dify/web/app/components/develop/template/template_chat.zh.mdx

import { CodeGroup } from '../code.tsx'
import { Row, Col, Properties, Property, Heading, SubProperty } from '../md.tsx'

# 对话型应用 API

对话应用支持会话持久化，可将之前的聊天记录作为上下进行回答，可适用于聊天/客服 AI 等。

<div>
  ### 基础 URL
  <CodeGroup title="Code" targetCode={props.appDetail.api_base_url}>
    ```javascript
    ```
  </CodeGroup>

  ### 鉴权

  Service API 使用 `API-Key` 进行鉴权。
  <i>**强烈建议开发者把 `API-Key` 放在后端存储，而非分享或者放在客户端存储，以免 `API-Key` 泄露，导致财产损失。**</i>
  所有 API 请求都应在 **`Authorization`** HTTP Header 中包含您的 `API-Key`，如下所示：

  <CodeGroup title="Code">
    ```javascript
      Authorization: Bearer {API_KEY}
    ```
  </CodeGroup>
</div>

---

<Heading
  url='/chat-messages'
  method='POST'
  title='发送对话消息'
  name='#Create-Chat-Message'
/>
<Row>
  <Col>
    创建会话消息。

    ### Request Body

    <Properties>
      <Property name='query' type='string' key='query'>
        用户输入/提问内容。
      </Property>
      <Property name='inputs' type='object' key='inputs'>
        允许传入 App 定义的各变量值。
        inputs 参数包含了多组键值对（Key/Value pairs），每组的键对应一个特定变量，每组的值则是该变量的具体值。
        默认 `{}`
      </Property>
      <Property name='response_mode' type='string' key='response_mode'>
        - `streaming` 流式模式（推荐）。基于 SSE（**[Server-Sent Events](https://developer.mozilla.org/en-US/docs/Web/API/Server-sent_events/Using_server-sent_events)**）实现类似打字机输出方式的流式返回。
        - `blocking` 阻塞模式，等待执行完毕后返回结果。（请求若流程较长可能会被中断）。
        <i>由于 Cloudflare 限制，请求会在 100 秒超时无返回后中断。</i>
        注：Agent模式下不允许blocking。
      </Property>
      <Property name='user' type='string' key='user'>
        用户标识，用于定义终端用户的身份，方便检索、统计。
        由开发者定义规则，需保证用户标识在应用内唯一。
      </Property>
      <Property name='conversation_id' type='string' key='conversation_id'>
      （选填）会话 ID，需要基于之前的聊天记录继续对话，必须传之前消息的 conversation_id。
      </Property>
      <Property name='files' type='array[object]' key='files'>
          上传的文件。
          - `type` (string) 支持类型：图片 `image`（目前仅支持图片格式） 。
          - `transfer_method` (string)  传递方式:
            - `remote_url`: 图片地址。
            - `local_file`: 上传文件。
          - `url` 图片地址。（仅当传递方式为 `remote_url` 时）。
          - `upload_file_id` 上传文件 ID。（仅当传递方式为 `local_file `时）。
      </Property>
      <Property name='auto_generate_name' type='bool' key='auto_generate_name'>
      （选填）自动生成标题，默认 `true`。 若设置为 `false`，则可通过调用会话重命名接口并设置 `auto_generate` 为 `true` 实现异步生成标题。
      </Property>
    </Properties>

    ### Response
    <Properties>
    当 `response_mode` 为 `blocking` 时，返回 ChatCompletionResponse object。
    当 `response_mode` 为 `streaming`时，返回 ChunkChatCompletionResponse object 流式序列。

    ### ChatCompletionResponse

    返回完整的 App 结果，`Content-Type` 为 `application/json`。
    - `message_id` (string) 消息唯一 ID
    - `conversation_id` (string) 会话 ID
    - `mode` (string) App 模式，固定为 chat
    - `answer` (string) 完整回复内容
    - `metadata` (object) 元数据
      - `usage` (Usage) 模型用量信息
      - `retriever_resources` (array[RetrieverResource]) 引用和归属分段列表
    - `created_at` (int) 消息创建时间戳，如：1705395332

    ### ChunkChatCompletionResponse
    返回 App 输出的流式块，`Content-Type` 为 `text/event-stream`。
    每个流式块均为 data: 开头，块之间以 \n\n 即两个换行符分隔，如下所示：
    <CodeGroup>
    ```streaming {{ title: 'Response' }}
    data: {"event": "message", "task_id": "900bbd43-dc0b-4383-a372-aa6e6c414227", "id": "663c5084-a254-4040-8ad3-51f2a3c1a77c", "answer": "Hi", "created_at": 1705398420}\n\n
    ```
    </CodeGroup>

