ragflow/docs/references/python_api_reference.md

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slug: /python_api_reference
---

# Python API Reference

A complete reference for RAGFlow's Python APIs. Before proceeding, please ensure you [have your RAGFlow API key ready for authentication](../guides/develop/acquire_ragflow_api_key.md).

---

:::tip API GROUPING
Dataset Management
:::

---

## Create dataset

```python
RAGFlow.create_dataset(
    name: str,
    avatar: str = "",
    description: str = "",
    embedding_model: str = "BAAI/bge-zh-v1.5",
    language: str = "English",
    permission: str = "me", 
    chunk_method: str = "naive",
    parser_config: DataSet.ParserConfig = None
) -> DataSet
```

Creates a dataset.

### Parameters

#### name: `str`, *Required*

The unique name of the dataset to create. It must adhere to the following requirements:

- Permitted characters include:
  - English letters (a-z, A-Z)
  - Digits (0-9)
  - "_" (underscore)
- Must begin with an English letter or underscore.
- Maximum 65,535 characters.
- Case-insensitive.

#### avatar: `str`

Base64 encoding of the avatar. Defaults to `""`

#### description: `str`

A brief description of the dataset to create. Defaults to `""`.

#### language: `str`

The language setting of the dataset to create. Available options:

- `"English"` (Default)
- `"Chinese"`

#### permission

Specifies who can access the dataset to create. You can set it only to `"me"` for now.

#### chunk_method, `str`

The chunking method of the dataset to create. Available options:

- `"naive"`: General (default)
- `"manual`: Manual
- `"qa"`: Q&A
- `"table"`: Table
- `"paper"`: Paper
- `"book"`: Book
- `"laws"`: Laws
- `"presentation"`: Presentation
- `"picture"`: Picture
- `"one"`: One
- `"knowledge_graph"`: Knowledge Graph  
  Ensure your LLM is properly configured on the **Settings** page before selecting this. Please note that Knowledge Graph consumes a large number of Tokens!
- `"email"`: Email

#### parser_config

The parser configuration of the dataset. A `ParserConfig` object's attributes vary based on the selected `chunk_method`:

- `chunk_method`=`"naive"`:  
  `{"chunk_token_num":128,"delimiter":"\\n!?;。；！？","html4excel":False,"layout_recognize":True,"raptor":{"user_raptor":False}}`.
- `chunk_method`=`"qa"`:  
  `{"raptor": {"user_raptor": False}}`
- `chunk_method`=`"manuel"`:  
  `{"raptor": {"user_raptor": False}}`
- `chunk_method`=`"table"`:  
  `None`
- `chunk_method`=`"paper"`:  
  `{"raptor": {"user_raptor": False}}`
- `chunk_method`=`"book"`:  
  `{"raptor": {"user_raptor": False}}`
- `chunk_method`=`"laws"`:  
  `{"raptor": {"user_raptor": False}}`
- `chunk_method`=`"picture"`:  
  `None`
- `chunk_method`=`"presentation"`:  
  `{"raptor": {"user_raptor": False}}`
- `chunk_method`=`"one"`:  
  `None`
- `chunk_method`=`"knowledge-graph"`:  
  `{"chunk_token_num":128,"delimiter":"\\n!?;。；！？","entity_types":["organization","person","location","event","time"]}`
- `chunk_method`=`"email"`:  
  `None`

### Returns

- Success: A `dataset` object.
- Failure: `Exception`

### Examples

```python
from ragflow import RAGFlow

rag_object = RAGFlow(api_key="<YOUR_API_KEY>", base_url="http://<YOUR_BASE_URL>:9380")
dataset = rag_object.create_dataset(name="kb_1")
```

---

## Delete datasets

```python
RAGFlow.delete_datasets(ids: list[str] = None)
```

Deletes datasets by ID.

### Parameters

#### ids: `list[str]`, *Required*

The IDs of the datasets to delete. Defaults to `None`. If it is not specified, all datasets will be deleted.

### Returns

- Success: No value is returned.
- Failure: `Exception`

### Examples

```python
rag_object.delete_datasets(ids=["id_1","id_2"])
```

---

## List datasets

```python
RAGFlow.list_datasets(
    page: int = 1, 
    page_size: int = 1024, 
    orderby: str = "create_time", 
    desc: bool = True,
    id: str = None,
    name: str = None
) -> list[DataSet]
```

Lists datasets.

### Parameters

#### page: `int`

Specifies the page on which the datasets will be displayed. Defaults to `1`.

#### page_size: `int`

The number of datasets on each page. Defaults to `1024`.

#### orderby: `str`

The field by which datasets should be sorted. Available options:

- `"create_time"` (default)
- `"update_time"`

#### desc: `bool`

Indicates whether the retrieved datasets should be sorted in descending order. Defaults to `True`.

#### id: `str`

The ID of the dataset to retrieve. Defaults to `None`.

#### name: `str`

The name of the dataset to retrieve. Defaults to `None`.

### Returns

- Success: A list of `DataSet` objects.
- Failure: `Exception`.

