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[repo] chore: add streaming to CONCEPTS docs #2100

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1 change: 1 addition & 0 deletions getting-started/CONCEPTS/ACTION-PLANNER.md
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- [Planner](./PLANNER.md)
- [Powered by AI](./POWERED-BY-AI.md)
- [Prompts](./PROMPTS.md)
- [Streaming](./STREAMING.md)
- [Turns](./TURNS.md)
- [User Authentication](./USER-AUTH.md)

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1 change: 1 addition & 0 deletions getting-started/CONCEPTS/ACTIONS.md
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- [Planner](./PLANNER.md)
- [Powered by AI](./POWERED-BY-AI.md)
- [Prompts](./PROMPTS.md)
- [Streaming](./STREAMING.md)
- [Turns](./TURNS.md)
- [User Authentication](./USER-AUTH.md)

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1 change: 1 addition & 0 deletions getting-started/CONCEPTS/AI-SYSTEM.md
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- [Planner](./PLANNER.md)
- [Powered by AI](./POWERED-BY-AI.md)
- [Prompts](./PROMPTS.md)
- [Streaming](./STREAMING.md)
- [Turns](./TURNS.md)
- [User Authentication](./USER-AUTH.md)

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1 change: 1 addition & 0 deletions getting-started/CONCEPTS/APPLICATION.md
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- [Planner](./PLANNER.md)
- [Powered by AI](./POWERED-BY-AI.md)
- [Prompts](./PROMPTS.md)
- [Streaming](./STREAMING.md)
- [Turns](./TURNS.md)
- [User Authentication](./USER-AUTH.md)

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1 change: 1 addition & 0 deletions getting-started/CONCEPTS/ASSISTANTS-PLANNER.md
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- [Planner](./PLANNER.md)
- [Powered by AI](./POWERED-BY-AI.md)
- [Prompts](./PROMPTS.md)
- [Streaming](./STREAMING.md)
- [Turns](./TURNS.md)
- [User Authentication](./USER-AUTH.md)
- [**Assistants Planner**](./ASSISTANTS-PLANNER.md)
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1 change: 1 addition & 0 deletions getting-started/CONCEPTS/AUGMENTATIONS.md
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- [Planner](./PLANNER.md)
- [Powered by AI](./POWERED-BY-AI.md)
- [Prompts](./PROMPTS.md)
- [Streaming](./STREAMING.md)
- [Turns](./TURNS.md)
- [User Authentication](./USER-AUTH.md)

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1 change: 1 addition & 0 deletions getting-started/CONCEPTS/DATA-SOURCES.md
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- [Planner](./PLANNER.md)
- [Powered by AI](./POWERED-BY-AI.md)
- [Prompts](./PROMPTS.md)
- [Streaming](./STREAMING.md)
- [Turns](./TURNS.md)
- [User Authentication](./USER-AUTH.md)

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1 change: 1 addition & 0 deletions getting-started/CONCEPTS/FUNCTION-CALLS.md
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- [Planner](./PLANNER.md)
- [Powered by AI](./POWERED-BY-AI.md)
- [Prompts](./PROMPTS.md)
- [Streaming](./STREAMING.md)
- [Turns](./TURNS.md)
- [User Authentication](./USER-AUTH.md)

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1 change: 1 addition & 0 deletions getting-started/CONCEPTS/MODERATOR.md
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- [Planner](./PLANNER.md)
- [Powered by AI](./POWERED-BY-AI.md)
- [Prompts](./PROMPTS.md)
- [Streaming](./STREAMING.md)
- [Turns](./TURNS.md)
- [User Authentication](./USER-AUTH.md)

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1 change: 1 addition & 0 deletions getting-started/CONCEPTS/PLANNER.md
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- [**Planner**](./PLANNER.md)
- [Powered by AI](./POWERED-BY-AI.md)
- [Prompts](./PROMPTS.md)
- [Streaming](./STREAMING.md)
- [Turns](./TURNS.md)
- [User Authentication](./USER-AUTH.md)