    流式块中根据 event 不同，结构也不同：
    - `event: message` LLM 返回文本块事件，即：完整的文本以分块的方式输出。
      - `task_id` (string) 任务 ID，用于请求跟踪和下方的停止响应接口
      - `message_id` (string) 消息唯一 ID
      - `conversation_id` (string) 会话 ID
      - `answer` (string) LLM 返回文本块内容
      - `created_at` (int) 创建时间戳，如：1705395332
    - `event: agent_message` Agent模式下返回文本块事件，即：在Agent模式下，文章的文本以分块的方式输出（仅Agent模式下使用）
      - `task_id` (string) 任务 ID，用于请求跟踪和下方的停止响应接口
      - `message_id` (string) 消息唯一 ID
      - `conversation_id` (string) 会话 ID
      - `answer` (string) LLM 返回文本块内容
      - `created_at` (int) 创建时间戳，如：1705395332
    - `event: agent_thought` Agent模式下有关Agent思考步骤的相关内容，涉及到工具调用（仅Agent模式下使用）
      - `id` (string) agent_thought ID，每一轮Agent迭代都会有一个唯一的id
      - `task_id` (string) 任务ID，用于请求跟踪下方的停止响应接口
      - `message_id` (string) 消息唯一ID
      - `position` (int) agent_thought在消息中的位置，如第一轮迭代position为1
      - `thought` (string) agent的思考内容
      - `observation` (string) 工具调用的返回结果
      - `tool` (string) 使用的工具列表，以 ; 分割多个工具
      - `tool_input` (string) 工具的输入，JSON格式的字符串(object)。如：`{"dalle3": {"prompt": "a cute cat"}}`
      - `created_at` (int) 创建时间戳，如：1705395332
      - `message_files` (array[string])  当前 `agent_thought` 关联的文件ID
        - `file_id` (string) 文件ID
      - `conversation_id` (string) 会话ID
    - `event: message_file` 文件事件，表示有新文件需要展示
      - `id` (string) 文件唯一ID
      - `type` (string) 文件类型，目前仅为image
      - `belongs_to` (string) 文件归属，user或assistant，该接口返回仅为 `assistant`
      - `url` (string) 文件访问地址
      - `conversation_id`  (string) 会话ID
    - `event: message_end` 消息结束事件，收到此事件则代表流式返回结束。
      - `task_id` (string) 任务 ID，用于请求跟踪和下方的停止响应接口
      - `message_id` (string) 消息唯一 ID
      - `conversation_id` (string) 会话 ID
      - `metadata` (object) 元数据
        - `usage` (Usage) 模型用量信息
        - `retriever_resources` (array[RetrieverResource]) 引用和归属分段列表
    - `event: tts_message` TTS 音频流事件，即：语音合成输出。内容是Mp3格式的音频块，使用 base64 编码后的字符串，播放的时候直接解码即可。(开启自动播放才有此消息)
      - `task_id` (string) 任务 ID，用于请求跟踪和下方的停止响应接口
      - `message_id` (string) 消息唯一 ID
      - `audio` (string) 语音合成之后的音频块使用 Base64 编码之后的文本内容，播放的时候直接 base64 解码送入播放器即可
      - `created_at` (int) 创建时间戳，如：1705395332
    - `event: tts_message_end` TTS 音频流结束事件，收到这个事件表示音频流返回结束。
      - `task_id` (string) 任务 ID，用于请求跟踪和下方的停止响应接口
      - `message_id` (string) 消息唯一 ID
      - `audio` (string) 结束事件是没有音频的，所以这里是空字符串
      - `created_at` (int) 创建时间戳，如：1705395332
    - `event: message_replace` 消息内容替换事件。
      开启内容审查和审查输出内容时，若命中了审查条件，则会通过此事件替换消息内容为预设回复。
      - `task_id` (string) 任务 ID，用于请求跟踪和下方的停止响应接口
      - `message_id` (string) 消息唯一 ID
      - `conversation_id` (string) 会话 ID
      - `answer` (string) 替换内容（直接替换 LLM 所有回复文本）
      - `created_at` (int) 创建时间戳，如：1705395332
    - `event: error`
      流式输出过程中出现的异常会以 stream event 形式输出，收到异常事件后即结束。
      - `task_id` (string) 任务 ID，用于请求跟踪和下方的停止响应接口
      - `message_id` (string) 消息唯一 ID
      - `status` (int) HTTP 状态码
      - `code` (string) 错误码
      - `message` (string) 错误消息
    - `event: ping` 每 10s 一次的 ping 事件，保持连接存活。

    ### Errors
    - 404，对话不存在
    - 400，`invalid_param`，传入参数异常
    - 400，`app_unavailable`，App 配置不可用
    - 400，`provider_not_initialize`，无可用模型凭据配置
    - 400，`provider_quota_exceeded`，模型调用额度不足
    - 400，`model_currently_not_support`，当前模型不可用
    - 400，`completion_request_error`，文本生成失败
    - 500，服务内部异常

    </Properties>
  </Col>
  <Col sticky>

    <CodeGroup title="Request" tag="POST" label="/chat-messages" targetCode={`curl -X POST '${props.appDetail.api_base_url}/chat-messages' \\\n--header 'Authorization: Bearer {api_key}' \\\n--header 'Content-Type: application/json' \\\n--data-raw '{\n    "inputs": ${JSON.stringify(props.inputs)},\n    "query": "What are the specs of the iPhone 13 Pro Max?",\n    "response_mode": "streaming",\n    "conversation_id": "",\n    "user": "abc-123",\n    "files": [\n      {\n        "type": "image",\n        "transfer_method": "remote_url",\n        "url": "https://cloud.dify.ai/logo/logo-site.png"\n      }\n    ]\n}'`}>

    ```bash {{ title: 'cURL' }}
    curl -X POST '${props.appDetail.api_base_url}/chat-messages' \
    -H 'Authorization: Bearer {api_key}' \
    -H 'Content-Type: application/json' \
    --data-raw '{
        "inputs": {
            "name": "dify"
        },
        "query": "What are the specs of the iPhone 13 Pro Max?",
        "conversation_id": "101b4c97-fc2e-463c-90b1-5261a4cdcafb",
        "response_mode": "streaming",
        "user": "abc-123",
        "files": [
          {
            "type": "image",
            "transfer_method": "remote_url",
            "url": "https://cloud.dify.ai/logo/logo-site.png"
          }
        ]
    }'
    ```

