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# 医疗问诊 Agent API 文档
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2026-06-10 09:32:36 +08:00
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本文档面向前端联调,描述当前 FastAPI 后端已保留和可调用的接口。
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公网基础地址:
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```text
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http://8.160.178.88/fastapi
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```
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本地调试地址:
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```text
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http://127.0.0.1:9000
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```
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2026-06-10 09:32:36 +08:00
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## 1. 通用规则
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除健康检查外,所有业务接口都需要携带:
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```http
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Authorization: Bearer <access_token>
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X-Entry-Scene: vue_frontend
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X-Request-Id: <可选>
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```
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`Authorization` 使用 Django 用户中心签发的 access token。FastAPI 会转发 token 到 Django `/api/user/users/me/`,返回 200 后以 Django 用户 `id` 作为本服务的 `user_id`。
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普通 JSON 接口统一返回:
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```json
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{
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"code": "OK",
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"message": "success",
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"data": {}
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}
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```
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前端判断成功规则:
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- HTTP 状态码为 `2xx`
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- `code` 等于 `OK`
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- 业务数据从 `data` 读取
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SSE 流式接口不返回上述 JSON 包装,而是返回:
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```text
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event: <event_name>
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data: {"key":"value"}
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```
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## 2. 用户鉴权
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| 接口名称 | url | api | methods | params(入参) | response(返回参数) |
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|---|---|---|---|---|---|
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| 当前用户信息 | `http://8.160.178.88/fastapi/api/v1/auth/me` | `/api/v1/auth/me` | `GET` | Header:`Authorization` 必填,格式 `Bearer <access_token>`;`X-Entry-Scene` 可选,建议 `vue_frontend` | `data.user_id` 用户ID;`data.username` 用户名;`data.display_name` 显示名;`data.role` 用户角色;`data.institution_id` 机构ID;`data.institution_name` 机构名称;`data.department_id` 科室ID;`data.department_name` 科室名称;`data.status` 用户状态 |
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请求示例:
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```bash
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curl -X GET "http://8.160.178.88/fastapi/api/v1/auth/me" \
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-H "Authorization: Bearer <access_token>" \
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-H "X-Entry-Scene: vue_frontend"
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```
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返回示例:
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```json
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{
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"code": "OK",
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"message": "success",
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"data": {
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"user_id": "37",
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"source": "django_user_center",
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"username": "13700000099",
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"display_name": "Swagger测试",
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"tenant_id": "1",
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"role": "student",
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"phone": "13700000099",
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"avatar": "",
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"gender": 0,
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"institution_id": 1,
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"institution_name": "某医院",
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"department_id": 1,
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"department_name": "儿科",
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"status": 1
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}
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}
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```
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## 3. 训练页面接口
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### 3.1 推荐配置信息
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| 接口名称 | url | api | methods | params(入参) | response(返回参数) |
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| 推荐配置信息 | `http://8.160.178.88/fastapi/api/v1/training-config/recommended` | `/api/v1/training-config/recommended` | `GET` | Query:`case_id` 必填,病例ID | `data.recommended` 推荐配置值;`data.recommended_labels` 推荐配置中文名;`data.options` 可选项 |
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返回示例:
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```json
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{