### Examples

#### List all datasets

```python
for dataset in rag_object.list_datasets():
    print(dataset)
```

#### Retrieve a dataset by ID

```python
dataset = rag_object.list_datasets(id = "id_1")
print(dataset[0])
```

---

## Update dataset

```python
DataSet.update(update_message: dict)
```

Updates configurations for the current dataset.

### Parameters

#### update_message: `dict[str, str|int]`, *Required*

A dictionary representing the attributes to update, with the following keys:

- `"name"`: `str` The revised name of the dataset.
- `"embedding_model"`: `str` The updated embedding model name.
  - Ensure that `"chunk_count"` is `0` before updating `"embedding_model"`.
- `"chunk_method"`: `str` The chunking method for the dataset. Available options:
  - `"naive"`: General
  - `"manual`: Manual
  - `"qa"`: Q&A
  - `"table"`: Table
  - `"paper"`: Paper
  - `"book"`: Book
  - `"laws"`: Laws
  - `"presentation"`: Presentation
  - `"picture"`: Picture
  - `"one"`: One
  - `"knowledge_graph"`: Knowledge Graph  
    Ensure your LLM is properly configured on the **Settings** page before selecting this. Please note that Knowledge Graph consumes a large number of Tokens!

### Returns

- Success: No value is returned.
- Failure: `Exception`

### Examples

```python
from ragflow import RAGFlow

rag_object = RAGFlow(api_key="<YOUR_API_KEY>", base_url="http://<YOUR_BASE_URL>:9380")
dataset = rag_object.list_datasets(name="kb_name")
dataset.update({"embedding_model":"BAAI/bge-zh-v1.5", "chunk_method":"manual"})
```

---

:::tip API GROUPING
File Management within Dataset
:::

---

## Upload documents

```python
DataSet.upload_documents(document_list: list[dict])
```

Uploads documents to the current dataset.

### Parameters

#### document_list: `list[dict]`, *Required*

A list of dictionaries representing the documents to upload, each containing the following keys:

- `"display_name"`: (Optional) The file name to display in the dataset.  
- `"blob"`: (Optional) The binary content of the file to upload.

### Returns

- Success: No value is returned.
- Failure: `Exception`

### Examples

```python
dataset = rag_object.create_dataset(name="kb_name")
dataset.upload_documents([{"display_name": "1.txt", "blob": "<BINARY_CONTENT_OF_THE_DOC>"}, {"display_name": "2.pdf", "blob": "<BINARY_CONTENT_OF_THE_DOC>"}])
```

---

## Update document

```python
Document.update(update_message:dict)
```

Updates configurations for the current document.

### Parameters

#### update_message: `dict[str, str|dict[]]`, *Required*

A dictionary representing the attributes to update, with the following keys:

- `"display_name"`: `str` The name of the document to update.
- `"chunk_method"`: `str` The parsing method to apply to the document.
  - `"naive"`: General
  - `"manual`: Manual
  - `"qa"`: Q&A
  - `"table"`: Table
  - `"paper"`: Paper
  - `"book"`: Book
  - `"laws"`: Laws
  - `"presentation"`: Presentation
  - `"picture"`: Picture
  - `"one"`: One
  - `"knowledge_graph"`: Knowledge Graph  
    Ensure your LLM is properly configured on the **Settings** page before selecting this. Please note that Knowledge Graph consumes a large number of Tokens!
  - `"email"`: Email
- `"parser_config"`: `dict[str, Any]` The parsing configuration for the document. Its attributes vary based on the selected `"chunk_method"`:
  - `"chunk_method"`=`"naive"`:  
    `{"chunk_token_num":128,"delimiter":"\\n!?;。；！？","html4excel":False,"layout_recognize":True,"raptor":{"user_raptor":False}}`.
  - `chunk_method`=`"qa"`:  
    `{"raptor": {"user_raptor": False}}`
  - `chunk_method`=`"manuel"`:  
    `{"raptor": {"user_raptor": False}}`
  - `chunk_method`=`"table"`:  
    `None`
  - `chunk_method`=`"paper"`:  
    `{"raptor": {"user_raptor": False}}`
  - `chunk_method`=`"book"`:  
    `{"raptor": {"user_raptor": False}}`
  - `chunk_method`=`"laws"`:  
    `{"raptor": {"user_raptor": False}}`
  - `chunk_method`=`"presentation"`:  
    `{"raptor": {"user_raptor": False}}`
  - `chunk_method`=`"picture"`:  
    `None`
  - `chunk_method`=`"one"`:  
    `None`
  - `chunk_method`=`"knowledge-graph"`:  
    `{"chunk_token_num":128,"delimiter":"\\n!?;。；！？","entity_types":["organization","person","location","event","time"]}`
  - `chunk_method`=`"email"`:  
    `None`

### Returns

- Success: No value is returned.
- Failure: `Exception`

### Examples

```python
from ragflow import RAGFlow

rag_object = RAGFlow(api_key="<YOUR_API_KEY>", base_url="http://<YOUR_BASE_URL>:9380")
dataset = rag_object.list_datasets(id='id')
dataset = dataset[0]
doc = dataset.list_documents(id="wdfxb5t547d")
doc = doc[0]
doc.update([{"parser_config": {"chunk_token_count": 256}}, {"chunk_method": "manual"}])
```

---

## Download document

```python
Document.download() -> bytes
```

Downloads the current document.

