> ## Documentation Index
> Fetch the complete documentation index at: https://openrouter-d02e98a0-mintlify-5b6e02fd.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# ChatStreamingResponse - Go SDK

> ChatStreamingResponse type definition

<Warning>
  The Go SDK and docs are currently in beta.
  Report issues on [GitHub](https://github.com/OpenRouterTeam/go-sdk/issues).
</Warning>

## Fields

| Field  | Type                                                                               | Required             | Description                     | Example                                                                                                                                                                                                                                                            |
| ------ | ---------------------------------------------------------------------------------- | -------------------- | ------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| `Data` | [components.ChatStreamChunk](/client-sdks/go/api-reference/models/chatstreamchunk) | :heavy\_check\_mark: | Streaming chat completion chunk | `{"choices": [{"delta": {"content": "Hello","role": "assistant"}`,<br />"finish\_reason": null,<br />"index": `0<br/>`}<br />],<br />"created": 1677652288,<br />"id": "chatcmpl-123",<br />"model": "openai/gpt-4",<br />"object": "chat.completion.chunk"<br />} |