Realtime

Subscribe to Collection

// Subscribe to all changes in a collection
const unsubscribe = client.collection('messages').onSnapshot((data) => {
  console.log('Change event:', data);
  // data.type: 'create', 'update', 'delete'
  // data.data: the document
});

// Later: stop listening
unsubscribe();

Transport Modes

Configure how real-time works:

const client = new BaasClient({
  apiBase: 'https://api.novabaas.com',
  projectId: 'your-project',
  transport: 'auto' // 'auto', 'websocket', 'rest'
});

// 'auto' (default): Uses WebSocket, falls back to REST polling
// 'websocket': WebSocket only
// 'rest': REST with polling for real-time

Auto-Fallback

When WebSocket fails, the SDK automatically falls back to REST polling:

• 3 reconnection attempts with exponential backoff
• Falls back to polling every 5 seconds
• Transparent to your application code