### Returns

The downloaded document in bytes.

### Examples

```python
from ragflow import RAGFlow

rag_object = RAGFlow(api_key="<YOUR_API_KEY>", base_url="http://<YOUR_BASE_URL>:9380")
dataset = rag_object.list_datasets(id="id")
dataset = dataset[0]
doc = dataset.list_documents(id="wdfxb5t547d")
doc = doc[0]
open("~/ragflow.txt", "wb+").write(doc.download())
print(doc)
```

---

## List documents

```python
Dataset.list_documents(id:str =None, keywords: str=None, page: int=1, page_size:int = 1024,order_by:str = "create_time", desc: bool = True) -> list[Document]
```

Lists documents in the current dataset.

### Parameters

#### id: `str`

The ID of the document to retrieve. Defaults to `None`.

#### keywords: `str`

The keywords used to match document titles. Defaults to `None`.

#### page: `int`

Specifies the page on which the documents will be displayed. Defaults to `1`.

#### page_size: `int`

The maximum number of documents on each page. Defaults to `1024`.

#### orderby: `str`

The field by which documents should be sorted. Available options:

- `"create_time"` (default)
- `"update_time"`

#### desc: `bool`

Indicates whether the retrieved documents should be sorted in descending order. Defaults to `True`.

### Returns

- Success: A list of `Document` objects.
- Failure: `Exception`.

A `Document` object contains the following attributes:

- `id`: The document ID. Defaults to `""`.
- `name`: The document name. Defaults to `""`.
- `thumbnail`: The thumbnail image of the document. Defaults to `None`.
- `dataset_id`: The dataset ID associated with the document. Defaults to `None`.
- `chunk_method` The chunk method name. Defaults to `"naive"`.
- `source_type`: The source type of the document. Defaults to `"local"`.
- `type`: Type or category of the document. Defaults to `""`. Reserved for future use.
- `created_by`: `str` The creator of the document. Defaults to `""`.
- `size`: `int` The document size in bytes. Defaults to `0`.
- `token_count`: `int` The number of tokens in the document. Defaults to `0`.
- `chunk_count`: `int` The number of chunks in the document. Defaults to `0`.
- `progress`: `float` The current processing progress as a percentage. Defaults to `0.0`.
- `progress_msg`: `str` A message indicating the current progress status. Defaults to `""`.
- `process_begin_at`: `datetime` The start time of document processing. Defaults to `None`.
- `process_duation`: `float` Duration of the processing in seconds. Defaults to `0.0`.
- `run`: `str` The document's processing status:
  - `"UNSTART"`  (default)
  - `"RUNNING"`
  - `"CANCEL"`
  - `"DONE"`
  - `"FAIL"`
- `status`: `str` Reserved for future use.
- `parser_config`: `ParserConfig` Configuration object for the parser. Its attributes vary based on the selected `chunk_method`:
  - `chunk_method`=`"naive"`:  
    `{"chunk_token_num":128,"delimiter":"\\n!?;。；！？","html4excel":False,"layout_recognize":True,"raptor":{"user_raptor":False}}`.
  - `chunk_method`=`"qa"`:  
    `{"raptor": {"user_raptor": False}}`
  - `chunk_method`=`"manuel"`:  
    `{"raptor": {"user_raptor": False}}`
  - `chunk_method`=`"table"`:  
    `None`
  - `chunk_method`=`"paper"`:  
    `{"raptor": {"user_raptor": False}}`
  - `chunk_method`=`"book"`:  
    `{"raptor": {"user_raptor": False}}`
  - `chunk_method`=`"laws"`:  
    `{"raptor": {"user_raptor": False}}`
  - `chunk_method`=`"presentation"`:  
    `{"raptor": {"user_raptor": False}}`
  - `chunk_method`=`"picure"`:  
    `None`
  - `chunk_method`=`"one"`:  
    `None`
  - `chunk_method`=`"knowledge-graph"`:  
    `{"chunk_token_num":128,"delimiter": "\\n!?;。；！？","entity_types":["organization","person","location","event","time"]}`
  - `chunk_method`=`"email"`:  
    `None`

### Examples

```python
from ragflow import RAGFlow

rag_object = RAGFlow(api_key="<YOUR_API_KEY>", base_url="http://<YOUR_BASE_URL>:9380")
dataset = rag_object.create_dataset(name="kb_1")

filename1 = "~/ragflow.txt"
blob = open(filename1 , "rb").read()
dataset.upload_documents([{"name":filename1,"blob":blob}])
for doc in dataset.list_documents(keywords="rag", page=0, page_size=12):
    print(doc)
```

---

## Delete documents

```python
DataSet.delete_documents(ids: list[str] = None)
```

Deletes documents by ID.

### Parameters

#### ids: `list[list]`

The IDs of the documents to delete. Defaults to `None`. If it is not specified, all documents in the dataset will be deleted.

