# ArgillaCallbackHandler

> **Class** in `langchain_community`

📖 [View in docs](https://reference.langchain.com/python/langchain-community/callbacks/argilla_callback/ArgillaCallbackHandler)

Callback Handler that logs into Argilla.

## Signature

```python
ArgillaCallbackHandler(
    self,
    dataset_name: str,
    workspace_name: Optional[str] = None,
    api_url: Optional[str] = None,
    api_key: Optional[str] = None,
)
```

## Parameters

| Name | Type | Required | Description |
|------|------|----------|-------------|
| `dataset_name` | `str` | Yes | name of the `FeedbackDataset` in Argilla. Note that it must exist in advance. If you need help on how to create a `FeedbackDataset` in Argilla, please visit https://docs.argilla.io/en/latest/tutorials_and_integrations/integrations/use_argilla_callback_in_langchain.html. |
| `workspace_name` | `Optional[str]` | No | name of the workspace in Argilla where the specified `FeedbackDataset` lives in. Defaults to `None`, which means that the default workspace will be used. (default: `None`) |
| `api_url` | `Optional[str]` | No | URL of the Argilla Server that we want to use, and where the `FeedbackDataset` lives in. Defaults to `None`, which means that either `ARGILLA_API_URL` environment variable or the default will be used. (default: `None`) |
| `api_key` | `Optional[str]` | No | API Key to connect to the Argilla Server. Defaults to `None`, which means that either `ARGILLA_API_KEY` environment variable or the default will be used. (default: `None`) |

## Extends

- `BaseCallbackHandler`

## Constructors

```python
__init__(
    self,
    dataset_name: str,
    workspace_name: Optional[str] = None,
    api_url: Optional[str] = None,
    api_key: Optional[str] = None,
) -> None
```

| Name | Type |
|------|------|
| `dataset_name` | `str` |
| `workspace_name` | `Optional[str]` |
| `api_url` | `Optional[str]` |
| `api_key` | `Optional[str]` |


## Properties

- `REPO_URL`
- `ISSUES_URL`
- `BLOG_URL`
- `DEFAULT_API_URL`
- `ARGILLA_VERSION`
- `DEFAULT_API_KEY`
- `dataset_name`
- `workspace_name`
- `dataset`
- `prompts`

## Methods

- [`on_llm_start()`](https://reference.langchain.com/python/langchain-community/callbacks/argilla_callback/ArgillaCallbackHandler/on_llm_start)
- [`on_llm_new_token()`](https://reference.langchain.com/python/langchain-community/callbacks/argilla_callback/ArgillaCallbackHandler/on_llm_new_token)
- [`on_llm_end()`](https://reference.langchain.com/python/langchain-community/callbacks/argilla_callback/ArgillaCallbackHandler/on_llm_end)
- [`on_llm_error()`](https://reference.langchain.com/python/langchain-community/callbacks/argilla_callback/ArgillaCallbackHandler/on_llm_error)
- [`on_chain_start()`](https://reference.langchain.com/python/langchain-community/callbacks/argilla_callback/ArgillaCallbackHandler/on_chain_start)
- [`on_chain_end()`](https://reference.langchain.com/python/langchain-community/callbacks/argilla_callback/ArgillaCallbackHandler/on_chain_end)
- [`on_chain_error()`](https://reference.langchain.com/python/langchain-community/callbacks/argilla_callback/ArgillaCallbackHandler/on_chain_error)
- [`on_tool_start()`](https://reference.langchain.com/python/langchain-community/callbacks/argilla_callback/ArgillaCallbackHandler/on_tool_start)
- [`on_agent_action()`](https://reference.langchain.com/python/langchain-community/callbacks/argilla_callback/ArgillaCallbackHandler/on_agent_action)
- [`on_tool_end()`](https://reference.langchain.com/python/langchain-community/callbacks/argilla_callback/ArgillaCallbackHandler/on_tool_end)
- [`on_tool_error()`](https://reference.langchain.com/python/langchain-community/callbacks/argilla_callback/ArgillaCallbackHandler/on_tool_error)
- [`on_text()`](https://reference.langchain.com/python/langchain-community/callbacks/argilla_callback/ArgillaCallbackHandler/on_text)
- [`on_agent_finish()`](https://reference.langchain.com/python/langchain-community/callbacks/argilla_callback/ArgillaCallbackHandler/on_agent_finish)

---

[View source on GitHub](https://github.com/langchain-ai/langchain-community/blob/4b280287bd55b99b44db2dd849f02d66c89534d5/libs/community/langchain_community/callbacks/argilla_callback.py#L11)