Ionosphere.tv
perf: pre-warm concordance cache on appview startup
The concordance takes ~2.5 minutes to build on first request. Now it
starts building in the background after backfill completes, so the
first user request finds a warm cache.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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apps/ionosphere-appview/src/appview.ts
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apps/ionosphere-appview/src/appview.ts
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console.warn("No DID resolved, skipping backfill");
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}
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// Pre-warm the concordance cache in the background
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console.log("[init] Pre-warming concordance cache...");
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fetch(`http://localhost:${PORT}/xrpc/tv.ionosphere.getConcordance`)
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.then(() => console.log("[init] Concordance cache warm"))
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.catch(() => console.warn("[init] Concordance pre-warm failed (will build on first request)"));
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// ── Jetstream for live updates ──────────────────────────────────────────────
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const jetstream = new JetstreamClient({