警告

本教程由社区贡献，不获得 Open WebUI 团队的支持。它仅作为演示，说明如何根据您的特定用例定制 Open WebUI。想要贡献？请查看贡献教程。

💡 特殊参数

当开发您自己的工具 (Tools)、函数 (Functions)（过滤器 (Filters)、管道 (Pipes) 或 动作 (Actions)）、流程 (Pipelines) 等时，您可以使用特殊参数来探索 Open-WebUI 提供的全部功能。

本页面旨在详细介绍每个特殊参数的类型和结构，并提供示例。

`body`

一个字典 (dict)，通常几乎直接发送给模型。虽然它不严格是一个特殊参数，但为了方便参考此处包含它，因为它本身包含一些特殊参数。

示例

{
  "stream": true,
  "model": "my-cool-model",
  # lowercase string with - separated words: this is the ID of the model
  "messages": [
    {
      "role": "user",
      "content": [
        {
          "type": "text",
          "text": "What is in this picture?"
        },
        {
          "type": "image_url",
          "image_url": {
            "url": "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAdYAAAGcCAYAAABk2YF[REDACTED]"
            # Images are passed as base64 encoded data
          }
        }
      ]
    },
    {
      "role": "assistant",
      "content": "The image appears to be [REDACTED]"
    },
  ],
  "features": {
    "image_generation": false,
    "code_interpreter": false,
    "web_search": false
  },
  "stream_options": {
    "include_usage": true
  },
  "metadata": "[The exact same dict as __metadata__]",
  "files": "[The exact same list as __files__]"
}

`user`

一个包含用户信息字典 (dict)。

请注意，如果定义了UserValves类，则必须通过__user__["valves"]访问其实例。否则，valves键值将完全从__user__中缺失。

示例

{
  "id": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "email": "cheesy_dude@openwebui.com",
  "name": "Patrick",
  "role": "user",
  # role can be either `user` or `admin`
  "valves": "[the UserValve instance]"
}

`metadata`

一个包含关于聊天、模型、文件等广泛信息的字典 (dict)。

示例

{
  "user_id": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "chat_id": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "message_id": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "session_id": "xxxxxxxxxxxxxxxxxxxx",
  "tool_ids": null,
  # tool_ids is a list of str.
  "tool_servers": [],
  "files": "[Same as in body['files']]",
  # If no files are given, the files key exists in __metadata__ and its value is []
  "features": {
    "image_generation": false,
    "code_interpreter": false,
    "web_search": false
  },
  "variables": {
    "{{USER_NAME}}": "cheesy_username",
    "{{USER_LOCATION}}": "Unknown",
    "{{CURRENT_DATETIME}}": "2025-02-02 XX:XX:XX",
    "{{CURRENT_DATE}}": "2025-02-02",
    "{{CURRENT_TIME}}": "XX:XX:XX",
    "{{CURRENT_WEEKDAY}}": "Monday",
    "{{CURRENT_TIMEZONE}}": "Europe/Berlin",
    "{{USER_LANGUAGE}}": "en-US"
  },
  "model": "[The exact same dict as __model__]",
  "direct": false,
  "function_calling": "native",
  "type": "user_response",
  "interface": "open-webui"
}

`model`

一个包含模型信息的字典 (dict)。

示例

{
  "id": "my-cool-model",
  "name": "My Cool Model",
  "object": "model",
  "created": 1746000000,
  "owned_by": "openai",
  # either openai or ollama
  "info": {
      "id": "my-cool-model",
      "user_id": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
      "base_model_id": "gpt-4o",
      # this is the name of model that the model endpoint serves
      "name": "My Cool Model",
      "params": {
      "system": "You are my best assistant. You answer [REDACTED]",
      "function_calling": "native"
      # custom options appear here, for example "Top K"
      },
      "meta": {
      "profile_image_url": "/static/favicon.png",
      "description": "Description of my-cool-model",
      "capabilities": {
          "vision": true,
          "usage": true,
          "citations": true
      },
      "position": 17,
      "tags": [
          {
          "name": "for_friends"
          },
          {
          "name": "vision_enabled"
          }
      ],
      "suggestion_prompts": null
      },
      "access_control": {
      "read": {
          "group_ids": [],
          "user_ids": []
      },
      "write": {
          "group_ids": [],
          "user_ids": []
      }
      },
      "is_active": true,
      "updated_at": 1740000000,
      "created_at": 1740000000
  },
  "preset": true,
  "actions": [],
  "tags": [
      {
          "name": "for_friends"
      },
      {
          "name": "vision_enabled"
      }
  ]
}