    </CodeGroup>
    ### 阻塞模式
    <CodeGroup title="Response">
    ```json {{ title: 'Response' }}
    {
        "event": "message",
        "message_id": "9da23599-e713-473b-982c-4328d4f5c78a",
        "conversation_id": "45701982-8118-4bc5-8e9b-64562b4555f2",
        "mode": "chat",
        "answer": "iPhone 13 Pro Max specs are listed heere:...",
        "metadata": {
            "usage": {
                "prompt_tokens": 1033,
                "prompt_unit_price": "0.001",
                "prompt_price_unit": "0.001",
                "prompt_price": "0.0010330",
                "completion_tokens": 128,
                "completion_unit_price": "0.002",
                "completion_price_unit": "0.001",
                "completion_price": "0.0002560",
                "total_tokens": 1161,
                "total_price": "0.0012890",
                "currency": "USD",
                "latency": 0.7682376249867957
            },
            "retriever_resources": [
                {
                    "position": 1,
                    "dataset_id": "101b4c97-fc2e-463c-90b1-5261a4cdcafb",
                    "dataset_name": "iPhone",
                    "document_id": "8dd1ad74-0b5f-4175-b735-7d98bbbb4e00",
                    "document_name": "iPhone List",
                    "segment_id": "ed599c7f-2766-4294-9d1d-e5235a61270a",
                    "score": 0.98457545,
                    "content": "\"Model\",\"Release Date\",\"Display Size\",\"Resolution\",\"Processor\",\"RAM\",\"Storage\",\"Camera\",\"Battery\",\"Operating System\"\n\"iPhone 13 Pro Max\",\"September 24, 2021\",\"6.7 inch\",\"1284 x 2778\",\"Hexa-core (2x3.23 GHz Avalanche + 4x1.82 GHz Blizzard)\",\"6 GB\",\"128, 256, 512 GB, 1TB\",\"12 MP\",\"4352 mAh\",\"iOS 15\""
                }
            ]
        },
        "created_at": 1705407629
    }
    ```
    </CodeGroup>
    ### 流式模式（基础助手）
    <CodeGroup title="Response">
    ```streaming {{ title: 'Response' }}
      data: {"event": "message", "message_id": "5ad4cb98-f0c7-4085-b384-88c403be6290", "conversation_id": "45701982-8118-4bc5-8e9b-64562b4555f2", "answer": " I", "created_at": 1679586595}
      data: {"event": "message", "message_id": "5ad4cb98-f0c7-4085-b384-88c403be6290", "conversation_id": "45701982-8118-4bc5-8e9b-64562b4555f2", "answer": "'m", "created_at": 1679586595}
      data: {"event": "message", "message_id": "5ad4cb98-f0c7-4085-b384-88c403be6290", "conversation_id": "45701982-8118-4bc5-8e9b-64562b4555f2", "answer": " glad", "created_at": 1679586595}
      data: {"event": "message", "message_id": "5ad4cb98-f0c7-4085-b384-88c403be6290", "conversation_id": "45701982-8118-4bc5-8e9b-64562b4555f2", "answer": " to", "created_at": 1679586595}
      data: {"event": "message", "message_id": : "5ad4cb98-f0c7-4085-b384-88c403be6290", "conversation_id": "45701982-8118-4bc5-8e9b-64562b4555f2", "answer": " meet", "created_at": 1679586595}
      data: {"event": "message", "message_id": : "5ad4cb98-f0c7-4085-b384-88c403be6290", "conversation_id": "45701982-8118-4bc5-8e9b-64562b4555f2", "answer": " you", "created_at": 1679586595}
      data: {"event": "message_end", "id": "5e52ce04-874b-4d27-9045-b3bc80def685", "conversation_id": "45701982-8118-4bc5-8e9b-64562b4555f2", "metadata": {"usage": {"prompt_tokens": 1033, "prompt_unit_price": "0.001", "prompt_price_unit": "0.001", "prompt_price": "0.0010330", "completion_tokens": 135, "completion_unit_price": "0.002", "completion_price_unit": "0.001", "completion_price": "0.0002700", "total_tokens": 1168, "total_price": "0.0013030", "currency": "USD", "latency": 1.381760165997548, "retriever_resources": [{"position": 1, "dataset_id": "101b4c97-fc2e-463c-90b1-5261a4cdcafb", "dataset_name": "iPhone", "document_id": "8dd1ad74-0b5f-4175-b735-7d98bbbb4e00", "document_name": "iPhone List", "segment_id": "ed599c7f-2766-4294-9d1d-e5235a61270a", "score": 0.98457545, "content": "\"Model\",\"Release Date\",\"Display Size\",\"Resolution\",\"Processor\",\"RAM\",\"Storage\",\"Camera\",\"Battery\",\"Operating System\"\n\"iPhone 13 Pro Max\",\"September 24, 2021\",\"6.7 inch\",\"1284 x 2778\",\"Hexa-core (2x3.23 GHz Avalanche + 4x1.82 GHz Blizzard)\",\"6 GB\",\"128, 256, 512 GB, 1TB\",\"12 MP\",\"4352 mAh\",\"iOS 15\""}]}}}
      data: {"event": "tts_message", "conversation_id": "23dd85f3-1a41-4ea0-b7a9-062734ccfaf9", "message_id": "a8bdc41c-13b2-4c18-bfd9-054b9803038c", "created_at": 1721205487, "task_id": "3bf8a0bb-e73b-4690-9e66-4e429bad8ee7", "audio": "qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq"}
      data: {"event": "tts_message_end", "conversation_id": "23dd85f3-1a41-4ea0-b7a9-062734ccfaf9", "message_id": "a8bdc41c-13b2-4c18-bfd9-054b9803038c", "created_at": 1721205487, "task_id": "3bf8a0bb-e73b-4690-9e66-4e429bad8ee7", "audio": ""}
    ```
    </CodeGroup>

