> ## Documentation Index
> Fetch the complete documentation index at: https://docs.veadk.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# 读取最新制品

> 省略 version 时返回最新版本的 Part，提供 version 查询参数时返回指定版本；制品或版本不存在时返回 404

省略 `version` 查询参数时读取最新版本，也可通过 `?version=0` 指定版本。版本号来自保存响应或制品版本列表，不是文件名的一部分

响应为 `Part` 对象。内容可能位于 `text` 或 `inlineData`；读取二进制内容时应按 `mimeType` 解释解码后的数据，不要将整个响应直接保存为原文件


## OpenAPI

````yaml productions/api-reference/openapi/zh/agent-api-server.json GET /apps/{app_name}/users/{user_id}/sessions/{session_id}/artifacts/{artifact_name}
openapi: 3.1.0
info:
  title: Agent API Server
  version: google-adk 2.2.0
  description: 基于 Google ADK 2.2.0 的公开 HTTP 接口；/dev 路由仅在启用开发界面的服务中可用
servers:
  - url: http://localhost:8000
    description: 本地服务
security: []
tags:
  - name: 服务与应用
  - name: 会话
  - name: 智能体运行
  - name: 制品
  - name: 记忆
  - name: 评测 · 开发服务
  - name: 调试 · 开发服务
  - name: 兼容接口
paths:
  /apps/{app_name}/users/{user_id}/sessions/{session_id}/artifacts/{artifact_name}:
    get:
      tags:
        - 制品
      summary: 读取最新制品
      description: 省略 version 时返回最新版本的 Part，提供 version 查询参数时返回指定版本；制品或版本不存在时返回 404
      operationId: agentApiGetArtifact
      parameters:
        - name: app_name
          in: path
          required: true
          schema:
            type: string
            title: App Name
          description: 应用名称
          example: travel_assistant
        - name: user_id
          in: path
          required: true
          schema:
            type: string
            title: User Id
          description: 用户 ID
          example: user-001
        - name: session_id
          in: path
          required: true
          schema:
            type: string
            title: Session Id
          description: 会话 ID
          example: session-001
        - name: artifact_name
          in: path
          required: true
          schema:
            type: string
            title: Artifact Name
          description: 制品名称
          example: notes.txt
        - name: version
          in: query
          required: false
          schema:
            anyOf:
              - type: integer
              - type: 'null'
            title: Version
          description: 可选版本号；省略时读取最新版本
      responses:
        '200':
          description: 请求成功
          content:
            application/json:
              schema:
                anyOf:
                  - $ref: '#/components/schemas/Part-Output'
                  - type: 'null'
                title: >-
                  Response Load Artifact Apps  App Name  Users  User Id 
                  Sessions  Session Id  Artifacts  Artifact Name  Get
        '404':
          description: 请求的资源不存在
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiError'
        '422':
          description: 请求参数验证失败
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    Part-Output:
      properties:
        mediaResolution:
          anyOf:
            - $ref: '#/components/schemas/PartMediaResolution'
            - type: 'null'
        codeExecutionResult:
          anyOf:
            - $ref: '#/components/schemas/CodeExecutionResult'
            - type: 'null'
          description: 代码执行结果
        executableCode:
          anyOf:
            - $ref: '#/components/schemas/ExecutableCode'
            - type: 'null'
          description: 可执行代码
        fileData:
          anyOf:
            - $ref: '#/components/schemas/FileData'
            - type: 'null'
          description: 通过 URI 引用的文件内容
        functionCall:
          anyOf:
            - $ref: '#/components/schemas/FunctionCall'
            - type: 'null'
          description: 模型请求执行的函数调用
        functionResponse:
          anyOf:
            - $ref: '#/components/schemas/FunctionResponse-Output'
            - type: 'null'
          description: 函数执行结果
        inlineData:
          anyOf:
            - $ref: '#/components/schemas/Blob'
            - type: 'null'
          description: 内嵌二进制内容，data 使用 Base64 编码
        text:
          anyOf:
            - type: string
            - type: 'null'
          title: Text
          description: 文本内容
        thought:
          anyOf:
            - type: boolean
            - type: 'null'
          title: Thought
          description: 是否为思考内容
        thoughtSignature:
          anyOf:
            - type: string
              contentEncoding: base64
              contentMediaType: application/octet-stream
            - type: 'null'
          title: Thoughtsignature
          description: 用于后续调用的思考签名
        videoMetadata:
          anyOf:
            - $ref: '#/components/schemas/VideoMetadata'
            - type: 'null'
          description: 视频元数据
        toolCall:
          anyOf:
            - $ref: '#/components/schemas/ToolCall'
            - type: 'null'
        toolResponse:
          anyOf:
            - $ref: '#/components/schemas/ToolResponse'
            - type: 'null'
        partMetadata:
          anyOf:
            - additionalProperties: true
              type: object
            - type: 'null'
          title: Partmetadata
