# Build a prvt integration with `@prvt/integration-sdk`

Use this prompt when asking a coding agent to build or update a server-side prvt integration.

## Goal

Build a visible Node.js integration that joins one self-hosted prvt room through
`@prvt/integration-sdk` and the official LiveKit Node runtime.

## Requirements

- Use Node.js 18 or newer.
- Install `@prvt/integration-sdk` and `@livekit/rtc-node`.
- Run the integration on a trusted server, never in browser code.
- The official running prvt instance is [https://prvt.su](https://prvt.su). Use it as
  `PRVT_BASE_URL` when the user wants to connect to the hosted service; use the
  user's own HTTPS deployment origin for a self-hosted instance.
- Read the installed package README and exported TypeScript types before coding.
- Accept the prvt deployment origin and integration key through runtime secret
  configuration. Never hard-code, log, persist, or place the key in a URL.
- Assume the integration key has already been provisioned through prvt Room
  tools or the owner API. The SDK runs an integration; it does not create rooms,
  owners, or integration keys.
- Treat integration participants as authenticated bots. `showAsParticipant`
  controls only whether prvt's web UI renders their participant card; do not
  try to conceal their LiveKit identity or bypass any permissions returned by
  the server.

## Install

```bash
npm install @prvt/integration-sdk @livekit/rtc-node
```

## Starting point

```ts
import { AudioStream, RoomEvent, VideoStream } from "@livekit/rtc-node";
import {
  PrvtApiError,
  PrvtConnectionError,
  PrvtMediaSubscriptionUnavailableError,
  PrvtNetworkError,
  PrvtProtocolError,
  createPrvtIntegration,
} from "@prvt/integration-sdk";

const baseUrl = process.env.PRVT_BASE_URL;
const integrationKey = process.env.PRVT_INTEGRATION_KEY;

if (!baseUrl) throw new Error("PRVT_BASE_URL is required");
if (!integrationKey) throw new Error("PRVT_INTEGRATION_KEY is required");

const integration = createPrvtIntegration({
  baseUrl,
  integrationKey,
  displayName: "My integration",
});

let session: Awaited<ReturnType<typeof integration.connect>> | undefined;
let stopAudio: (() => void) | undefined;
let stopVideo: (() => void) | undefined;

try {
  session = await integration.connect({
    roomOptions: { autoSubscribe: true },
  });

  session.room.on(RoomEvent.ParticipantConnected, (participant) => {
    console.log(`${participant.name ?? participant.identity} joined`);
  });

  stopAudio = session.onAudioTrack(async (track, publication, participant) => {
    const stream = new AudioStream(track, { sampleRate: 48_000, numChannels: 1 });
    const reader = stream.getReader();
    try {
      for (;;) {
        const { done, value } = await reader.read();
        if (done) break;
        await handleAudio(participant.identity, publication.source, value.data);
      }
    } finally {
      await reader.cancel().catch(() => undefined);
    }
  });

  stopVideo = session.onVideoTrack(async (track, publication, participant) => {
    const stream = new VideoStream(track);
    const reader = stream.getReader();
    try {
      for (;;) {
        const { done, value } = await reader.read();
        if (done) break;
        await handleVideo(participant.identity, publication.source, value.frame);
      }
    } finally {
      await reader.cancel().catch(() => undefined);
    }
  });

  await session.updateProfile({ statusMessage: "Ready" });

  if (session.permissions.publishData) {
    await session.sendMessage("Integration connected");
    await session.sendReaction("👋");
  }
} catch (error) {
  if (error instanceof PrvtApiError) {
    console.error("prvt API error", error.code, error.status);
  } else if (error instanceof PrvtNetworkError) {
    console.error("The prvt API is unreachable");
  } else if (error instanceof PrvtProtocolError) {
    console.error("The token response did not match the SDK contract");
  } else if (error instanceof PrvtConnectionError) {
    console.error("The LiveKit connection failed");
  } else if (error instanceof PrvtMediaSubscriptionUnavailableError) {
    console.error("The integration does not have permission to receive room media");
  } else {
    throw error;
  }
  process.exitCode = 1;
}

const shutdown = async () => {
  stopAudio?.();
  stopVideo?.();
  await session?.disconnect();
  process.exit(0);
};

process.once("SIGINT", shutdown);
process.once("SIGTERM", shutdown);
```

