Update Modal App: (#1755)
* Update Modal App: Updated Modal App to include: 1. Latest Modal API usage 2. Ability to launch different Pipecat pipelines, much like the simple chatbot example 3. Ability to choose which pipeline is launched via the /connect endpoint 4. Added a pipeline option for connecting to a self-hosted LLM on Modal 5. Improved READMEs 6. Added a web client for interacting with the Modal deployment tmp * Update README
This commit is contained in:
Mattie Ruth
381
examples/deployment/modal-example/client/javascript/src/app.js
Normal file
381
examples/deployment/modal-example/client/javascript/src/app.js
Normal file
@@ -0,0 +1,381 @@
|
||||
/**
|
||||
* Copyright (c) 2024–2025, Daily
|
||||
*
|
||||
* SPDX-License-Identifier: BSD 2-Clause License
|
||||
*/
|
||||
|
||||
/**
|
||||
* RTVI Client Implementation
|
||||
*
|
||||
* This client connects to an RTVI-compatible bot server using WebRTC (via Daily).
|
||||
* It handles audio/video streaming and manages the connection lifecycle.
|
||||
*
|
||||
* Requirements:
|
||||
* - A running RTVI bot server (defaults to http://localhost:7860)
|
||||
* - The server must implement the /connect endpoint that returns Daily.co room credentials
|
||||
* - Browser with WebRTC support
|
||||
*/
|
||||
|
||||
import { RTVIClient, RTVIEvent } from '@pipecat-ai/client-js';
|
||||
import { DailyTransport } from '@pipecat-ai/daily-transport';
|
||||
|
||||
/**
|
||||
* ChatbotClient handles the connection and media management for a real-time
|
||||
* voice and video interaction with an AI bot.
|
||||
*/
|
||||
class ChatbotClient {
|
||||
constructor() {
|
||||
// Initialize client state
|
||||
this.rtviClient = null;
|
||||
this.setupDOMElements();
|
||||
this.initializeClientAndTransport();
|
||||
this.setupEventListeners();
|
||||
}
|
||||
|
||||
/**
|
||||
* Set up references to DOM elements and create necessary media elements
|
||||
*/
|
||||
setupDOMElements() {
|
||||
// Get references to UI control elements
|
||||
this.connectBtn = document.getElementById('connect-btn');
|
||||
this.disconnectBtn = document.getElementById('disconnect-btn');
|
||||
this.statusSpan = document.getElementById('connection-status');
|
||||
this.debugLog = document.getElementById('debug-log');
|
||||
this.botVideoContainer = document.getElementById('bot-video-container');
|
||||
this.deviceSelector = document.getElementById('device-selector');
|
||||
|
||||
// Create an audio element for bot's voice output
|
||||
this.botAudio = document.createElement('audio');
|
||||
this.botAudio.autoplay = true;
|
||||
this.botAudio.playsInline = true;
|
||||
document.body.appendChild(this.botAudio);
|
||||
}
|
||||
|
||||
/**
|
||||
* Set up event listeners for connect/disconnect buttons
|
||||
*/
|
||||
setupEventListeners() {
|
||||
this.connectBtn.addEventListener('click', () => this.connect());
|
||||
this.disconnectBtn.addEventListener('click', () => this.disconnect());
|
||||
|
||||
// Populate device selector
|
||||
this.rtviClient.getAllMics().then((mics) => {
|
||||
console.log('Available mics:', mics);
|
||||
mics.forEach((device) => {
|
||||
const option = document.createElement('option');
|
||||
option.value = device.deviceId;
|
||||
option.textContent = device.label || `Microphone ${device.deviceId}`;
|
||||
this.deviceSelector.appendChild(option);
|
||||
});
|
||||
});
|
||||