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"code": "OK",
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"message": "success",
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"data": {
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"case_id": 1,
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"recommended": {
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"visit_environment": "outpatient",
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"age_group": "child",
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"education_level": "higher",
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"personality": "calm"
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},
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"recommended_labels": {
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"visit_environment": "门诊",
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"age_group": "儿童",
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"education_level": "高等教育",
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"personality": "平和"
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},
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"options": {}
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}
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}
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```
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### 3.2 训练配置信息
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| 接口名称 | url | api | methods | params(入参) | response(返回参数) |
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| 训练配置信息 | `http://8.160.178.88/fastapi/api/v1/training-config/options` | `/api/v1/training-config/options` | `GET` | Query:`case_id` 必填,病例ID | `data.options.visit_environment` 就诊环境;`data.options.age_group` 年龄段;`data.options.education_level` 文化程度;`data.options.personality` 性格 |
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### 3.3 新建会话
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| 接口名称 | url | api | methods | params(入参) | response(返回参数) |
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| 新建会话 | `http://8.160.178.88/fastapi/api/v1/sessions` | `/api/v1/sessions` | `POST` | Body:`case_id` 必填;`training_type` 必填,当前用 `diagnosis_treatment`;`mode` 必填,允许 `practice`、`teaching`;`score_type` 必填,允许 `percentage`、`five_point`;`patient_config` 可选,自定义病人配置 | `data.session_id` 会话ID;`data.case_id` 病例ID;`data.status` 当前阶段;`data.patient_config` 实际使用的病人配置 |
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请求示例:
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```json
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{
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"case_id": 1,
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"training_type": "diagnosis_treatment",
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"mode": "practice",
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"score_type": "percentage",
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"patient_config": {
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"visit_environment": "outpatient",
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"age_group": "child",
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"education_level": "higher",
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"personality": "calm"
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}
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}
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```
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### 3.4 流式会话
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| 接口名称 | url | api | methods | params(入参) | response(返回参数) |
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| 流式会话 | `http://8.160.178.88/fastapi/api/v1/sessions/{session_id}/chat/stream` | `/api/v1/sessions/{session_id}/chat/stream` | `POST` | Path:`session_id` 必填;Body:`message` 必填,医学生问诊内容 | SSE:`message_delta` AI病人回复增量;`message_done` 完成;`error` 错误 |
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SSE 返回示例:
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```text
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event: message_delta
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data: {"delta":"发热有4天了,最高39度多。"}
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event: message_done
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data: {"latency_ms":1200,"first_token_ms":300,"model":"deepseek-chat","fallback_used":false}
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```
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### 3.5 王主任练习提示
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| 接口名称 | url | api | methods | params(入参) | response(返回参数) |
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| 王主任练习提示 | `http://8.160.178.88/fastapi/api/v1/sessions/{session_id}/hints/stream` | `/api/v1/sessions/{session_id}/hints/stream` | `POST` | Path:`session_id` 必填;Body:`scope` 可选,默认 `current_conversation`;`last_user_message` 可选 | SSE:`hint_delta` 提示文本增量;`hint_done` 完成;`error` 错误 |
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### 3.6 检查列表和结果
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| 接口名称 | url | api | methods | params(入参) | response(返回参数) |
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| 体格检查列表获取 | `http://8.160.178.88/fastapi/api/v1/sessions/{session_id}/physical-exams` | `/api/v1/sessions/{session_id}/physical-exams` | `GET` | Path:`session_id` 必填 | `data.items[]` 当前病例可用体格检查项 |
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| 辅助检查列表获取 | `http://8.160.178.88/fastapi/api/v1/sessions/{session_id}/auxiliary-exams` | `/api/v1/sessions/{session_id}/auxiliary-exams` | `GET` | Path:`session_id` 必填 | `data.items[]` 当前病例可用辅助检查项 |
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| 体格检查某项结果 | `http://8.160.178.88/fastapi/api/v1/sessions/{session_id}/physical-exams/{item_code}` | `/api/v1/sessions/{session_id}/physical-exams/{item_code}` | `POST` | Path:`session_id` 必填;`item_code` 必填,如 `lung_auscultation` | `data.item_code`;`data.item_name`;`data.result_text`;`data.already_ordered`;`data.context_written` |
