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The TypeScript SDK provides real-time streaming capabilities for live data feeds.

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Basic Streaming

Connect to real-time sampled posts: 
import { Client } from '@xdevplatform/xdk';

const client: Client = new Client({ bearerToken: 'your-bearer-token' });

// 1% sampled public posts
const stream = await client.stream.postsSample({
  tweetFields: ['id','text','created_at'],
  expansions: ['author_id'],
  userFields: ['id','username','name']
});

// Listen to events
stream.on('data', (event) => {
  // event is the parsed JSON line (data/includes/matching_rules)
  console.log('New data:', event);
});

stream.on('error', (e) => console.error('Stream error:', e));
stream.on('close', () => console.log('Stream closed'));

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Async Iteration

Consume the stream with async iteration: 
const stream = await client.stream.postsSample();
for await (const event of stream) {
  // Each event is a parsed JSON line (data/includes/matching_rules)
  console.log(event);
}

​
Stream Management

Control lifecycle from the event-driven stream: 
// Close the stream
stream.close();

// Auto-reconnect (if enabled by your wrapper)
// The default EventDrivenStream exposes basic reconnect hooks

​
Error Handling

Handle streaming errors and reconnections: 
stream.on('error', (event) => {
  const err = event.error || event;
  console.error('Stream error:', err);
});

stream.on('keepAlive', () => {
  // heartbeat event
});
For detailed code examples using the Javascript/TypeScript XDK, check out our code samples GitHub repo.