this.deviceSelector.addEventListener('change', (event) => {
|
||||
const selectedDeviceId = event.target.value;
|
||||
console.log('Selected device ID:', selectedDeviceId);
|
||||
this.rtviClient.updateMic(selectedDeviceId);
|
||||
});
|
||||
|
||||
// Handle mic mute/unmute toggle
|
||||
const micToggleBtn = document.getElementById('mic-toggle-btn');
|
||||
|
||||
micToggleBtn.addEventListener('click', () => {
|
||||
let micEnabled = this.rtviClient.isMicEnabled;
|
||||
micToggleBtn.textContent = micEnabled ? 'Unmute Mic' : 'Mute Mic';
|
||||
this.rtviClient.enableMic(!micEnabled);
|
||||
// Add logic to mute/unmute the mic
|
||||
if (micEnabled) {
|
||||
console.log('Mic muted');
|
||||
// Add code to mute the mic
|
||||
} else {
|
||||
console.log('Mic unmuted');
|
||||
// Add code to unmute the mic
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* Set up the RTVI client and Daily transport
|
||||
*/
|
||||
async initializeClientAndTransport() {
|
||||
// Initialize the RTVI client with a DailyTransport and our configuration
|
||||
this.rtviClient = new RTVIClient({
|
||||
transport: new DailyTransport(),
|
||||
params: {
|
||||
// REPLACE WITH YOUR MODAL URL ENDPOINT
|
||||
baseUrl:
|
||||
'https://<Modal workspace>--pipecat-modal-bot-launcher.modal.run',
|
||||
endpoints: {
|
||||
connect: '/connect',
|
||||
},
|
||||
requestData: {
|
||||
bot_name: 'openai',
|
||||
},
|
||||
},
|
||||
enableMic: true, // Enable microphone for user input
|
||||
enableCam: false,
|
||||
callbacks: {
|
||||
// Handle connection state changes
|
||||
onConnected: () => {
|
||||
this.updateStatus('Connected');
|
||||
this.connectBtn.disabled = true;
|
||||
this.disconnectBtn.disabled = false;
|
||||
this.log('Client connected');
|
||||
},
|
||||
onDisconnected: () => {
|
||||
this.updateStatus('Disconnected');
|
||||
this.connectBtn.disabled = false;
|
||||
this.disconnectBtn.disabled = true;
|
||||
this.log('Client disconnected');
|
||||
},
|
||||
// Handle transport state changes
|
||||
onTransportStateChanged: (state) => {
|
||||
this.updateStatus(`Transport: ${state}`);
|
||||
this.log(`Transport state changed: ${state}`);
|
||||
if (state === 'connecting') {
|
||||
window.startTime = Date.now();
|
||||
}
|
||||
if (state === 'ready') {
|
||||
this.setupMediaTracks();
|
||||
console.warn('TIME TO BOT READY:', Date.now() - window.startTime);
|
||||
}
|
||||
},
|
||||
// Handle bot connection events
|
||||
onBotConnected: (participant) => {
|
||||
this.log(`Bot connected: ${JSON.stringify(participant)}`);
|
||||
},
|
||||
onBotDisconnected: (participant) => {
|
||||
this.log(`Bot disconnected: ${JSON.stringify(participant)}`);
|
||||
},
|
||||
onBotReady: (data) => {
|
||||
this.log(`Bot ready: ${JSON.stringify(data)}`);
|
||||
this.setupMediaTracks();
|
||||
},
|
||||
// Transcript events
|
||||
onUserTranscript: (data) => {
|
||||
// Only log final transcripts
|
||||
if (data.final) {
|
||||
this.log(`User: ${data.text}`);
|
||||
}
|
||||
},
|
||||
onBotTranscript: (data) => {
|
||||
this.log(`Bot: ${data.text}`);
|
||||
},
|
||||
// Error handling
|
||||
onMessageError: (error) => {
|
||||
console.log('Message error:', error);
|
||||
},
|
||||
onMicUpdated: (data) => {
|
||||
console.log('Mic updated:', data);
|
||||
this.deviceSelector.value = data.deviceId;
|
||||
},
|
||||
onError: (error) => {
|
||||