`messages`

一个包含先前消息的列表 (list)。

请参阅上面body["messages"]的值。

`__chat_id__`

chat_id的字符串 (str)表示。

请参阅上面__metadata__["chat_id"]的值。

`__session_id__`

session_id的字符串 (str)表示。

请参阅上面__metadata__["session_id"]的值。

`__message_id__`

message_id的字符串 (str)表示。

请参阅上面__metadata__["message_id"]的值。

`__event_emitter__`

一个用于向用户显示事件信息的可调用对象 (Callable)。

`__event_call__`

一个用于动作 (Actions)的可调用对象 (Callable)。

`files`

通过聊天发送的文件列表 (list)。请注意，图像不被视为文件，而是作为body["messages"]列表的一部分直接发送到模型。

出于性能原因，文件的实际二进制内容不作为参数的一部分，但如有需要，文件仍可通过其路径访问。例如，使用docker时，路径的 Python 语法可以是

from pathlib import Path

the_file = Path(f"/app/backend/data/uploads/{__files__[0]["files"]["id"]}_{__files__[0]["files"]["filename"]}")
assert the_file.exists()

请注意，同一文件字典也可通过__metadata__["files"]访问（如果未发送文件，其值为[]），或通过body["files"]访问（但如果未发送文件，files键将完全从body中缺失）。

示例

[
  {
    "type": "file",
    "file": {
      "id": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
      "filename": "Napoleon - Wikipedia.pdf",
      "user_id": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
      "hash": "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
      "data": {
        "content": "Napoleon - Wikipedia\n\n\nNapoleon I\n\nThe Emperor Napoleon in His Study at the\nTuileries, 1812\n\nEmperor of the French\n\n1st reign 18 May 1804 – 6 April 1814\n\nSuccessor Louis XVIII[a]\n\n2nd reign 20 March 1815 – 22 June 1815\n\nSuccessor Louis XVIII[a]\n\nFirst Consul of the French Republic\n\nIn office\n13 December 1799 – 18 May 1804\n\nBorn Napoleone Buonaparte\n15 August 1769\nAjaccio, Corsica, Kingdom of\nFrance\n\nDied 5 May 1821 (aged 51)\nLongwood, Saint Helena\n\nBurial 15 December 1840\nLes Invalides, Paris\n\nNapoleon\nNapoleon Bonaparte[b] (born Napoleone\nBuonaparte;[1][c] 15 August 1769 – 5 May 1821), later\nknown [REDACTED]",
        # The content value is the output of the document parser, the above example is with Tika as a document parser
      },
      "meta": {
        "name": "Napoleon - Wikipedia.pdf",
        "content_type": "application/pdf",
        "size": 10486578,
        # in bytes, here about 10Mb
        "data": {},
        "collection_name": "file-96xxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
        # always begins by 'file'
      },
      "created_at": 1740000000,
      "updated_at": 1740000000
    },
    "id": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
    "url": "/api/v1/files/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
    "name": "Napoleon - Wikipedia.pdf",
    "collection_name": "file-96xxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
    "status": "uploaded",
    "size": 10486578,
    "error": "",
    "itemId": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
    # itemId is not the same as file["id"]
  }
]

`request`

fastapi.Request的一个实例。您可以在迁移页面或fastapi 的文档中了解更多信息。

`task`

表示任务类型的字符串 (str)。如果存在，其值只是__metadata__["task"]的简写；否则为None。

可能的值

[
    "title_generation",
    "tags_generation",
    "emoji_generation",
    "query_generation",
    "image_prompt_generation",
    "autocomplete_generation",
    "function_calling",
    "moa_response_generation"
]

`__task_body__`

一个字典 (dict)，包含完成给定__task__所需的body。如果存在，其值只是__metadata__["task_body"]的简写；否则为None。

其结构与上面的body相同，但会根据需要进行修改，例如使用适当的模型和系统消息等。

`tools`

ToolUserModel实例的列表 (list)。

有关ToolUserModel实例属性的详细信息，请参阅tools.py中的代码。

body​

__user__​

__metadata__​

__model__​

__messages__​

__chat_id__​

__session_id__​

__message_id__​

__event_emitter__​

__event_call__​

__files__​

__request__​

__task__​

__task_body__​

__tools__​