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
2025-05-12 13:45:43 -04:00
committed by GitHub
parent b33a60f3a5
commit 64b2a75a94
48 changed files with 2251 additions and 196 deletions

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node_modules

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# JavaScript Implementation
Basic implementation using the [Pipecat JavaScript SDK](https://docs.pipecat.ai/client/js/introduction).
## Setup
1. Deploy the Modal server. See the main [README](../../README).
2. Navigate to the `client/javascript` directory:
```bash
cd client/javascript
```
3. Modify the baseUrl in src/app.js to point to your deployed Modal endpoint
4. Install dependencies:
```bash
npm install
```
5. Run the client app:
```
npm run dev
```
6. Visit http://localhost:5173 in your browser.

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>AI Chatbot</title>
</head>
<body>
<div class="container">
<div class="status-bar">
<div class="status">
Status: <span id="connection-status">Disconnected</span>
</div>
<div class="controls">
<select id="bot-selector">
<option value="openai">OpenAI</option>
<option value="gemini">Gemini</option>
<option value="vllm">Llama</option>
</select>
<button id="connect-btn">Connect</button>
<button id="disconnect-btn" disabled>Disconnect</button>
</div>
</div>
<div class="main-content">
<div class="bot-container">
<div id="bot-video-container"></div>
<audio id="bot-audio" autoplay></audio>
</div>
</div>
<div class="device-bar">
<div class="device-controls">
<select id="device-selector"></select>
<button id="mic-toggle-btn">Mute Mic</button>
</div>
</div>
<div class="debug-panel">
<h3>Debug Info</h3>
<div id="debug-log"></div>
</div>
</div>
<script type="module" src="/src/app.js"></script>
<link rel="stylesheet" href="/src/style.css" />
</body>
</html>

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{
"name": "client",
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"main": "index.js",
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"build": "vite build",
"preview": "vite preview"
},
"keywords": [],
"author": "",
"license": "ISC",
"description": "",
"devDependencies": {
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},
"dependencies": {
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}

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/**
* Copyright (c) 20242025, 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();
});

View File

@@ -0,0 +1,135 @@
body {
margin: 0;
padding: 20px;
font-family: Arial, sans-serif;
background-color: #f0f0f0;
}
.container {
max-width: 1200px;
margin: 0 auto;
}
.status-bar,
.device-bar {
display: flex;
justify-content: space-between;
align-items: center;
padding: 10px;
background-color: #fff;
border-radius: 8px;
margin-bottom: 20px;
}
.controls,
.device-controls {
display: flex;
align-items: center;
gap: 10px; /* Adds spacing between elements */
}
.device-controls {
margin-left: auto;
}
.controls button,
.device-controls button {
padding: 8px 16px;
margin-left: 10px;
border: none;
border-radius: 4px;
cursor: pointer;
}
#bot-selector,
#device-selector {
padding: 8px 16px;
padding-right: 40px;
border: none;
border-radius: 4px;
background-color: #6c757d; /* Gray background */
color: white; /* White text */
cursor: pointer;
appearance: none; /* Removes default browser styling for dropdowns */
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E"); /* Custom arrow */
background-repeat: no-repeat;
background-position: right 8px center; /* Position the arrow */
}
#bot-selector:focus,
#device-selector:focus {
outline: none;
box-shadow: 0 0 4px rgba(0, 0, 0, 0.3); /* Add a subtle focus effect */
}
#connect-btn {
background-color: #4caf50;
color: white;
}
#disconnect-btn {
background-color: #f44336;
color: white;
}
#mic-toggle-btn {
}
button:disabled {
opacity: 0.5;
cursor: not-allowed;
}
.main-content {
background-color: #fff;
border-radius: 8px;
padding: 20px;
margin-bottom: 20px;
}
.bot-container {
display: flex;
flex-direction: column;
align-items: center;
}
#bot-video-container {
width: 640px;
height: 360px;
background-color: #e0e0e0;
border-radius: 8px;
margin: 20px auto;
overflow: hidden;
display: flex;
align-items: center;
justify-content: center;
}
#bot-video-container video {
width: 100%;
height: 100%;
object-fit: cover;
}
.debug-panel {
background-color: #fff;
border-radius: 8px;
padding: 20px;
}
.debug-panel h3 {
margin: 0 0 10px 0;
font-size: 16px;
font-weight: bold;
}
#debug-log {
height: 200px;
overflow-y: auto;
background-color: #f8f8f8;
padding: 10px;
border-radius: 4px;
font-family: monospace;
font-size: 12px;
line-height: 1.4;
}