      additionalProperties: false
      type: object
      title: Part
    ApiError:
      type: object
      required:
        - detail
      properties:
        detail:
          type: string
          description: 错误详情
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
          description: 错误详情
      type: object
      title: HTTPValidationError
    PartMediaResolution:
      properties:
        level:
          anyOf:
            - $ref: '#/components/schemas/PartMediaResolutionLevel'
            - type: 'null'
        numTokens:
          anyOf:
            - type: integer
            - type: 'null'
          title: Numtokens
      additionalProperties: false
      type: object
      title: PartMediaResolution
    CodeExecutionResult:
      properties:
        outcome:
          anyOf:
            - $ref: '#/components/schemas/Outcome'
            - type: 'null'
        output:
          anyOf:
            - type: string
            - type: 'null'
          title: Output
        id:
          anyOf:
            - type: string
            - type: 'null'
          title: Id
          description: 标识符
      additionalProperties: false
      type: object
      title: CodeExecutionResult
    ExecutableCode:
      properties:
        code:
          anyOf:
            - type: string
            - type: 'null'
          title: Code
        language:
          anyOf:
            - $ref: '#/components/schemas/Language'
            - type: 'null'
          description: 应用定义语言
        id:
          anyOf:
            - type: string
            - type: 'null'
          title: Id
          description: 标识符
      additionalProperties: false
      type: object
      title: ExecutableCode
    FileData:
      properties:
        displayName:
          anyOf:
            - type: string
            - type: 'null'
          title: Displayname
        fileUri:
          anyOf:
            - type: string
            - type: 'null'
          title: Fileuri
          description: 文件 URI
        mimeType:
          anyOf:
            - type: string
            - type: 'null'
          title: Mimetype
          description: 内容的 MIME 类型
      additionalProperties: false
      type: object
      title: FileData
    FunctionCall:
      properties:
        id:
          anyOf:
            - type: string
            - type: 'null'
          title: Id
          description: 标识符
        args:
          anyOf:
            - additionalProperties: true
              type: object
            - type: 'null'
          title: Args
          description: 函数参数对象
        name:
          anyOf:
            - type: string
            - type: 'null'
          title: Name
          description: 名称
        partialArgs:
          anyOf:
            - items:
                $ref: '#/components/schemas/PartialArg'
              type: array
            - type: 'null'
          title: Partialargs
        willContinue:
          anyOf:
            - type: boolean
            - type: 'null'
          title: Willcontinue
      additionalProperties: false
      type: object
      title: FunctionCall
    FunctionResponse-Output:
      properties:
        willContinue:
          anyOf:
            - type: boolean
            - type: 'null'
          title: Willcontinue
        scheduling:
          anyOf:
            - $ref: '#/components/schemas/FunctionResponseScheduling'
            - type: 'null'
        parts:
          anyOf:
            - items:
                $ref: '#/components/schemas/FunctionResponsePart'
              type: array
            - type: 'null'
          title: Parts
          description: 按顺序排列的消息内容片段
        id:
          anyOf:
            - type: string
            - type: 'null'
          title: Id
          description: 标识符
        name:
          anyOf:
            - type: string
            - type: 'null'
          title: Name
          description: 名称
        response:
          anyOf:
            - additionalProperties: true
              type: object
            - type: 'null'
          title: Response
          description: 响应内容
      additionalProperties: false
      type: object
      title: FunctionResponse
    Blob:
      properties:
        data:
          anyOf:
            - type: string
              contentEncoding: base64
              contentMediaType: application/octet-stream
            - type: 'null'
          title: Data
        displayName:
          anyOf:
            - type: string
            - type: 'null'
          title: Displayname
        mimeType:
          anyOf:
            - type: string
            - type: 'null'
          title: Mimetype
          description: 内容的 MIME 类型
      additionalProperties: false
      type: object
      title: Blob
    VideoMetadata:
      properties:
        endOffset:
          anyOf:
            - type: string
            - type: 'null'
          title: Endoffset
        fps:
          anyOf:
            - type: number
            - type: 'null'
          title: Fps
        startOffset:
          anyOf:
            - type: string
            - type: 'null'