    ### 流式模式（智能助手）
    <CodeGroup title="Response">
    ```streaming {{ title: 'Response' }}
      data: {"event": "agent_thought", "id": "8dcf3648-fbad-407a-85dd-73a6f43aeb9f", "task_id": "9cf1ddd7-f94b-459b-b942-b77b26c59e9b", "message_id": "1fb10045-55fd-4040-99e6-d048d07cbad3", "position": 1, "thought": "", "observation": "", "tool": "", "tool_input": "", "created_at": 1705639511, "message_files": [], "conversation_id": "c216c595-2d89-438c-b33c-aae5ddddd142"}
      data: {"event": "agent_thought", "id": "8dcf3648-fbad-407a-85dd-73a6f43aeb9f", "task_id": "9cf1ddd7-f94b-459b-b942-b77b26c59e9b", "message_id": "1fb10045-55fd-4040-99e6-d048d07cbad3", "position": 1, "thought": "", "observation": "", "tool": "dalle3", "tool_input": "{\"dalle3\": {\"prompt\": \"cute Japanese anime girl with white hair, blue eyes, bunny girl suit\"}}", "created_at": 1705639511, "message_files": [], "conversation_id": "c216c595-2d89-438c-b33c-aae5ddddd142"}
      data: {"event": "message_file", "id": "d75b7a5c-ce5e-442e-ab1b-d6a5e5b557b0", "type": "image", "belongs_to": "assistant", "url": "http://127.0.0.1:5001/files/tools/d75b7a5c-ce5e-442e-ab1b-d6a5e5b557b0.png?timestamp=1705639526&nonce=70423256c60da73a9c96d1385ff78487&sign=7B5fKV9890YJuqchQvrABvW4AIupDvDvxGdu1EOJT94=", "conversation_id": "c216c595-2d89-438c-b33c-aae5ddddd142"}
      data: {"event": "agent_thought", "id": "8dcf3648-fbad-407a-85dd-73a6f43aeb9f", "task_id": "9cf1ddd7-f94b-459b-b942-b77b26c59e9b", "message_id": "1fb10045-55fd-4040-99e6-d048d07cbad3", "position": 1, "thought": "", "observation": "image has been created and sent to user already, you should tell user to check it now.", "tool": "dalle3", "tool_input": "{\"dalle3\": {\"prompt\": \"cute Japanese anime girl with white hair, blue eyes, bunny girl suit\"}}", "created_at": 1705639511, "message_files": ["d75b7a5c-ce5e-442e-ab1b-d6a5e5b557b0"], "conversation_id": "c216c595-2d89-438c-b33c-aae5ddddd142"}
      data: {"event": "agent_thought", "id": "67a99dc1-4f82-42d3-b354-18d4594840c8", "task_id": "9cf1ddd7-f94b-459b-b942-b77b26c59e9b", "message_id": "1fb10045-55fd-4040-99e6-d048d07cbad3", "position": 2, "thought": "", "observation": "", "tool": "", "tool_input": "", "created_at": 1705639511, "message_files": [], "conversation_id": "c216c595-2d89-438c-b33c-aae5ddddd142"}
      data: {"event": "agent_message", "id": "1fb10045-55fd-4040-99e6-d048d07cbad3", "task_id": "9cf1ddd7-f94b-459b-b942-b77b26c59e9b", "message_id": "1fb10045-55fd-4040-99e6-d048d07cbad3", "answer": "I have created an image of a cute Japanese", "created_at": 1705639511, "conversation_id": "c216c595-2d89-438c-b33c-aae5ddddd142"}
      data: {"event": "agent_message", "id": "1fb10045-55fd-4040-99e6-d048d07cbad3", "task_id": "9cf1ddd7-f94b-459b-b942-b77b26c59e9b", "message_id": "1fb10045-55fd-4040-99e6-d048d07cbad3", "answer": " anime girl with white hair and blue", "created_at": 1705639511, "conversation_id": "c216c595-2d89-438c-b33c-aae5ddddd142"}
      data: {"event": "agent_message", "id": "1fb10045-55fd-4040-99e6-d048d07cbad3", "task_id": "9cf1ddd7-f94b-459b-b942-b77b26c59e9b", "message_id": "1fb10045-55fd-4040-99e6-d048d07cbad3", "answer": " eyes wearing a bunny girl" ,"created_at": 1705639511, "conversation_id": "c216c595-2d89-438c-b33c-aae5ddddd142"}
      data: {"event": "agent_message", "id": "1fb10045-55fd-4040-99e6-d048d07cbad3", "task_id": "9cf1ddd7-f94b-459b-b942-b77b26c59e9b", "message_id": "1fb10045-55fd-4040-99e6-d048d07cbad3", "answer": " suit .", "created_at": 1705639511, "conversation_id": "c216c595-2d89-438c-b33c-aae5ddddd142"}
      data: {"event": "agent_thought", "id": "67a99dc1-4f82-42d3-b354-18d4594840c8", "task_id": "9cf1ddd7-f94b-459b-b942-b77b26c59e9b", "message_id": "1fb10045-55fd-4040-99e6-d048d07cbad3", "position": 2, "thought": "I have created an image of a cute Japanese anime girl with white hair and blue eyes wearing a bunny girl suit.", "observation": "", "tool": "", "tool_input": "", "created_at": 1705639511, "message_files": [], "conversation_id": "c216c595-2d89-438c-b33c-aae5ddddd142"}
      data: {"event": "message_end", "task_id": "9cf1ddd7-f94b-459b-b942-b77b26c59e9b", "id": "1fb10045-55fd-4040-99e6-d048d07cbad3", "message_id": "1fb10045-55fd-4040-99e6-d048d07cbad3", "conversation_id": "c216c595-2d89-438c-b33c-aae5ddddd142", "metadata": {"usage": {"prompt_tokens": 305, "prompt_unit_price": "0.001", "prompt_price_unit": "0.001", "prompt_price": "0.0003050", "completion_tokens": 97, "completion_unit_price": "0.002", "completion_price_unit": "0.001", "completion_price": "0.0001940", "total_tokens": 184, "total_price": "0.0002290", "currency": "USD", "latency": 1.771092874929309}}}
      data: {"event": "tts_message", "conversation_id": "23dd85f3-1a41-4ea0-b7a9-062734ccfaf9", "message_id": "a8bdc41c-13b2-4c18-bfd9-054b9803038c", "created_at": 1721205487, "task_id": "3bf8a0bb-e73b-4690-9e66-4e429bad8ee7", "audio": "qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq"}
      data: {"event": "tts_message_end", "conversation_id": "23dd85f3-1a41-4ea0-b7a9-062734ccfaf9", "message_id": "a8bdc41c-13b2-4c18-bfd9-054b9803038c", "created_at": 1721205487, "task_id": "3bf8a0bb-e73b-4690-9e66-4e429bad8ee7", "audio": ""}
    ```
    </CodeGroup>
  </Col>
</Row>

---
<Heading
  url='/files/upload'
  method='POST'
  title='上传文件'
  name='#files-upload'
/>
<Row>
  <Col>
    上传文件（目前仅支持图片）并在发送消息时使用，可实现图文多模态理解。
    支持 png, jpg, jpeg, webp, gif 格式。
    <i>上传的文件仅供当前终端用户使用。</i>

    ### Request Body
    该接口需使用  `multipart/form-data` 进行请求。
    <Properties>
      <Property name='file' type='file' key='file'>
        要上传的文件。
      </Property>
      <Property name='user' type='string' key='user'>
          用户标识，用于定义终端用户的身份，必须和发送消息接口传入 user 保持一致。
      </Property>
    </Properties>

    ### Response
    成功上传后，服务器会返回文件的 ID 和相关信息。
    - `id` (uuid) ID
    - `name` (string) 文件名
    - `size` (int) 文件大小（byte）
    - `extension` (string) 文件后缀
    - `mime_type` (string) 文件 mime-type
    - `created_by` (uuid) 上传人 ID
    - `created_at` (timestamp) 上传时间

    ### Errors
    - 400，`no_file_uploaded`，必须提供文件
    - 400，`too_many_files`，目前只接受一个文件
    - 400，`unsupported_preview`，该文件不支持预览
    - 400，`unsupported_estimate`，该文件不支持估算
    - 413，`file_too_large`，文件太大
    - 415，`unsupported_file_type`，不支持的扩展名，当前只接受文档类文件
    - 503，`s3_connection_failed`，无法连接到 S3 服务
    - 503，`s3_permission_denied`，无权限上传文件到 S3
    - 503，`s3_file_too_large`，文件超出 S3 大小限制
  </Col>
  <Col sticky>

    <CodeGroup title="Request" tag="POST" label="/files/upload" targetCode={`curl -X POST '${props.appDetail.api_base_url}/files/upload' \\\n--header 'Authorization: Bearer {api_key}' \\\n--form 'file=@localfile;type=image/[png|jpeg|jpg|webp|gif] \\\n--form 'user=abc-123'`}>

    ```bash {{ title: 'cURL' }}
    curl -X POST '${props.appDetail.api_base_url}/files/upload' \
    --header 'Authorization: Bearer {api_key}' \
    --form 'file=@"/path/to/file"'
    ```

