# Samples

This directory contains sample apps that use AutoGen Core API.
See [core user guide](../docs/src/user-guide/core-user-guide/) for notebook examples.

See [Running the examples](#running-the-examples) for instructions on how to run the examples.

- [`chess_game.py`](chess_game.py): an example with two chess player agents that executes its own tools to demonstrate tool use and reflection on tool use.
- [`slow_human_in_loop.py`](slow_human_in_loop.py): an example showing human-in-the-loop which waits for human input before making the tool call.

## Running the examples

### Prerequisites

First, you need a shell with AutoGen core and required dependencies installed.

### Using Azure OpenAI API

For Azure OpenAI API, you need to set the following environment variables:

```bash
export OPENAI_API_TYPE=azure
export AZURE_OPENAI_API_ENDPOINT=your_azure_openai_endpoint
export AZURE_OPENAI_API_VERSION=your_azure_openai_api_version
```

By default, we use Azure Active Directory (AAD) for authentication.
You need to run `az login` first to authenticate with Azure.
You can also
use API key authentication by setting the following environment variables:

```bash
export AZURE_OPENAI_API_KEY=your_azure_openai_api_key
```

This requires azure-identity installation:

```bash
pip install azure-identity
```

### Using OpenAI API

For OpenAI API, you need to set the following environment variables.

```bash
export OPENAI_API_TYPE=openai
export OPENAI_API_KEY=your_openai_api_key
```