### Returns

- Success: No value is returned.
- Failure: `Exception`

### Examples

```python
from ragflow import RAGFlow

rag_object = RAGFlow(api_key="<YOUR_API_KEY>", base_url="http://<YOUR_BASE_URL>:9380")
dataset = rag_object.list_datasets(name="kb_1")
dataset = dataset[0]
dataset.delete_documents(ids=["id_1","id_2"])
```

---

## Parse documents

```python
DataSet.async_parse_documents(document_ids:list[str]) -> None
```

Parses documents in the current dataset.

### Parameters

#### document_ids: `list[str]`, *Required*

The IDs of the documents to parse.

### Returns

- Success: No value is returned.
- Failure: `Exception`

### Examples

```python
rag_object = RAGFlow(api_key="<YOUR_API_KEY>", base_url="http://<YOUR_BASE_URL>:9380")
dataset = rag_object.create_dataset(name="dataset_name")
documents = [
    {'display_name': 'test1.txt', 'blob': open('./test_data/test1.txt',"rb").read()},
    {'display_name': 'test2.txt', 'blob': open('./test_data/test2.txt',"rb").read()},
    {'display_name': 'test3.txt', 'blob': open('./test_data/test3.txt',"rb").read()}
]
dataset.upload_documents(documents)
documents = dataset.list_documents(keywords="test")
ids = []
for document in documents:
    ids.append(document.id)
dataset.async_parse_documents(ids)
print("Async bulk parsing initiated.")
```

---

## Stop parsing documents

```python
DataSet.async_cancel_parse_documents(document_ids:list[str])-> None
```

Stops parsing specified documents.

### Parameters

#### document_ids: `list[str]`, *Required*

The IDs of the documents for which parsing should be stopped.

### Returns

- Success: No value is returned.
- Failure: `Exception`

### Examples

```python
rag_object = RAGFlow(api_key="<YOUR_API_KEY>", base_url="http://<YOUR_BASE_URL>:9380")
dataset = rag_object.create_dataset(name="dataset_name")
documents = [
    {'display_name': 'test1.txt', 'blob': open('./test_data/test1.txt',"rb").read()},
    {'display_name': 'test2.txt', 'blob': open('./test_data/test2.txt',"rb").read()},
    {'display_name': 'test3.txt', 'blob': open('./test_data/test3.txt',"rb").read()}
]
dataset.upload_documents(documents)
documents = dataset.list_documents(keywords="test")
ids = []
for document in documents:
    ids.append(document.id)
dataset.async_parse_documents(ids)
print("Async bulk parsing initiated.")
dataset.async_cancel_parse_documents(ids)
print("Async bulk parsing cancelled.")
```

---

## Add chunk

```python
Document.add_chunk(content:str, important_keywords:list[str] = []) -> Chunk
```

Adds a chunk to the current document.

### Parameters

#### content: `str`, *Required*

The text content of the chunk.

#### important_keywords: `list[str]`

The key terms or phrases to tag with the chunk.

### Returns

- Success: A `Chunk` object.
- Failure: `Exception`.

A `Chunk` object contains the following attributes:

- `id`: `str`: The chunk ID.
- `content`: `str` The text content of the chunk.
- `important_keywords`: `list[str]` A list of key terms or phrases tagged with the chunk.
- `create_time`: `str` The time when the chunk was created (added to the document).
- `create_timestamp`: `float` The timestamp representing the creation time of the chunk, expressed in seconds since January 1, 1970.
- `dataset_id`: `str` The ID of the associated dataset.
- `document_name`: `str` The name of the associated document.
- `document_id`: `str` The ID of the associated document.
- `available`: `bool` The chunk's availability status in the dataset. Value options:
  - `False`: Unavailable
  - `True`: Available (default)


### Examples

```python
from ragflow import RAGFlow

rag_object = RAGFlow(api_key="<YOUR_API_KEY>", base_url="http://<YOUR_BASE_URL>:9380")
dataset = rag_object.list_datasets(id="123")
dtaset = dataset[0]
doc = dataset.list_documents(id="wdfxb5t547d")
doc = doc[0]
chunk = doc.add_chunk(content="xxxxxxx")
```

---

## List chunks

```python
Document.list_chunks(keywords: str = None, page: int = 1, page_size: int = 1024, id : str = None) -> list[Chunk]
```

Lists chunks in the current document.

### Parameters

#### keywords: `str`

The keywords used to match chunk content. Defaults to `None`

#### page: `int`

Specifies the page on which the chunks will be displayed. Defaults to `1`.

#### page_size: `int`

The maximum number of chunks on each page. Defaults to `1024`.

#### id: `str`

The ID of the chunk to retrieve. Default: `None`

### Returns

- Success: A list of `Chunk` objects.
- Failure: `Exception`.