          title: Startoffset
      additionalProperties: false
      type: object
      title: VideoMetadata
    ToolCall:
      properties:
        id:
          anyOf:
            - type: string
            - type: 'null'
          title: Id
          description: 标识符
        toolType:
          anyOf:
            - $ref: '#/components/schemas/ToolType'
            - type: 'null'
        args:
          anyOf:
            - additionalProperties: true
              type: object
            - type: 'null'
          title: Args
          description: 函数参数对象
      additionalProperties: false
      type: object
      title: ToolCall
    ToolResponse:
      properties:
        id:
          anyOf:
            - type: string
            - type: 'null'
          title: Id
          description: 标识符
        toolType:
          anyOf:
            - $ref: '#/components/schemas/ToolType'
            - type: 'null'
        response:
          anyOf:
            - additionalProperties: true
              type: object
            - type: 'null'
          title: Response
          description: 响应内容
      additionalProperties: false
      type: object
      title: ToolResponse
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
              - type: string
              - type: integer
          type: array
          title: Location
          description: 出错字段的位置
        msg:
          type: string
          title: Message
          description: 验证错误说明
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
        - loc
        - msg
        - type
      title: ValidationError
    PartMediaResolutionLevel:
      type: string
      enum:
        - MEDIA_RESOLUTION_UNSPECIFIED
        - MEDIA_RESOLUTION_LOW
        - MEDIA_RESOLUTION_MEDIUM
        - MEDIA_RESOLUTION_HIGH
        - MEDIA_RESOLUTION_ULTRA_HIGH
      title: PartMediaResolutionLevel
    Outcome:
      type: string
      enum:
        - OUTCOME_UNSPECIFIED
        - OUTCOME_OK
        - OUTCOME_FAILED
        - OUTCOME_DEADLINE_EXCEEDED
      title: Outcome
    Language:
      type: string
      enum:
        - LANGUAGE_UNSPECIFIED
        - PYTHON
      title: Language
    PartialArg:
      properties:
        boolValue:
          anyOf:
            - type: boolean
            - type: 'null'
          title: Boolvalue
        jsonPath:
          anyOf:
            - type: string
            - type: 'null'
          title: Jsonpath
        nullValue:
          anyOf:
            - type: string
              const: NULL_VALUE
            - type: 'null'
          title: Nullvalue
        numberValue:
          anyOf:
            - type: number
            - type: 'null'
          title: Numbervalue
        stringValue:
          anyOf:
            - type: string
            - type: 'null'
          title: Stringvalue
        willContinue:
          anyOf:
            - type: boolean
            - type: 'null'
          title: Willcontinue
      additionalProperties: false
      type: object
      title: PartialArg
    FunctionResponseScheduling:
      type: string
      enum:
        - SCHEDULING_UNSPECIFIED
        - SILENT
        - WHEN_IDLE
        - INTERRUPT
      title: FunctionResponseScheduling
    FunctionResponsePart:
      properties:
        inlineData:
          anyOf:
            - $ref: '#/components/schemas/FunctionResponseBlob'
            - type: 'null'
          description: 内嵌二进制内容，data 使用 Base64 编码
        fileData:
          anyOf:
            - $ref: '#/components/schemas/FunctionResponseFileData'
            - type: 'null'
          description: 通过 URI 引用的文件内容
      additionalProperties: false
      type: object
      title: FunctionResponsePart
    ToolType:
      type: string
      enum:
        - TOOL_TYPE_UNSPECIFIED
        - GOOGLE_SEARCH_WEB
        - GOOGLE_SEARCH_IMAGE
        - URL_CONTEXT
        - GOOGLE_MAPS
        - FILE_SEARCH
      title: ToolType
    FunctionResponseBlob:
      properties:
        mimeType:
          anyOf:
            - type: string
            - type: 'null'
          title: Mimetype
          description: 内容的 MIME 类型
        data:
          anyOf:
            - type: string
              contentEncoding: base64
              contentMediaType: application/octet-stream
            - type: 'null'
          title: Data
        displayName:
          anyOf:
            - type: string
            - type: 'null'
          title: Displayname
      additionalProperties: false
      type: object
      title: FunctionResponseBlob
    FunctionResponseFileData:
      properties:
        fileUri:
          anyOf:
            - type: string
            - type: 'null'
          title: Fileuri
          description: 文件 URI
        mimeType:
          anyOf:
            - type: string
            - type: 'null'
          title: Mimetype
          description: 内容的 MIME 类型
        displayName:
          anyOf:
            - type: string
            - type: 'null'
          title: Displayname
      additionalProperties: false
      type: object
      title: FunctionResponseFileData

````