    </CodeGroup>

    <CodeGroup title="Response">
    ```json {{ title: 'Response' }}
    {
      "id": "72fa9618-8f89-4a37-9b33-7e1178a24a67",
      "name": "example.png",
      "size": 1024,
      "extension": "png",
      "mime_type": "image/png",
      "created_by": 123,
      "created_at": 1577836800,
    }
    ```
    </CodeGroup>
  </Col>
</Row>
---
<Heading
  url='/chat-messages/:task_id/stop'
  method='POST'
  title='停止响应'
  name='#Stop'
/>
<Row>
  <Col>
  仅支持流式模式。
  ### Path
  - `task_id` (string) 任务 ID，可在流式返回 Chunk 中获取

  ### Request Body
  - `user` (string) Required
    用户标识，用于定义终端用户的身份，必须和发送消息接口传入 user 保持一致。
  ### Response
  - `result` (string) 固定返回 success
  </Col>
  <Col sticky>
  <CodeGroup title="Request" tag="POST" label="/chat-messages/:task_id/stop" targetCode={`curl -X POST '${props.appDetail.api_base_url}/chat-messages/:task_id/stop' \\\n-H 'Authorization: Bearer {api_key}' \\\n-H 'Content-Type: application/json' \\\n--data-raw '{ "user": "abc-123"}'`}>
    ```bash {{ title: 'cURL' }}
    curl -X POST '${props.appDetail.api_base_url}/chat-messages/:task_id/stop' \
    -H 'Authorization: Bearer {api_key}' \
    -H 'Content-Type: application/json' \
    --data-raw '{
        "user": "abc-123"
    }'
    ```

    </CodeGroup>

    <CodeGroup title="Response">
    ```json {{ title: 'Response' }}
    {
      "result": "success"
    }
    ```
    </CodeGroup>
  </Col>
</Row>
---

<Heading
  url='/messages/:message_id/feedbacks'
  method='POST'
  title='消息反馈（点赞）'
  name='#feedbacks'
/>
<Row>
  <Col>
    消息终端用户反馈、点赞，方便应用开发者优化输出预期。

    ### Path Params
    <Properties>
      <Property name='message_id' type='string' key='message_id'>
       消息 ID
      </Property>
    </Properties>

    ### Request Body

    <Properties>
      <Property name='rating' type='string' key='rating'>
         点赞 like, 点踩 dislike,  撤销点赞 null
      </Property>
      <Property name='user' type='string' key='user'>
          用户标识，由开发者定义规则，需保证用户标识在应用内唯一。
      </Property>
    </Properties>

    ### Response
    - `result` (string) 固定返回 success
  </Col>
  <Col sticky>

    <CodeGroup title="Request" tag="POST" label="/messages/:message_id/feedbacks" targetCode={`curl -X POST '${props.appDetail.api_base_url}/messages/:message_id/feedbacks \\\n--header 'Authorization: Bearer {api_key}' \\\n--header 'Content-Type: application/json' \\\n--data-raw '{\n    "rating": "like",\n    "user": "abc-123"\n}'`}>

    ```bash {{ title: 'cURL' }}
    curl -X POST '${props.appDetail.api_base_url}/messages/:message_id/feedbacks' \
    --header 'Authorization: Bearer {api_key}' \
    --header 'Content-Type: application/json' \
    --data-raw '{
        "rating": "like",
        "user": "abc-123"
    }'
    ```

    </CodeGroup>

    <CodeGroup title="Response">
    ```json {{ title: 'Response' }}
    {
      "result": "success"
    }
    ```
    </CodeGroup>
  </Col>
</Row>

---

<Heading
  url='/messages/{message_id}/suggested'
  method='GET'
  title='获取下一轮建议问题列表'
  name='#suggested'
/>
<Row>
  <Col>
    获取下一轮建议问题列表。

    ### Path Params

    <Properties>
      <Property name='message_id' type='string' key='message_id'>
        Message ID
      </Property>
    </Properties>

    ### Query
    <Properties>
      <Property name='user' type='string' key='user'>
        用户标识，由开发者定义规则，需保证用户标识在应用内唯一。
      </Property>
    </Properties>
  </Col>
  <Col sticky>

    <CodeGroup title="Request" tag="GET" label="/messages/{message_id}/suggested" targetCode={`curl --location --request GET '${props.appDetail.api_base_url}/messages/{message_id}/suggested?user=abc-123 \\\n--header 'Authorization: Bearer ENTER-YOUR-SECRET-KEY' \\\n--header 'Content-Type: application/json'`}>

    ```bash {{ title: 'cURL' }}
    curl --location --request GET '${props.appDetail.api_base_url}/messages/{message_id}/suggested' \
    --header 'Authorization: Bearer ENTER-YOUR-SECRET-KEY' \
    --header 'Content-Type: application/json' \
    ```

    </CodeGroup>

    <CodeGroup title="Response">
    ```json {{ title: 'Response' }}
    {
      "result": "success",
      "data": [
            "a",
            "b",
            "c"
        ]
    }
    ```
    </CodeGroup>
  </Col>
</Row>

---

---

<Heading
  url='/messages'
  method='GET'
  title='获取会话历史消息'
  name='#messages'
/>
<Row>
  <Col>
    滚动加载形式返回历史聊天记录，第一页返回最新  `limit` 条，即：倒序返回。

    ### Query

    <Properties>
      <Property name='conversation_id' type='string' key='conversation_id'>
        会话 ID
      </Property>
      <Property name='user' type='string' key='user'>
        用户标识，由开发者定义规则，需保证用户标识在应用内唯一。
      </Property>
      <Property name='first_id' type='string' key='first_id'>
        当前页第一条聊天记录的 ID，默认 null
      </Property>
      <Property name='limit' type='int' key='limit'>
        一次请求返回多少条聊天记录，默认 20 条。
      </Property>
    </Properties>

