> ## Documentation Index
> Fetch the complete documentation index at: https://docs.x.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Streaming

> Stream real-time X API data in TypeScript using event listeners or async iteration for sampled posts, with automatic reconnection and stream lifecycle control.

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

## Basic Streaming

Connect to real-time sampled posts:

<CodeGroup>
  ```typescript stream.ts theme={null} theme={null}
  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'));
  ```

  ```javascript stream.js theme={null} theme={null}
  import { Client } from '@xdevplatform/xdk';

  const client = new Client({ bearerToken: 'your-bearer-token' });
  const stream = await client.stream.postsSample({ tweetFields: ['id','text'] });

  stream.on('data', (event) => {
    console.log('New data:', event);
  });
  stream.on('error', (e) => console.error('Stream error:', e));
  stream.on('close', () => console.log('Stream closed'));
  ```
</CodeGroup>

## Async Iteration

Consume the stream with async iteration:

<CodeGroup>
  ```typescript async.ts theme={null} theme={null}
  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);
  }
  ```

  ```javascript async.js theme={null} theme={null}
  const stream = await client.stream.postsSample();
  for await (const event of stream) {
    console.log(event);
  }
  ```
</CodeGroup>

## Stream Management

Control lifecycle from the event-driven stream:

```typescript theme={null}
// 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:

```typescript theme={null}
stream.on('error', (event) => {
  const err = event.error || event;
  console.error('Stream error:', err);
});

stream.on('keepAlive', () => {
  // heartbeat event
});
```

<Info>
  For detailed code examples using the Javascript/TypeScript XDK, check out our [code samples GitHub repo](https://github.com/xdevplatform/samples/tree/main/javascript).
</Info>