Introspection Tools for Helia/js-libp2p
summary
Shows concrete observability for Helia/js-libp2p: a Prometheus via prom-client metric implementation scraped from an HTTP endpoint and visualized in Grafana, a lightweight SimpleMetric callback for browser charts, progress event hooks and abort signals for per-operation tracing, and OpenTelemetry spans. Includes a DevTools extension acting as an in-page inspector that lists peers, transports and pubsub state. Demos exercise dialing, pubsub and WebTransport; results expose a Chrome WebTransport bug (fixed in nightly) and flaky conference Wi‑Fi, Firefox works reliably.
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chapters (9)
- 0:00Introduction to speaker
- 0:25Problem with IPFS complexity
- 1:09Metrics in js-libp2p
- 3:19Prometheus and Grafana demo
- 6:09Progress events for debugging
- 8:35Browser debugging tools
- 10:23Local development tools
- 11:51DevTools inspector demo
- 19:27Conclusion and Q&A
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