    ### Response
    - `data` (array[object])  消息列表
    - `id`  (string) 消息 ID
    - `conversation_id` (string)  会话 ID
    - `inputs` (array[object]) 用户输入参数。
    - `query`  (string) 用户输入 / 提问内容。
    - `message_files` (array[object]) 消息文件
      - `id` (string) ID
      - `type` (string) 文件类型，image 图片
      - `url` (string) 预览图片地址
      - `belongs_to` (string) 文件归属方，user 或 assistant
      - `agent_thoughts` (array[object]) Agent思考内容（仅Agent模式下不为空）
        - `id` (string) agent_thought ID，每一轮Agent迭代都会有一个唯一的id
        - `message_id` (string) 消息唯一ID
        - `position` (int) agent_thought在消息中的位置，如第一轮迭代position为1
        - `thought` (string) agent的思考内容
        - `observation` (string) 工具调用的返回结果
        - `tool` (string) 使用的工具列表，以 ; 分割多个工具
        - `tool_input` (string) 工具的输入，JSON格式的字符串(object)。如：`{"dalle3": {"prompt": "a cute cat"}}`
        - `created_at` (int) 创建时间戳，如：1705395332
        - `message_files` (array[string])  当前agent_thought 关联的文件ID
          - `file_id` (string) 文件ID
        - `conversation_id` (string) 会话ID
    - `answer` (string)  回答消息内容
    - `created_at`  (timestamp) 创建时间
    - `feedback` (object) 反馈信息
      - `rating` (string) 点赞 like / 点踩 dislike
    - `retriever_resources` (array[RetrieverResource]) 引用和归属分段列表
  - `has_more` (bool) 是否存在下一页
  - `limit` (int) 返回条数，若传入超过系统限制，返回系统限制数量
  </Col>
  <Col sticky>
    ### Request Example
    <CodeGroup title="Request" tag="GET" label="/messages" targetCode={`curl -X GET '${props.appDetail.api_base_url}/messages?user=abc-123&conversation_id=' \\\n--header 'Authorization: Bearer {api_key}'`}>

    ```bash {{ title: 'cURL' }}
    curl -X GET '${props.appDetail.api_base_url}/messages?user=abc-123&conversation_id='
    --header 'Authorization: Bearer {api_key}'
    ```

    </CodeGroup>

    ### Response Example(基础助手)
    <CodeGroup title="Response">
    ```json {{ title: 'Response' }}
    {
    "limit": 20,
    "has_more": false,
    "data": [
        {
            "id": "a076a87f-31e5-48dc-b452-0061adbbc922",
            "conversation_id": "cd78daf6-f9e4-4463-9ff2-54257230a0ce",
            "inputs": {
                "name": "dify"
            },
            "query": "iphone 13 pro",
            "answer": "The iPhone 13 Pro, released on September 24, 2021, features a 6.1-inch display with a resolution of 1170 x 2532. It is equipped with a Hexa-core (2x3.23 GHz Avalanche + 4x1.82 GHz Blizzard) processor, 6 GB of RAM, and offers storage options of 128 GB, 256 GB, 512 GB, and 1 TB. The camera is 12 MP, the battery capacity is 3095 mAh, and it runs on iOS 15.",
            "message_files": [],
            "feedback": null,
            "retriever_resources": [
                {
                    "position": 1,
                    "dataset_id": "101b4c97-fc2e-463c-90b1-5261a4cdcafb",
                    "dataset_name": "iPhone",
                    "document_id": "8dd1ad74-0b5f-4175-b735-7d98bbbb4e00",
                    "document_name": "iPhone List",
                    "segment_id": "ed599c7f-2766-4294-9d1d-e5235a61270a",
                    "score": 0.98457545,
                    "content": "\"Model\",\"Release Date\",\"Display Size\",\"Resolution\",\"Processor\",\"RAM\",\"Storage\",\"Camera\",\"Battery\",\"Operating System\"\n\"iPhone 13 Pro Max\",\"September 24, 2021\",\"6.7 inch\",\"1284 x 2778\",\"Hexa-core (2x3.23 GHz Avalanche + 4x1.82 GHz Blizzard)\",\"6 GB\",\"128, 256, 512 GB, 1TB\",\"12 MP\",\"4352 mAh\",\"iOS 15\""
                }
            ],
            "agent_thoughts": [],
            "created_at": 1705569239
        }
      ]
    }
    ```
    </CodeGroup>

    ### Response Example(智能助手)
    <CodeGroup title="Response">
    ```json {{ title: 'Response' }}
    {
    "limit": 20,
    "has_more": false,
    "data": [
        {
            "id": "d35e006c-7c4d-458f-9142-be4930abdf94",
            "conversation_id": "957c068b-f258-4f89-ba10-6e8a0361c457",
            "inputs": {},
            "query": "draw a cat",
            "answer": "I have generated an image of a cat for you. Please check your messages to view the image.",
            "message_files": [
                {
                    "id": "976990d2-5294-47e6-8f14-7356ba9d2d76",
                    "type": "image",
                    "url": "http://127.0.0.1:5001/files/tools/976990d2-5294-47e6-8f14-7356ba9d2d76.png?timestamp=1705988524&nonce=55df3f9f7311a9acd91bf074cd524092&sign=z43nMSO1L2HBvoqADLkRxr7Biz0fkjeDstnJiCK1zh8=",
                    "belongs_to": "assistant"
                }
            ],
            "feedback": null,
            "retriever_resources": [],
            "created_at": 1705988187,
            "agent_thoughts": [
                {
                    "id": "592c84cf-07ee-441c-9dcc-ffc66c033469",
                    "chain_id": null,
                    "message_id": "d35e006c-7c4d-458f-9142-be4930abdf94",
                    "position": 1,
                    "thought": "",
                    "tool": "dalle2",
                    "tool_input": "{\"dalle2\": {\"prompt\": \"cat\"}}",
                    "created_at": 1705988186,
                    "observation": "image has been created and sent to user already, you should tell user to check it now.",
                    "message_files": [
                        "976990d2-5294-47e6-8f14-7356ba9d2d76"
                    ]
                },
                {
                    "id": "73ead60d-2370-4780-b5ed-532d2762b0e5",
                    "chain_id": null,
                    "message_id": "d35e006c-7c4d-458f-9142-be4930abdf94",
                    "position": 2,
                    "thought": "I have generated an image of a cat for you. Please check your messages to view the image.",
                    "tool": "",
                    "tool_input": "",
                    "created_at": 1705988199,
                    "observation": "",
                    "message_files": []
                }
            ]
        }
        ]
    }
    ```
    </CodeGroup>
  </Col>
</Row>

---

<Heading
  url='/conversations'
  method='GET'
  title='获取会话列表'
  name='#conversations'
/>
<Row>
  <Col>
    获取当前用户的会话列表，默认返回最近的 20 条。