### Examples

```python
from ragflow import RAGFlow

rag_object = RAGFlow(api_key="<YOUR_API_KEY>", base_url="http://<YOUR_BASE_URL>:9380")
dataset = rag_object.list_datasets("123")
dataset = dataset[0]
dataset.async_parse_documents(["wdfxb5t547d"])
for chunk in doc.list_chunks(keywords="rag", page=0, page_size=12):
    print(chunk)
```

---

## Delete chunks

```python
Document.delete_chunks(chunk_ids: list[str])
```

Deletes chunks by ID.

### Parameters

#### chunk_ids: `list[str]`

The IDs of the chunks to delete. Defaults to `None`. If it is not specified, all chunks of the current document will be deleted.

### Returns

- Success: No value is returned.
- Failure: `Exception`

### Examples

```python
from ragflow import RAGFlow

rag_object = RAGFlow(api_key="<YOUR_API_KEY>", base_url="http://<YOUR_BASE_URL>:9380")
dataset = rag_object.list_datasets(id="123")
dataset = dataset[0]
doc = dataset.list_documents(id="wdfxb5t547d")
doc = doc[0]
chunk = doc.add_chunk(content="xxxxxxx")
doc.delete_chunks(["id_1","id_2"])
```

---

## Update chunk

```python
Chunk.update(update_message: dict)
```

Updates content or configurations for the current chunk.

### Parameters

#### update_message: `dict[str, str|list[str]|int]` *Required*

A dictionary representing the attributes to update, with the following keys:

- `"content"`: `str` The text content of the chunk.
- `"important_keywords"`: `list[str]` A list of key terms or phrases to tag with the chunk.
- `"available"`: `bool` The chunk's availability status in the dataset. Value options:
  - `False`: Unavailable
  - `True`: Available (default)

### Returns

- Success: No value is returned.
- Failure: `Exception`

### Examples

```python
from ragflow import RAGFlow

rag_object = RAGFlow(api_key="<YOUR_API_KEY>", base_url="http://<YOUR_BASE_URL>:9380")
dataset = rag_object.list_datasets(id="123")
dataset = dataset[0]
doc = dataset.list_documents(id="wdfxb5t547d")
doc = doc[0]
chunk = doc.add_chunk(content="xxxxxxx")
chunk.update({"content":"sdfx..."})
```

---

## Retrieve chunks

```python
RAGFlow.retrieve(question:str="", dataset_ids:list[str]=None, document_ids=list[str]=None, page:int=1, page_size:int=1024, similarity_threshold:float=0.2, vector_similarity_weight:float=0.3, top_k:int=1024,rerank_id:str=None,keyword:bool=False,higlight:bool=False) -> list[Chunk]
```

Retrieves chunks from specified datasets.

### Parameters

#### question: `str` *Required*

The user query or query keywords. Defaults to `""`.

#### dataset_ids: `list[str]`, *Required*

The IDs of the datasets to search. Defaults to `None`. If you do not set this argument, ensure that you set `document_ids`.

#### document_ids: `list[str]`

The IDs of the documents to search. Defaults to `None`. You must ensure all selected documents use the same embedding model. Otherwise, an error will occur. If you do not set this argument, ensure that you set `dataset_ids`.

#### page: `int`

The starting index for the documents to retrieve. Defaults to `1`.

#### page_size: `int`

The maximum number of chunks to retrieve. Defaults to `1024`.

#### Similarity_threshold: `float`

The minimum similarity score. Defaults to `0.2`.

#### vector_similarity_weight: `float`

The weight of vector cosine similarity. Defaults to `0.3`. If x represents the vector cosine similarity, then (1 - x) is the term similarity weight.

#### top_k: `int`

The number of chunks engaged in vector cosine computaton. Defaults to `1024`.

#### rerank_id: `str`

The ID of the rerank model. Defaults to `None`.

#### keyword: `bool`

Indicates whether to enable keyword-based matching:

- `True`: Enable keyword-based matching.
- `False`: Disable keyword-based matching (default).

#### highlight: `bool`

Specifies whether to enable highlighting of matched terms in the results:

- `True`: Enable highlighting of matched terms.
- `False`: Disable highlighting of matched terms (default).

### Returns

- Success: A list of `Chunk` objects representing the document chunks.
- Failure: `Exception`

### Examples

```python
from ragflow import RAGFlow

rag_object = RAGFlow(api_key="<YOUR_API_KEY>", base_url="http://<YOUR_BASE_URL>:9380")
dataset = rag_object.list_datasets(name="ragflow")
dataset = dataset[0]
name = 'ragflow_test.txt'
path = './test_data/ragflow_test.txt'
rag_object.create_document(dataset, name=name, blob=open(path, "rb").read())
doc = dataset.list_documents(name=name)
doc = doc[0]
dataset.async_parse_documents([doc.id])
for c in rag_object.retrieve(question="What's ragflow?", 
             dataset_ids=[dataset.id], document_ids=[doc.id], 
             page=1, page_size=30, similarity_threshold=0.2, 
             vector_similarity_weight=0.3,
             top_k=1024
             ):
    print(c)
```

---

:::tip API GROUPING
Chat Assistant Management
:::

---

## Create chat assistant

```python
RAGFlow.create_chat(
    name: str, 
    avatar: str = "", 
    dataset_ids: list[str] = [], 
    llm: Chat.LLM = None, 
    prompt: Chat.Prompt = None
) -> Chat
```

Creates a chat assistant.