console.log('Error:', JSON.stringify(error));
|
||||
},
|
||||
},
|
||||
});
|
||||
|
||||
// Set up listeners for media track events
|
||||
this.setupTrackListeners();
|
||||
|
||||
await this.rtviClient.initDevices();
|
||||
window.client = this.rtviClient;
|
||||
}
|
||||
|
||||
/**
|
||||
* Add a timestamped message to the debug log
|
||||
*/
|
||||
log(message) {
|
||||
const entry = document.createElement('div');
|
||||
entry.textContent = `${new Date().toISOString()} - ${message}`;
|
||||
|
||||
// Add styling based on message type
|
||||
if (message.startsWith('User: ')) {
|
||||
entry.style.color = '#2196F3'; // blue for user
|
||||
} else if (message.startsWith('Bot: ')) {
|
||||
entry.style.color = '#4CAF50'; // green for bot
|
||||
}
|
||||
|
||||
this.debugLog.appendChild(entry);
|
||||
this.debugLog.scrollTop = this.debugLog.scrollHeight;
|
||||
console.log(message);
|
||||
}
|
||||
|
||||
/**
|
||||
* Update the connection status display
|
||||
*/
|
||||
updateStatus(status) {
|
||||
this.statusSpan.textContent = status;
|
||||
this.log(`Status: ${status}`);
|
||||
}
|
||||
|
||||
/**
|
||||
* Check for available media tracks and set them up if present
|
||||
* This is called when the bot is ready or when the transport state changes to ready
|
||||
*/
|
||||
setupMediaTracks() {
|
||||
if (!this.rtviClient) return;
|
||||
|
||||
// Get current tracks from the client
|
||||
const tracks = this.rtviClient.tracks();
|
||||
|
||||
// Set up any available bot tracks
|
||||
if (tracks.bot?.audio) {
|
||||
this.setupAudioTrack(tracks.bot.audio);
|
||||
}
|
||||
if (tracks.bot?.video) {
|
||||
this.setupVideoTrack(tracks.bot.video);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Set up listeners for track events (start/stop)
|
||||
* This handles new tracks being added during the session
|
||||
*/
|
||||
setupTrackListeners() {
|
||||
if (!this.rtviClient) return;
|
||||
|
||||
// Listen for new tracks starting
|
||||
this.rtviClient.on(RTVIEvent.TrackStarted, (track, participant) => {
|
||||
// Only handle non-local (bot) tracks
|
||||
if (!participant?.local) {
|
||||
if (track.kind === 'audio') {
|
||||
this.setupAudioTrack(track);
|
||||
} else if (track.kind === 'video') {
|
||||
this.setupVideoTrack(track);
|
||||
}
|
||||
this.log(
|
||||
`Track started event: ${track.kind} from ${
|
||||
participant?.name || 'unknown'
|
||||
}`
|
||||
);
|
||||
} else {
|
||||
this.log('Local mic unmuted');
|
||||
}
|
||||
});
|
||||
|
||||
// Listen for tracks stopping
|
||||
this.rtviClient.on(RTVIEvent.TrackStopped, (track, participant) => {
|
||||
if (participant.local) {
|
||||
this.log('Local mic muted');
|
||||
return;
|
||||
}
|
||||
this.log(
|
||||
`Track stopped event: ${track.kind} from ${
|
||||
participant?.name || 'unknown'
|
||||
}`
|
||||
);
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* Set up an audio track for playback
|
||||
* Handles both initial setup and track updates
|
||||
*/
|
||||
setupAudioTrack(track) {
|
||||
this.log('Setting up audio track');
|
||||
// Check if we're already playing this track
|
||||
if (this.botAudio.srcObject) {
|
||||
const oldTrack = this.botAudio.srcObject.getAudioTracks()[0];
|
||||
if (oldTrack?.id === track.id) return;
|
||||
}
|
||||
// Create a new MediaStream with the track and set it as the audio source
|
||||
this.botAudio.srcObject = new MediaStream([track]);