    ### Query

    <Properties>
      <Property name='user' type='string' key='user'>
        用户标识，由开发者定义规则，需保证用户标识在应用内唯一。
      </Property>
      <Property name='last_id' type='string' key='last_id'>
        当前页最后面一条记录的 ID，默认 null
      </Property>
      <Property name='limit' type='int' key='limit'>
        一次请求返回多少条记录
      </Property>
      <Property name='pinned' type='bool' key='pinned'>
        只返回置顶 true，只返回非置顶 false
      </Property>
    </Properties>

    ### Response
    - `data` (array[object]) 会话列表
      - `id`  (string) 会话 ID
      - `name`  (string) 会话名称，默认为会话中用户最开始问题的截取。
      - `inputs` (array[object]) 用户输入参数。
      - `introduction` (string) 开场白
      - `created_at` (timestamp) 创建时间
    - `has_more` (bool)
    - `limit` (int) 返回条数，若传入超过系统限制，返回系统限制数量

  </Col>
  <Col sticky>

    <CodeGroup title="Request" tag="GET" label="/conversations" targetCode={`curl -X GET '${props.appDetail.api_base_url}/conversations?user=abc-123&last_id=&limit=20'\\\n--header 'Authorization: Bearer {api_key}'`}>

    ```bash {{ title: 'cURL' }}
    curl -X GET '${props.appDetail.api_base_url}/conversations?user=abc-123&last_id=&limit=20' \
    --header 'Authorization: Bearer {api_key}'
    ```

    </CodeGroup>

    <CodeGroup title="Response">
    ```json {{ title: 'Response' }}
    {
      "limit": 20,
      "has_more": false,
      "data": [
        {
          "id": "10799fb8-64f7-4296-bbf7-b42bfbe0ae54",
          "name": "New chat",
          "inputs": {
              "book": "book",
              "myName": "Lucy"
          },
          "status": "normal",
          "created_at": 1679667915
        },
        {
          "id": "hSIhXBhNe8X1d8Et"
          // ...
        }
      ]
    }
    ```
    </CodeGroup>
  </Col>
</Row>

---
<Heading
  url='/conversations/:conversation_id'
  method='DELETE'
  title='删除会话'
  name='#delete'
/>
<Row>
  <Col>
    删除会话。

    ### Path
    - `conversation_id` (string) 会话 ID

    ### Request Body

    <Properties>
      <Property name='user' type='string' key='user'>
        用户标识，由开发者定义规则，需保证用户标识在应用内唯一。
      </Property>
    </Properties>

    ### Response
    - `result` (string) 固定返回 success
  </Col>
  <Col sticky>

    <CodeGroup title="Request" tag="DELETE" label="/conversations/:conversation_id" targetCode={`curl -X DELETE '${props.appDetail.api_base_url}/conversations/:conversation_id' \\\n--header 'Authorization: Bearer {api_key}' \\\n--header 'Content-Type: application/json' \\\n--data-raw '{ \n "user": "abc-123"\n}'`}>

    ```bash {{ title: 'cURL' }}
        curl -X DELETE '${props.appDetail.api_base_url}/conversations/{convsation_id}' \
        --header 'Content-Type: application/json' \
        --header 'Accept: application/json' \
        --header 'Authorization: Bearer {api_key}' \
        --data '{
            "user": "abc-123"
        }'
      ```

    </CodeGroup>

    <CodeGroup title="Response">
    ```json {{ title: 'Response' }}
    {
      "result": "success"
    }
    ```
    </CodeGroup>
  </Col>
</Row>

---

<Heading
  url='/conversations/:conversation_id/name'
  method='POST'
  title='会话重命名'
  name='#rename'
/>
<Row>
  <Col>
    对会话进行重命名，会话名称用于显示在支持多会话的客户端上。

    ### Request Body

    <Properties>
      <Property name='name' type='string' key='name'>
        名称，若 `auto_generate` 为 `true` 时，该参数可不传。
      </Property>
      <Property name='auto_generate' type='string' key='auto_generate'>
        自动生成标题，默认 false。
      </Property>
      <Property name='user' type='string' key='user'>
        用户标识，由开发者定义规则，需保证用户标识在应用内唯一。
      </Property>
    </Properties>

    ### Response
    - `id`  (string) 会话 ID
    - `name`  (string) 会话名称
    - `inputs` array[object] 用户输入参数。
    - `introduction` (string) 开场白
    - `created_at` (timestamp) 创建时间
  </Col>
  <Col sticky>

    <CodeGroup title="Request" tag="POST" label="/conversations/:conversation_id/name" targetCode={`curl -X POST '${props.appDetail.api_base_url}/conversations/name' \\\n--header 'Authorization: Bearer {api_key}' \\\n--header 'Content-Type: application/json' \\\n--data-raw '{ \n "name": "", \n "user": "abc-123"\n}'`}>

    ```bash {{ title: 'cURL' }}
    curl -X POST '${props.appDetail.api_base_url}/conversations/:conversation_id/name' \
    --header 'Authorization: Bearer {api_key}' \
    --header 'Content-Type: application/json' \
    --data-raw '{
        "name": "",
        "user": "abc-123"
    }'
    ```

    </CodeGroup>

    <CodeGroup title="Response">
    ```json {{ title: 'Response' }}
    {
      "result": "success"
    }
    ```
    </CodeGroup>
  </Col>
</Row>

---

<Heading
  url='/audio-to-text'
  method='POST'
  title='语音转文字'
  name='#audio'
/>
<Row>
  <Col>
    ### Request Body
    该接口需使用 `multipart/form-data` 进行请求。
    <Properties>
      <Property name='file' type='file' key='file'>
        语音文件。
        支持格式：`['mp3', 'mp4', 'mpeg', 'mpga', 'm4a', 'wav', 'webm']`
        文件大小限制：15MB
      </Property>
      <Property name='user' type='string' key='user'>
        用户标识，由开发者定义规则，需保证用户标识在应用内唯一。
      </Property>
    </Properties>

    ### Response
    - `text` (string) 输出文字
  </Col>
  <Col sticky>

    <CodeGroup title="Request" tag="POST" label="/audio-to-text" targetCode={`curl -X POST '${props.appDetail.api_base_url}/audio-to-text' \\\n--header 'Authorization: Bearer {api_key}' \\\n--form 'file=@localfile;type=audio/[mp3|mp4|mpeg|mpga|m4a|wav|webm]`}>

    ```bash {{ title: 'cURL' }}
    curl -X POST '${props.appDetail.api_base_url}/conversations/name' \
    --header 'Authorization: Bearer {api_key}' \
    --form 'file=@localfile;type=audio/mp3'
    ```

    </CodeGroup>

    <CodeGroup title="Response">
    ```json {{ title: 'Response' }}
    {
      "text": "hello"
    }
    ```
    </CodeGroup>
  </Col>
</Row>