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1 change: 1 addition & 0 deletions getting-started/CONCEPTS/POWERED-BY-AI.md
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- [Planner](./PLANNER.md)
- [**Powered by AI**](./POWERED-BY-AI.md)
- [Prompts](./PROMPTS.md)
- [Streaming](./STREAMING.md)
- [Turns](./TURNS.md)
- [User Authentication](./USER-AUTH.md)

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1 change: 1 addition & 0 deletions getting-started/CONCEPTS/PROMPTS.md
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- [Planner](./PLANNER.md)
- [Powered by AI](./POWERED-BY-AI.md)
- [**Prompts**](./PROMPTS.md)
- [Streaming](./STREAMING.md)
- [Turns](./TURNS.md)
- [User Authentication](./USER-AUTH.md)

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1 change: 1 addition & 0 deletions getting-started/CONCEPTS/README.md
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Expand Up @@ -13,6 +13,7 @@ Here you will find short guides on features available in the library.
| [Data Sources](DATA-SOURCES.md) | Describes the usage of data sources in the library. |
| [User Authentication](USER-AUTH.md) | Describes user authentication features out of the box |
| [Powered by AI](./POWERED-BY-AI.md) | Describes the Bot UX features available in this SDK. |
| [Streaming](./STREAMING.md) | Describes the Bot Streaming feature. |

## The AI System Concepts

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165 changes: 165 additions & 0 deletions getting-started/CONCEPTS/STREAMING.md
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# Streaming for Bots
***NOTE: This feature is in the rollout phase and is available only to specific tenants. Our team is actively working on enabling this feature fully on Teams and across all languages in the SDK. Rest assured; we are diligently working to enable this feature for everyone. Updates will be posted on the Discussions page.***

<small>**Navigation**</small>

- [00.OVERVIEW](./README.md)
- [Action Planner](./ACTION-PLANNER.md)
- [Actions](./ACTIONS.md)
- [AI System](./AI-SYSTEM.md)
- [Application class](./APPLICATION.md)
- [Augmentations](./AUGMENTATIONS.md)
- [Data Sources](./DATA-SOURCES.md)
- [Function Calls](./FUNCTION-CALLS.md)
- [Moderator](./MODERATOR.md)
- [Planner](./PLANNER.md)
- [Powered by AI](./POWERED-BY-AI.md)
- [Prompts](./PROMPTS.md)
- [**Streaming**](./STREAMING.md)
- [Turns](./TURNS.md)
- [User Authentication](./USER-AUTH.md)

---

AI-powered bots tend to have slower response times which can disengage users. There are two factors that contribute to a slow response. The first is the multiple preprocessing steps such as RAG or function calls which take time and are often required before the LLM can produce a response. The second is the time the LLM takes to generate a full response.

A common solution is to stream the bot’s response to users while the LLM generates its full response. Through streaming, your bot can offer an experience that feels engaging, responsive, and on-par with leading AI products.

There are two parts to streaming:

- **Informative Updates**: Provide users with insights into what your bot is doing before it has started generating its response.

- **Response Streaming**: Provide users with chunks of the response as they are generated by the LLM. This feels like the bot is actively typing out its message.

## Sample Bots
- [C# Streaming ChefBot](https://github.com/microsoft/teams-ai/tree/main/dotnet/samples/04.ai.g.teamsChefBot-streaming)
- [JS Streaming ChefBot](https://github.com/microsoft/teams-ai/tree/main/js/samples/04.ai-apps/i.teamsChefBot-streaming)

## Streaming Response Class
The `StreamingResponse` class is the helper class for streaming responses to the client. The class is used to send a series of updates to the client in a single response. If you are using your own custom model, you can directly instantiate and manage this class to stream responses.

The expected sequence of calls is:

1. `queueInformativeUpdate()`
2. `queueTextChunk()`, ...,
3. `endStream()`.

Once `endStream()` is called, the stream is considered ended and no further updates can be sent.


