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Observability

To properly understand what is going on inside your application, you can collect a whole range of telemetry.

An application is properly instrumented when developers don’t need to add more instrumentation to troubleshoot an issue, because they have all of the information they need.
https://opentelemetry.io/docs/concepts/observability-primer/

You can bring your own observability stack. Arrower does not force you into any specific direction, our recommendation is however: Grafana, Loki, Prometheus, and Tempo.

For metrics and traces Arrower uses OTEL, for logging the new slog from the Go standard library.

To quickstart your development the docker-compose.yaml file contains everything you need locally and can give inspiration on how to setup your own infrastructure.