Intermediate4 projects

Observability

Know what your system is doing before a user has to tell you.

19+

completed

~17h

total time

projects

Part 1·Beginner·3h·19+ learners

Replace ad-hoc console.log calls with machine-parseable JSON logs, log levels, redaction, and child-logger context.

Part 2·Intermediate·5h·17+ learners

Instrument a Node.js API with Prometheus client metrics, run Prometheus and Grafana locally, and build a real dashboard.

Part 3·Intermediate/Advanced·5h·14+ learners

Instrument a multi-service Node.js app with OpenTelemetry, export spans over OTLP, and visualize the full request path.

Part 4·Advanced·4h·12+ learners

Move from noisy static-threshold alerts to SLO-based, multi-window burn-rate alerting with Alertmanager.