### Parameters

#### name: `str`, *Required*

The name of the chat assistant.

#### avatar: `str`

Base64 encoding of the avatar. Defaults to `""`.

#### dataset_ids: `list[str]`

The IDs of the associated datasets. Defaults to `[""]`.

#### llm: `Chat.LLM`

The LLM settings for the chat assistant to create. Defaults to `None`. When the value is `None`, a dictionary with the following values will be generated as the default. An `LLM` object contains the following attributes:

- `model_name`: `str`  
  The chat model name. If it is `None`, the user's default chat model will be used.  
- `temperature`: `float`  
  Controls the randomness of the model's predictions. A lower temperature increases the model's confidence in its responses; a higher temperature increases creativity and diversity. Defaults to `0.1`.  
- `top_p`: `float`  
  Also known as “nucleus sampling”, this parameter sets a threshold to select a smaller set of words to sample from. It focuses on the most likely words, cutting off the less probable ones. Defaults to `0.3`  
- `presence_penalty`: `float`  
  This discourages the model from repeating the same information by penalizing words that have already appeared in the conversation. Defaults to `0.2`.
- `frequency penalty`: `float`  
  Similar to the presence penalty, this reduces the model’s tendency to repeat the same words frequently. Defaults to `0.7`.
- `max_token`: `int`  
  The maximum length of the model’s output, measured in the number of tokens (words or pieces of words). Defaults to `512`.

#### prompt: `Chat.Prompt`

Instructions for the LLM to follow.  A `Prompt` object contains the following attributes:

- `similarity_threshold`: `float` RAGFlow uses a hybrid of weighted keyword similarity and vector cosine similarity during retrieval. This argument sets the threshold for similarities between the user query and chunks. If a similarity score falls below this threshold, the corresponding chunk will be excluded from the results. The default value is `0.2`.
- `keywords_similarity_weight`: `float` This argument sets the weight of keyword similarity in the hybrid similarity score with vector cosine similarity or reranking model similarity. By adjusting this weight, you can control the influence of keyword similarity in relation to other similarity measures. The default value is `0.7`.
- `top_n`: `int` This argument specifies the number of top chunks with similarity scores above the `similarity_threshold` that are fed to the LLM. The LLM will *only* access these 'top N' chunks.  The default value is `8`.
- `variables`: `list[dict[]]` This argument lists the variables to use in the 'System' field of **Chat Configurations**. Note that:
  - `knowledge` is a reserved variable, which represents the retrieved chunks.
  - All the variables in 'System' should be curly bracketed.
  - The default value is `[{"key": "knowledge", "optional": True}]`.
- `rerank_model`: `str` If it is not specified, vector cosine similarity will be used; otherwise, reranking score will be used. Defaults to `""`.
- `empty_response`: `str` If nothing is retrieved in the dataset for the user's question, this will be used as the response. To allow the LLM to improvise when nothing is found, leave this blank. Defaults to `None`.
- `opener`: `str` The opening greeting for the user. Defaults to `"Hi! I am your assistant, can I help you?"`.
- `show_quote`: `bool` Indicates whether the source of text should be displayed. Defaults to `True`.
- `prompt`: `str` The prompt content.

### Returns

- Success: A `Chat` object representing the chat assistant.
- Failure: `Exception`

### Examples

```python
from ragflow import RAGFlow

rag_object = RAGFlow(api_key="<YOUR_API_KEY>", base_url="http://<YOUR_BASE_URL>:9380")
datasets = rag_object.list_datasets(name="kb_1")
dataset_ids = []
for dataset in datasets:
    dataset_ids.append(dataset.id)
assistant = rag_object.create_chat("Miss R", dataset_ids=dataset_ids)
```

---

## Update chat assistant

```python
Chat.update(update_message: dict)
```

Updates configurations for the current chat assistant.

### Parameters

#### update_message: `dict[str, str|list[str]|dict[]]`, *Required*

A dictionary representing the attributes to update, with the following keys:

