@hanzogui/telemetry

Zero-config telemetry for any Hanzo surface — web, desktop and native.

If you mount <GuiProvider> from @hanzo/gui, you already have it. There is nothing to install, import or wire: pageviews, unhandled errors, React render errors and interaction capture reach the one Hanzo endpoint, with the product name resolved from the runtime and the ingest key read from the environment.

import { GuiProvider } from '@hanzo/gui'

<GuiProvider config={config}>{children}</GuiProvider>   // telemetry included
<GuiProvider config={config} telemetry={false}>…        // opt out
<GuiProvider config={config} telemetry={{ product: 'studio' }}>…

Mount it yourself only when you are not a gui app, or when you need to drive pageviews from your router:

import { TelemetryProvider } from '@hanzogui/telemetry'

export default function Root({ children }) {
  return <TelemetryProvider path={usePathname()}>{children}</TelemetryProvider>
}

It is also available from the component layer as @hanzo/ui/telemetry, which re-exports this package unchanged — so an app that already depends on @hanzo/ui adds nothing.

One stream, never two

GuiProvider mounts <TelemetryProvider owner="gui">, and that posture is the whole reason it is safe to turn on for every app at once: a gui-owned provider collects only while nothing else is collecting.

| The app mounts | Where | What gui does | | --------------------------------------------- | ------------------- | -------------------------------------------------------- | | nothing | — | collects — this is the free case | | <AnalyticsProvider> / <TelemetryProvider> | above GuiProvider | goes inert, and passes the app's client straight through | | <TelemetryProvider> | below GuiProvider | goes inert; the app owns the stream | | a second <GuiProvider> | anywhere | one client, one stream |

Ownership is a claim on a module-scope slot, not a render-time guess, so it survives late mounts (a lazy route takes the stream) and unmounts (gui takes it back). owner="app" is the default for a provider you mount yourself and always wins.

The one shape gui cannot see is a raw @hanzo/event <AnalyticsProvider> below GuiProvider: React context does not look down, and unlike <TelemetryProvider> a raw one claims nothing. Those apps pass telemetry={false} until they drop their own wiring.

One endpoint, three lenses

Everything — pageviews, product events, exceptions, interaction capture — is POSTed as one batched stream to the one Hanzo endpoint:

POST https://api.hanzo.ai/v1/event   { batch: [Event, …] }

Cloud lenses that single stream into three views:

| Lens | Host | What it shows | | ---------------- | -------------------- | ------------------------------------------ | | Errors | sentry.hanzo.ai | exceptions, stacks, session capture | | Web analytics | analytics.hanzo.ai | pageviews, referrers, campaigns | | Product insights | insights.hanzo.ai | funnels, notebooks, analytics_errors |

Errors land in insights too, so a funnel drop joins to the exception that caused it. Those three hosts are dashboards. They are never ingest endpoints: there is exactly one API host, which is why there is nothing to configure.

What you get for free

• Pageviews, including SPA route changes. Pass path (Next: usePathname()) to drive them from your router, or pass nothing and the History API drives them.
• Errors — window.onerror, unhandled rejections, and React render errors. This is the @sentry replacement; there is no browser Sentry SDK and no CDN script, so a default-src 'none' CSP cannot break it.
• Session capture — every click/input/submit annotated with a semantic hierarchy (navigation/Dashboard/UserCard/button[save]), so a replay is readable rather than a pixel movie. Loaded with a dynamic import() inside an idle callback, in its own chunk, so it never costs LCP.
• First-touch attribution and cohorts (channel, refCode, signupWeek) on every event.
• Product inference from the hostname — console.hanzo.ai reports as console, hanzo.chat as chat, hanzo.ai as site.

Privacy

• Do-Not-Track and Global Privacy Control are honored by default. With either signal set and no explicit in-app choice, nothing is collected and nothing is written to storage.