## Configuration with Azure Open AI / Open AI

### Current Limitations:
- Streaming is only available in 1:1 chats.
- Only rich text can be streamed.
- Only one informative message can be set. This is reused for each message.
- Examples include:
- “Scanning through documents”
- “Summarizing content”
- “Finding relevant work items”
- The informative message is rendered only at the beginning of each message returned from the LLM.
- Attachments can only be sent in the final streamed chunk.
- Streaming is not available in conjunction with AI SDK's function calls yet.


### Setup Instructions:
You can configure streaming with your bot by following these steps:

- Use the `DefaultAugmentation` class
- Set `stream: true` in the `OpenAIModel` declaration


#### Optional additions:
- Set the informative message in the `ActionPlanner` declaration via the `StartStreamingMessage` config.
- Set attachments in the final chunk via the `EndStreamHandler` in the `ActionPlanner` declaration.

#### C#

```cs
// Create OpenAI Model
builder.Services.AddSingleton<OpenAIModel > (sp => new(
new OpenAIModelOptions(config.OpenAI.ApiKey, "gpt-4o")
{
LogRequests = true,
Stream = true, // Set stream toggle
},
sp.GetService<ILoggerFactory>()
));

ResponseReceivedHandler endStreamHandler = new((object sender, ResponseReceivedEventArgs args) =>
{
StreamingResponse? streamer = args.Streamer;

if (streamer == null)
{
return;
}

AdaptiveCard adaptiveCard = new("1.6")
{
Body = [new AdaptiveTextBlock(streamer.Message) { Wrap = true }]
};

var adaptiveCardAttachment = new Attachment()
{
ContentType = "application/vnd.microsoft.card.adaptive",
Content = adaptiveCard,
};


streamer.Attachments = [adaptiveCardAttachment]; // Set attachments

});


// Create ActionPlanner
ActionPlanner<TurnState> planner = new(
options: new(
model: sp.GetService<OpenAIModel>()!,
prompts: prompts,
defaultPrompt: async (context, state, planner) =>
{
PromptTemplate template = prompts.GetPrompt("Chat");
return await Task.FromResult(template);
}
)
{
LogRepairs = true,
StartStreamingMessage = "Loading stream results...", // Set informative message
EndStreamHandler = endStreamHandler // Set final chunk handler
},
loggerFactory: loggerFactory
);
```

#### JS/TS

```js
const model = new OpenAIModel({
// ...Setup OpenAI or AzureOpenAI
stream: true, // Set stream toggle
});

const endStreamHandler: PromptCompletionModelResponseReceivedEvent = (ctx, memory, response, streamer) => {
// ... Setup attachments
streamer.setAttachments([...cards]); // Set attachments
};

const planner = new ActionPlanner({
model,
prompts,
defaultPrompt: 'default',
startStreamingMessage: 'Loading stream results...', // Set informative message
endStreamHandler: endStreamHandler // Set final chunk handler
});
```

---

## Return to other major section topics:

- [**CONCEPTS**](../CONCEPTS/README.md)
- [MIGRATION](../MIGRATION/README.md)
- [QUICKSTART](../QUICKSTART.md)
- [SAMPLES](../SAMPLES.md)
- [OTHER](../OTHER/README.md)
1 change: 1 addition & 0 deletions getting-started/CONCEPTS/TURNS.md
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- [Planner](./PLANNER.md)
- [Powered by AI](./POWERED-BY-AI.md)
- [Prompts](./PROMPTS.md)
- [Streaming](./STREAMING.md)
- [**Turns**](./TURNS.md)
- [User Authentication](./USER-AUTH.md)

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1 change: 1 addition & 0 deletions getting-started/CONCEPTS/USER-AUTH.md
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- [Planner](./PLANNER.md)
- [Powered by AI](./POWERED-BY-AI.md)
- [Prompts](./PROMPTS.md)
- [Streaming](./STREAMING.md)
- [Turns](./TURNS.md)
- [**User Authentication**](./USER-AUTH.md)

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