- `"name"`: `str` The revised name of the chat assistant.
- `"avatar"`: `str` Base64 encoding of the avatar. Defaults to `""`
- `"dataset_ids"`: `list[str]` The datasets to update.
- `"llm"`: `dict` The LLM settings:
  - `"model_name"`, `str` The chat model name.
  - `"temperature"`, `float` Controls the randomness of the model's predictions.  
  - `"top_p"`, `float` Also known as “nucleus sampling”, this parameter sets a threshold to select a smaller set of words to sample from.  
  - `"presence_penalty"`, `float` This discourages the model from repeating the same information by penalizing words that have appeared in the conversation.
  - `"frequency penalty"`, `float` Similar to presence penalty, this reduces the model’s tendency to repeat the same words.
  - `"max_token"`, `int` The maximum length of the model’s output, measured in the number of tokens (words or pieces of words).
- `"prompt"` : Instructions for the LLM to follow.
  - `"similarity_threshold"`: `float` RAGFlow uses a hybrid of weighted keyword similarity and vector cosine similarity during retrieval. This argument sets the threshold for similarities between the user query and chunks. If a similarity score falls below this threshold, the corresponding chunk will be excluded from the results. The default value is `0.2`.
  - `"keywords_similarity_weight"`: `float` This argument sets the weight of keyword similarity in the hybrid similarity score with vector cosine similarity or reranking model similarity. By adjusting this weight, you can control the influence of keyword similarity in relation to other similarity measures. The default value is `0.7`.
  - `"top_n"`: `int` This argument specifies the number of top chunks with similarity scores above the `similarity_threshold` that are fed to the LLM. The LLM will *only* access these 'top N' chunks.  The default value is `8`.
  - `"variables"`: `list[dict[]]`  This argument lists the variables to use in the 'System' field of **Chat Configurations**. Note that:
    - `knowledge` is a reserved variable, which represents the retrieved chunks.
    - All the variables in 'System' should be curly bracketed.
    - The default value is `[{"key": "knowledge", "optional": True}]`.
  - `"rerank_model"`: `str` If it is not specified, vector cosine similarity will be used; otherwise, reranking score will be used. Defaults to `""`.
  - `"empty_response"`: `str` If nothing is retrieved in the dataset for the user's question, this will be used as the response. To allow the LLM to improvise when nothing is retrieved, leave this blank. Defaults to `None`.
  - `"opener"`: `str` The opening greeting for the user. Defaults to `"Hi! I am your assistant, can I help you?"`.
  - `"show_quote`: `bool` Indicates whether the source of text should be displayed Defaults to `True`.
  - `"prompt"`: `str` The prompt content.

### Returns

- Success: No value is returned.
- Failure: `Exception`

### Examples

```python
from ragflow import RAGFlow

rag_object = RAGFlow(api_key="<YOUR_API_KEY>", base_url="http://<YOUR_BASE_URL>:9380")
datasets = rag_object.list_datasets(name="kb_1")
dataset_id = datasets[0].id
assistant = rag_object.create_chat("Miss R", dataset_ids=[dataset_id])
assistant.update({"name": "Stefan", "llm": {"temperature": 0.8}, "prompt": {"top_n": 8}})
```

---

## Delete chat assistants

```python
RAGFlow.delete_chats(ids: list[str] = None)
```

Deletes chat assistants by ID.

### Parameters

#### ids: `list[str]`

The IDs of the chat assistants to delete. Defaults to `None`. If it is ot specified, all chat assistants in the system will be deleted.

### Returns

- Success: No value is returned.
- Failure: `Exception`

### Examples

```python
from ragflow import RAGFlow

rag_object = RAGFlow(api_key="<YOUR_API_KEY>", base_url="http://<YOUR_BASE_URL>:9380")
rag_object.delete_chats(ids=["id_1","id_2"])
```

---

## List chat assistants

```python
RAGFlow.list_chats(
    page: int = 1, 
    page_size: int = 1024, 
    orderby: str = "create_time", 
    desc: bool = True,
    id: str = None,
    name: str = None
) -> list[Chat]
```

Lists chat assistants.

### Parameters

#### page: `int`

Specifies the page on which the chat assistants will be displayed. Defaults to `1`.

#### page_size: `int`

The number of chat assistants on each page. Defaults to `1024`.

#### orderby: `str`

The attribute by which the results are sorted. Available options:

- `"create_time"` (default)
- `"update_time"`

#### desc: `bool`

Indicates whether the retrieved chat assistants should be sorted in descending order. Defaults to `True`.

#### id: `str`  

The ID of the chat assistant to retrieve. Defaults to `None`.

#### name: `str`  

The name of the chat assistant to retrieve. Defaults to `None`.

### Returns

- Success: A list of `Chat` objects.
- Failure: `Exception`.

### Examples

```python
from ragflow import RAGFlow

rag_object = RAGFlow(api_key="<YOUR_API_KEY>", base_url="http://<YOUR_BASE_URL>:9380")
for assistant in rag_object.list_chats():
    print(assistant)
```

---

:::tip API GROUPING
Chat Session APIs
:::

---

## Create session

```python
Chat.create_session(name: str = "New session") -> Session
```

Creates a chat session.

### Parameters

#### name: `str`

The name of the chat session to create.

### Returns

- Success: A `Session` object containing the following attributes:
  - `id`: `str` The auto-generated unique identifier of the created session.
  - `name`: `str` The name of the created session.
  - `message`: `list[Message]` The messages of the created session assistant. Default: `[{"role": "assistant", "content": "Hi! I am your assistant，can I help you?"}]`
  - `chat_id`: `str` The ID of the associated chat assistant.
- Failure: `Exception`

### Examples

```python
from ragflow import RAGFlow

rag_object = RAGFlow(api_key="<YOUR_API_KEY>", base_url="http://<YOUR_BASE_URL>:9380")
assistant = rag_object.list_chats(name="Miss R")
assistant = assistant[0]
session = assistant.create_session()
```

---

## Update session

```python
Session.update(update_message: dict)
```

Updates the current session.

