus blocks compilation for tinygo.
Implementation
Use build tags. Here's an article explaining how they work: https://leapcell.io/blog/understanding-go-build-tags
Example name: -tag metrics
Drawbacks
Would require a bunch of manual rewriting. You can also check whether Prometheus is included or not by running gsa and observing imports: https://github.com/Zxilly/go-size-analyzer/issues