|
||||
}
|
||||
|
||||
/**
|
||||
* Set up a video track for display
|
||||
* Handles both initial setup and track updates
|
||||
*/
|
||||
setupVideoTrack(track) {
|
||||
this.log('Setting up video track');
|
||||
const videoEl = document.createElement('video');
|
||||
videoEl.autoplay = true;
|
||||
videoEl.playsInline = true;
|
||||
videoEl.muted = true;
|
||||
videoEl.style.width = '100%';
|
||||
videoEl.style.height = '100%';
|
||||
videoEl.style.objectFit = 'cover';
|
||||
|
||||
// Check if we're already displaying this track
|
||||
if (this.botVideoContainer.querySelector('video')?.srcObject) {
|
||||
const oldTrack = this.botVideoContainer
|
||||
.querySelector('video')
|
||||
.srcObject.getVideoTracks()[0];
|
||||
if (oldTrack?.id === track.id) return;
|
||||
}
|
||||
|
||||
// Create a new MediaStream with the track and set it as the video source
|
||||
videoEl.srcObject = new MediaStream([track]);
|
||||
this.botVideoContainer.innerHTML = '';
|
||||
this.botVideoContainer.appendChild(videoEl);
|
||||
}
|
||||
|
||||
/**
|
||||
* Initialize and connect to the bot
|
||||
* This sets up the RTVI client, initializes devices, and establishes the connection
|
||||
*/
|
||||
async connect() {
|
||||
try {
|
||||
const botSelector = document.getElementById('bot-selector');
|
||||
const selectedBot = botSelector.value;
|
||||
this.rtviClient.params.requestData.bot_name = selectedBot;
|
||||
|
||||
// Initialize audio/video devices
|
||||
this.log('Initializing devices...');
|
||||
await this.rtviClient.initDevices();
|
||||
|
||||
// Connect to the bot
|
||||
this.log(`Connecting to bot: ${selectedBot}`);
|
||||
await this.rtviClient.connect();
|
||||
|
||||
this.log('Connection complete');
|
||||
} catch (error) {
|
||||
// Handle any errors during connection
|
||||
console.error('Connection error:', error);
|
||||
this.log(`Error connecting: ${JSON.stringify(error.message)}`);
|
||||
this.log(`Error stack: ${error.stack}`);
|
||||
this.updateStatus('Error');
|
||||
|
||||
// Clean up if there's an error
|
||||
if (this.rtviClient) {
|
||||
try {
|
||||
await this.rtviClient.disconnect();
|
||||
} catch (disconnectError) {
|
||||
this.log(`Error during disconnect: ${disconnectError.message}`);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Disconnect from the bot and clean up media resources
|
||||
*/
|
||||
async disconnect() {
|
||||
if (this.rtviClient) {
|
||||
try {
|
||||
// Disconnect the RTVI client
|
||||
await this.rtviClient.disconnect();
|
||||
|
||||
// Clean up audio
|
||||
if (this.botAudio.srcObject) {
|
||||
this.botAudio.srcObject.getTracks().forEach((track) => track.stop());
|
||||
this.botAudio.srcObject = null;
|
||||
}
|
||||
|
||||
// Clean up video
|
||||
if (this.botVideoContainer.querySelector('video')?.srcObject) {
|
||||
const video = this.botVideoContainer.querySelector('video');
|
||||
video.srcObject.getTracks().forEach((track) => track.stop());
|
||||
video.srcObject = null;
|
||||
}
|
||||
this.botVideoContainer.innerHTML = '';
|
||||
} catch (error) {
|
||||
this.log(`Error disconnecting: ${error.message}`);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Initialize the client when the page loads
|
||||
window.addEventListener('DOMContentLoaded', () => {
|
||||
new ChatbotClient();
|
||||
});
|
||||
Reference in New Issue
Block a user