### Parameters

#### update_message: `dict[str, Any]`, *Required*

A dictionary representing the attributes to update, with only one key:

- `"name"`: `str` The revised name of the session.

### Returns

- Success: No value is returned.
- Failure: `Exception`

### Examples

```python
from ragflow import RAGFlow

rag_object = RAGFlow(api_key="<YOUR_API_KEY>", base_url="http://<YOUR_BASE_URL>:9380")
assistant = rag_object.list_chats(name="Miss R")
assistant = assistant[0]
session = assistant.create_session("session_name")
session.update({"name": "updated_name"})
```

---

## List sessions

```python
Chat.list_sessions(
    page: int = 1, 
    page_size: int = 1024, 
    orderby: str = "create_time", 
    desc: bool = True,
    id: str = None,
    name: str = None
) -> list[Session]
```

Lists sessions associated with the current chat assistant.

### Parameters

#### page: `int`

Specifies the page on which the sessions will be displayed. Defaults to `1`.

#### page_size: `int`

The number of sessions on each page. Defaults to `1024`.

#### orderby: `str`

The field by which sessions should be sorted. Available options:

- `"create_time"` (default)
- `"update_time"`

#### desc: `bool`

Indicates whether the retrieved sessions should be sorted in descending order. Defaults to `True`.

#### id: `str`

The ID of the chat session to retrieve. Defaults to `None`.

#### name: `str`

The name of the chat session to retrieve. Defaults to `None`.

### Returns

- Success: A list of `Session` objects associated with the current chat assistant.
- Failure: `Exception`.

### Examples

```python
from ragflow import RAGFlow

rag_object = RAGFlow(api_key="<YOUR_API_KEY>", base_url="http://<YOUR_BASE_URL>:9380")
assistant = rag_object.list_chats(name="Miss R")
assistant = assistant[0]
for session in assistant.list_sessions():
    print(session)
```

---

## Delete sessions

```python
Chat.delete_sessions(ids:list[str] = None)
```

Deletes sessions by ID.

### Parameters

#### ids: `list[str]`

The IDs of the sessions to delete. Defaults to `None`. If it is not specified, all sessions associated with the current chat assistant will be deleted.

### Returns

- Success: No value is returned.
- Failure: `Exception`

### Examples

```python
from ragflow import RAGFlow

rag_object = RAGFlow(api_key="<YOUR_API_KEY>", base_url="http://<YOUR_BASE_URL>:9380")
assistant = rag_object.list_chats(name="Miss R")
assistant = assistant[0]
assistant.delete_sessions(ids=["id_1","id_2"])
```

---

## Converse

```python
Session.ask(question: str, stream: bool = False) -> Optional[Message, iter[Message]]
```

Asks a question to start an AI-powered conversation.

### Parameters

#### question: `str` *Required*

The question to start an AI-powered conversation.

#### stream: `bool`

Indicates whether to output responses in a streaming way:

- `True`: Enable streaming.
- `False`: Disable streaming (default).

### Returns

- A `Message` object containing the response to the question if `stream` is set to `False`
- An iterator containing multiple `message` objects (`iter[Message]`) if `stream` is set to `True`

The following shows the attributes of a `Message` object:

#### id: `str`

The auto-generated message ID.

#### content: `str`

The content of the message. Defaults to `"Hi! I am your assistant, can I help you?"`.

#### reference: `list[Chunk]`

A list of `Chunk` objects representing references to the message, each containing the following attributes:

- `id` `str`  
  The chunk ID.
- `content` `str`  
  The content of the chunk.
- `image_id` `str`  
  The ID of the snapshot of the chunk. Applicable only when the source of the chunk is an image, PPT, PPTX, or PDF file.
- `document_id` `str`  
  The ID of the referenced document.
- `document_name` `str`  
  The name of the referenced document.
- `position` `list[str]`  
  The location information of the chunk within the referenced document.
- `dataset_id` `str`  
  The ID of the dataset to which the referenced document belongs.
- `similarity` `float`  
  A composite similarity score of the chunk ranging from `0` to `1`, with a higher value indicating greater similarity. It is the weighted sum of `vector_similarity` and `term_similarity`.
- `vector_similarity` `float`  
  A vector similarity score of the chunk ranging from `0` to `1`, with a higher value indicating greater similarity between vector embeddings.
- `term_similarity` `float`  
  A keyword similarity score of the chunk ranging from `0` to `1`, with a higher value indicating greater similarity between keywords.

### Examples

```python
from ragflow import RAGFlow

rag_object = RAGFlow(api_key="<YOUR_API_KEY>", base_url="http://<YOUR_BASE_URL>:9380")
assistant = rag_object.list_chats(name="Miss R")
assistant = assistant[0]
session = assistant.create_session()    

print("\n==================== Miss R =====================\n")
print(assistant.get_prologue())

while True:
    question = input("\n==================== User =====================\n> ")
    print("\n==================== Miss R =====================\n")
    
    cont = ""
    for ans in session.ask(question, stream=True):
        print(answer.content[len(cont):], end='', flush=True)
        cont = answer.content
```