## SDK behavior to preserve

- `connect()` exchanges the long-lived integration key for a participant JWT
  valid for five minutes, then connects a LiveKit `Room`.
- Use `exchangeToken()` instead when the application needs to construct or
  configure its own LiveKit room instance.
- Use `session.room` for ordinary LiveKit participant, track, text-stream, and
  data APIs.
- Check `session.permissions` before acting. `sendMessage()`, `pinMessage()`,
  `unpinMessage()`, and `sendReaction()` require `publishData`.
- `publishMicrophone` permits only microphone-source audio tracks.
  `subscribeMedia` may include both audio and video.
- `publishTranscription` permits `createTranscriptionStream()` to publish
  bounded participant-attached subtitle segments on `prvt.transcription`.
  It does not enable chat helpers; handle partial/final segments by reusing the
  same segment ID, and keep target identities and track IDs from trusted room
  state.
- `showAsParticipant` controls web participant-card presentation only. It does
  not change room membership, integration counts, or realtime capabilities.
- Set `roomOptions.autoSubscribe: true` when connecting to receive media.
  Register `onAudioTrack()` and/or `onVideoTrack()` on the returned session;
  each callback receives the subscribed remote track, its publication, and its
  participant, including tracks already subscribed while `connect()` resolved.
  Use the official `AudioStream` and `VideoStream` classes to consume frames,
  and cancel stream readers when processing stops. These listeners throw
  `PrvtMediaSubscriptionUnavailableError` when `subscribeMedia` is not granted.
- Profile pictures must be bounded inline PNG, JPEG, or WebP data URLs. Profile
  state is live-only, so reapply it after reconnecting.
- `updateProfile` accepts an optional `websiteUrl`: HTTPS without embedded
  credentials. It links the bot's name in chat and on its media card. Omit the
  field to preserve it or pass `null` to clear it, and reapply after reconnecting.
  Never include integration keys, room credentials, or participant tokens.
- Use `parseChatMessageLanguage(reader.info.attributes)` when localized replies
  should follow a human sender's UI language. `PRVT_CHAT_LANGUAGE_ATTRIBUTE`
  names the `prvt.chat.language` text-stream attribute; supported values are
  canonical `en` and `ru`. Missing or unknown values return `null`, requiring
  your integration's fallback. This metadata does not detect the body's
  language or translate messages automatically.
- Chat, pins, and reactions are realtime-only. Do not imply persistence,
  replay, recording, or late-join history.
- Transcription streams are realtime-only and ephemeral. They carry a target
  participant identity, track ID, segment ID, language, and partial/final state;
  the browser accepts them only from integrations with signed
  `publishTranscription` permission and drops malformed or stale segments.
- `sendMessage()` accepts `format: "markdown"` and a bounded `keyboard` with
  callback, HTTPS link, or path-only HTTPS web-app buttons. Callback buttons may include an optional
  toast value, which is returned on the matching `onChatCallback()` event.
  Register `onChatCallback()` to handle direct button events; use
  `acknowledgeChatCallback()` for a targeted accepted or rejected
  acknowledgement. The callback sender identity is derived from LiveKit, not
  the packet body. Make handlers idempotent and unsubscribe them during
  shutdown because delivery is realtime and best-effort.
- Web-app buttons open an external provider URL in a prvt room modal. Any
  connected integration may use a path-only HTTPS URL. Register
  `onWebAppRequest()` to handle app actions and use
  `respondToWebAppRequest()` for a targeted result. Validate the payload and
  use `senderIdentity` from the SDK; never trust a browser-supplied identity.
- `editMessage()` can replace a message sent by the current SDK session for up
  to 60 minutes, including its format and keyboard. Edits are ephemeral and
  cannot modify messages sent by an earlier SDK connection.
- A new connection using the same stable integration identity replaces the
  previous connection. Handle participant removal and disconnect cleanly.
- Fetch a fresh participant JWT for a full reconnect. Do not persist a JWT as a
  replacement for the integration key.
- `connect()` does not retry automatically. For a long-running process, wait
  for `RoomEvent.Disconnected` and call `connect()` again with a fresh token;
  reapply live-only profile state after reconnecting. Treat
  `PrvtApiError.code === "INTEGRATION_PAUSED"` as an expected operator pause
  and retry with bounded backoff so a moderator's resume can take effect.
- When an approved provider receives lifecycle webhooks, capture the exact raw
  request bytes and verify them with `verifyPrvtWebhook()` before parsing or
  acting. Keep the independent webhook secret in server-side secret storage,
  atomically deduplicate event IDs for at least 24 hours, and acknowledge a
  verified duplicate without repeating side effects.
- For an integration-owned V2 webhook, call
  `generatePrvtWebhookCredentials()` and place the raw secret in encrypted
  server storage before registration, because the endpoint is challenged
  during `registerWebhookSubscription()`. Treat that generation result as the
  only plaintext reveal. The registration or rotation JSON body is the only
  API call that carries the webhook secret; normal integration calls,
  deliveries, GET/DELETE responses, and logs must never contain it.
- Verify V2 deliveries from exact raw bytes with `verifyPrvtWebhookV2()` and a
  key-ID resolver backed by encrypted storage. Return
  `createPrvtWebhookV2ChallengeResponse()` for a verified challenge. After
  activation, bind verification to the stored integration and subscription
  IDs, atomically deduplicate event IDs for at least 24 hours, and retain an old
  key during the bounded rotation overlap.
- Lifecycle webhooks are unordered, at-least-once wake-up hints. Coalesce them
  into reconciliation work and use a fresh token exchange as the authority for
  active, paused, revoked, closed-room, and permission state. Keep bounded
  reconnect polling as the fallback for delayed or missed delivery.
- Respect `PrvtApiError.retryAfterSeconds` for `RATE_LIMITED`. Use bounded
  backoff for temporary network, storage, LiveKit, or paused-state failures.
  Revoked, closed, unauthorized, and forbidden errors require operator action.

## Definition of done

- The integration connects using runtime secrets and does not expose them in
  source, logs, URLs, errors, or browser storage.
- It performs only actions allowed by the returned permissions.
- It handles startup failure, process shutdown, removal, and reconnect without
  leaving duplicate sessions behind.
- If it receives lifecycle webhooks, tests cover raw-body signatures, stale and
  replayed delivery, exact event shapes, and idempotent reconciliation.
- Tests cover its permission checks, error handling, and any messages or data
  packets it publishes.