• Consent-aware. An explicit choice the person makes in your UI outranks the browser default in both directions:

  import { setConsent, useConsent } from '@hanzogui/telemetry'
  
  const choice = useConsent() // 'granted' | 'denied' | undefined
  setConsent('denied') // takes effect immediately, everywhere
  setConsent('unset') // forget it; DNT/GPC applies again

  Revocation is prospective: collection stops at once. Events already buffered under a live consent may complete their in-flight flush.

• Input values are withheld from capture by default. data-hz-private on any element excludes its whole subtree.

Anywhere else

Non-React code does not need the provider — the ambient client builds itself from the environment on first use, and the provider registers its own client into the same slot, so there is one instance and one stream either way.

import { track, identify, captureError, EVENTS } from '@hanzogui/telemetry'

identify(user.id)
track(EVENTS.PLAN_CLICKED, { plan: 'pro' })
try {
  risky()
} catch (err) {
  captureError(err, { properties: { where: 'checkout' } })
}

In components

import { useTelemetry, useTrack } from '@hanzogui/telemetry'

const t = useTelemetry() // total: never null, never throws, SSR-safe
const track = useTrack() // just the recorder

Configuration (all optional)

Environment, read from process.env (Next), import.meta.env (Vite/Expo), or a window.__HANZO_TELEMETRY__ object for pages with no build step:

| Variable | Default | Meaning | | -------------------------------------------------------------------------------------- | -------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | NEXT_PUBLIC_PUBLISHABLE_KEY / VITE_PUBLISHABLE_KEY / EXPO_PUBLIC_PUBLISHABLE_KEY | — | Publishable pk-… key — the one name, the one KMS carries at deploy/PUBLISHABLE_KEY and the one @hanzo/event reads. Write-only and safe in a bundle. Without it a beacon is unattributed and the edge refuses it. (The older …_HANZO_INGEST_KEY spelling is still read, second, and is being retired.) | | NEXT_PUBLIC_HANZO_API_URL / VITE_HANZO_API_URL | https://api.hanzo.ai | The one ingest host. | | NEXT_PUBLIC_HANZO_PRODUCT / VITE_HANZO_PRODUCT | resolved from the runtime, then the hostname | Emitting surface. A Tauri window reports as desktop — it serves one bundle from three origins (tauri://localhost, http://tauri.localhost, the dev server), so the URL is the one thing that cannot name it. | | NEXT_PUBLIC_HANZO_TELEMETRY / VITE_HANZO_TELEMETRY | on | 0/false/off is a build-time kill switch. |

Props, when you want them:

<TelemetryProvider
  path={usePathname()} // drive pageviews from your router
  product="console" // override the inferred surface
  host="" // same-origin, cookie-auth apps
  getToken={() => token} // bearer-auth apps
  replay={false} // no interaction capture
  errors={false} // no error capture
  pageviews={false} // no pageviews
  consent="granted" // your own consent gate decided
  enabled={false} // hard kill switch, wins over everything
  fallback={(err, reset) => <Crash error={err} onReset={reset} />}
/>

With no fallback, a render error is reported and then re-thrown so your own error UI still runs. Observing must not change behavior.

Guarantees

• SSR-safe. Importing does nothing; rendering on the server does nothing.
• Native mounts, and stays silent for now. GuiProvider wires telemetry identically on React Native, but a DOM is still the precondition for collecting: @hanzo/event's init() reads window.location.search and document.referrer behind a typeof window check, and React Native defines a window with neither. Emitting on native needs that check to require a document — an @hanzo/event fix, not a gui one. Until then native is wired and inert rather than crashing.
• Fail-soft. Every public method swallows its own errors, network loss is ignored, and a failed capture-engine chunk simply means no capture.
• Tree-shakable. sideEffects: false, ESM, one export per concern.
• No CDN. Nothing is loaded from a third-party origin, ever.

Composition

@hanzo/event      the ONE client — batching, attribution, the wire, the endpoint
@hanzo/observe    the capture engine — semantics, redaction, playback stream
@hanzogui/telemetry  ← this: the zero-config policy that wires them together
@hanzo/ui/telemetry   re-export, so the component layer needs no new dependency

Mechanism lives below, policy lives here, and there is exactly one of each.