---

<Heading
  url='/text-to-audio'
  method='POST'
  title='文字转语音'
  name='#audio'
/>
<Row>
  <Col>
    文字转语音。

    ### Request Body

    <Properties>
      <Property name='message_id' type='str' key='text'>
        Dify 生成的文本消息，那么直接传递生成的message-id 即可，后台会通过 message_id 查找相应的内容直接合成语音信息。如果同时传 message_id 和 text，优先使用 message_id。
      </Property>
      <Property name='text' type='str' key='text'>
        语音生成内容。如果没有传 message-id的话，则会使用这个字段的内容
      </Property>
      <Property name='user' type='string' key='user'>
        用户标识，由开发者定义规则，需保证用户标识在应用内唯一。
      </Property>
    </Properties>
  </Col>
  <Col sticky>

    <CodeGroup title="Request" tag="POST" label="/text-to-audio" targetCode={`curl --location --request POST '${props.appDetail.api_base_url}/text-to-audio' \\\n--header 'Authorization: Bearer ENTER-YOUR-SECRET-KEY' \\\n--form 'text=你好Dify;user=abc-123;message_id=5ad4cb98-f0c7-4085-b384-88c403be6290`}>

    ```bash {{ title: 'cURL' }}
    curl --location --request POST '${props.appDetail.api_base_url}/text-to-audio' \
    --header 'Authorization: Bearer ENTER-YOUR-SECRET-KEY' \
    --form 'file=你好Dify;user=abc-123;message_id=5ad4cb98-f0c7-4085-b384-88c403be6290'
    ```

    </CodeGroup>

    <CodeGroup title="headers">
    ```json {{ title: 'headers' }}
    {
      "Content-Type": "audio/wav"
    }
    ```
    </CodeGroup>
  </Col>
</Row>

---

<Heading
  url='/parameters'
  method='GET'
  title='获取应用配置信息'
  name='#parameters'
/>
<Row>
  <Col>
    用于进入页面一开始，获取功能开关、输入参数名称、类型及默认值等使用。

    ### Query

    <Properties>
      <Property name='user' type='string' key='user'>
        用户标识，由开发者定义规则，需保证用户标识在应用内唯一。
      </Property>
    </Properties>

    ### Response
    - `opening_statement` (string) 开场白
    - `suggested_questions` (array[string]) 开场推荐问题列表
    - `suggested_questions_after_answer` (object) 启用回答后给出推荐问题。
      - `enabled` (bool) 是否开启
    - `speech_to_text` (object) 语音转文本
      - `enabled` (bool) 是否开启
    - `retriever_resource` (object) 引用和归属
      - `enabled` (bool) 是否开启
    - `annotation_reply` (object) 标记回复
      - `enabled` (bool) 是否开启
    - `user_input_form` (array[object]) 用户输入表单配置
      - `text-input` (object) 文本输入控件
        - `label` (string) 控件展示标签名
        - `variable` (string) 控件 ID
        - `required` (bool) 是否必填
        - `default` (string) 默认值
      - `paragraph` (object) 段落文本输入控件
        - `label` (string) 控件展示标签名
        - `variable` (string) 控件 ID
        - `required` (bool) 是否必填
        - `default` (string) 默认值
      - `select` (object) 下拉控件
        - `label` (string) 控件展示标签名
        - `variable` (string) 控件 ID
        - `required` (bool) 是否必填
        - `default` (string) 默认值
        - `options` (array[string]) 选项值
    - `file_upload` (object) 文件上传配置
      - `image` (object) 图片设置
        当前仅支持图片类型：`png`, `jpg`, `jpeg`, `webp`, `gif`
        - `enabled` (bool) 是否开启
        - `number_limits` (int) 图片数量限制，默认 3
        - `transfer_methods` (array[string]) 传递方式列表，remote_url , local_file，必选一个
    - `system_parameters` (object) 系统参数
      - `image_file_size_limit` (string) 图片文件上传大小限制（MB）
  </Col>
  <Col sticky>

    <CodeGroup title="Request" tag="GET" label="/parameters" targetCode={` curl -X GET '${props.appDetail.api_base_url}/parameters'\\\n--header 'Authorization: Bearer {api_key}'`}>

    ```bash {{ title: 'cURL' }}
    curl -X GET '${props.appDetail.api_base_url}/parameters?user=abc-123' \
    --header 'Authorization: Bearer {api_key}'
    ```

    </CodeGroup>

    <CodeGroup title="Response">
    ```json {{ title: 'Response' }}
    {
      "introduction": "nice to meet you",
      "user_input_form": [
        {
          "text-input": {
            "label": "a",
            "variable": "a",
            "required": true,
            "max_length": 48,
            "default": ""
          }
        },
        {
          // ...
        }
      ],
      "file_upload": {
        "image": {
          "enabled": true,
          "number_limits": 3,
          "transfer_methods": [
            "remote_url",
            "local_file"
          ]
        }
      }
    }
    ```
    </CodeGroup>
  </Col>
</Row>

---

<Heading
  url='/meta'
  method='GET'
  title='获取应用Meta信息'
  name='#meta'
/>
<Row>
  <Col>
  用于获取工具icon
  ### Query
    <Properties>

   <Property name='user' type='string' key='user'>
      用户标识，由开发者定义规则，需保证用户标识在应用内唯一。
    </Property>
      </Properties>
  ### Response
  - `tool_icons`(object[string]) 工具图标
    - `工具名称` (string)
      - `icon` (object|string)
        - (object) 图标
          - `background` (string) hex格式的背景色
          - `content`(string) emoji
        - (string) 图标URL
  </Col>
  <Col>
  <CodeGroup title="Request" tag="POST" label="/meta" targetCode={`curl -X GET '${props.appDetail.api_base_url}/meta?user=abc-123' \\\n-H 'Authorization: Bearer {api_key}'`}>
    ```bash {{ title: 'cURL' }}
    curl -X GET '${props.appDetail.api_base_url}/meta?user=abc-123' \
    -H 'Authorization: Bearer {api_key}'
    ```

    </CodeGroup>

    <CodeGroup title="Response">
    ```json {{ title: 'Response' }}
    {
      "tool_icons": {
          "dalle2": "https://cloud.dify.ai/console/api/workspaces/current/tool-provider/builtin/dalle/icon",
          "api_tool": {
              "background": "#252525",
              "content": "\ud83d\ude01"
          }
      }
    }
    ```
    </CodeGroup>
  </Col>
</Row>