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| 辅助检查某项结果 | `http://8.160.178.88/fastapi/api/v1/sessions/{session_id}/auxiliary-exams/{item_code}` | `/api/v1/sessions/{session_id}/auxiliary-exams/{item_code}` | `POST` | Path:`session_id` 必填;`item_code` 必填,如 `blood_routine`、`crp`、`chest_xray`、`oxygen_saturation` | 同上 |
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### 3.7 阶段提交
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| 接口名称 | url | api | methods | params(入参) | response(返回参数) |
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| 完成问诊 | `http://8.160.178.88/fastapi/api/v1/sessions/{session_id}/complete-inquiry` | `/api/v1/sessions/{session_id}/complete-inquiry` | `POST` | Path:`session_id` 必填 | `data.status=diagnosis` |
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| 提交诊断 | `http://8.160.178.88/fastapi/api/v1/sessions/{session_id}/diagnosis` | `/api/v1/sessions/{session_id}/diagnosis` | `POST` | Path:`session_id` 必填;Body:`primary_diagnosis` 必填;`differential_diagnoses` 可选数组;`diagnosis_basis` 必填 | `data.status=treatment` |
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| 提交治疗 | `http://8.160.178.88/fastapi/api/v1/sessions/{session_id}/treatment` | `/api/v1/sessions/{session_id}/treatment` | `POST` | Path:`session_id` 必填;Body:`treatment_principle`、`treatment_measures`、`risk_plan`、`communication`、`follow_up` 均必填 | `data.status=evaluating` |
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| 生成评价 | `http://8.160.178.88/fastapi/api/v1/sessions/{session_id}/evaluation` | `/api/v1/sessions/{session_id}/evaluation` | `POST` | Path:`session_id` 必填;Body:`score_type` 可选,允许 `percentage`、`five_point` | `data.evaluation_id`;`data.total_score`;`data.score_details[]`;`data.report_summary` |
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## 4. 教学互动接口
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| 接口名称 | url | api | methods | params(入参) | response(返回参数) |
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|---|---|---|---|---|---|
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| 获取教学列表 | `http://8.160.178.88/fastapi/api/v1/teaching/cases/{case_id}/items` | `/api/v1/teaching/cases/{case_id}/items` | `GET` | Path:`case_id` 必填 | `data.case` 病例信息;`data.questions[]` 题目、选项、答案、解析文本、视频 |
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| 教学互动生成评价 | `http://8.160.178.88/fastapi/api/v1/teaching/evaluation` | `/api/v1/teaching/evaluation` | `POST` | Body:`case_id` 必填;`answers[]` 必填,包含 `question_id` 和 `selected_answer`;`score_type` 可选 | `data.evaluation_id`;`data.session_id`;`data.total_score`;`data.score_details[]` |
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## 5. 评价和个人中心接口
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| 接口名称 | url | api | methods | params(入参) | response(返回参数) |
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|---|---|---|---|---|---|
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| 训练记录列表 | `http://8.160.178.88/fastapi/api/v1/evaluations` | `/api/v1/evaluations` | `GET` | Query:`limit` 可选,默认20;`offset` 可选,默认0 | `data.items[]` 当前用户完整训练后的评价记录 |
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| 训练记录详情 / 评价详情 | `http://8.160.178.88/fastapi/api/v1/evaluations/{evaluation_id}` | `/api/v1/evaluations/{evaluation_id}` | `GET` | Path:`evaluation_id` 必填 | 完整评价详情,训练和教学互动共用 |
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| 导出 PDF | `http://8.160.178.88/fastapi/api/v1/evaluations/{evaluation_id}/export-pdf` | `/api/v1/evaluations/{evaluation_id}/export-pdf` | `POST` | Path:`evaluation_id` 必填 | `data.file_path`;`data.exported_at` |
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| 下载 PDF | `http://8.160.178.88/fastapi/api/v1/evaluations/{evaluation_id}/download-pdf` | `/api/v1/evaluations/{evaluation_id}/download-pdf` | `GET` | Path:`evaluation_id` 必填 | `application/pdf` 文件流,浏览器可直接下载 |
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PDF 下载前端写法:
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```ts
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async function downloadEvaluationPdf(baseUrl: string, token: string, evaluationId: number) {
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const response = await fetch(`${baseUrl}/api/v1/evaluations/${evaluationId}/download-pdf`, {
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method: "GET",
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headers: {
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Authorization: `Bearer ${token}`,
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"X-Entry-Scene": "vue_frontend",
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},
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});
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if (!response.ok) throw new Error("PDF 下载失败");
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const blob = await response.blob();
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const url = URL.createObjectURL(blob);
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const link = document.createElement("a");
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link.href = url;
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link.download = `evaluation-${evaluationId}.pdf`;
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link.click();
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URL.revokeObjectURL(url);
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}
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```
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## 6. AI 学习助手接口
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该接口用于普通用户医学知识问答。后端优先检索本机构知识库;如果机构知识库未初始化、Milvus / embedding 暂不可用或未命中来源,接口仍会继续调用 LLM,回答开头会声明“未检索到本机构知识库参考,以下为大模型通用学习回答。”
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| 接口名称 | url | api | methods | params(入参) | response(返回参数) |
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| AI学习助手流式问答 | `http://8.160.178.88/fastapi/api/v1/learning-assistant/chat/stream` | `/api/v1/learning-assistant/chat/stream` | `POST` | Body:`question` 必填,2-1000字;`top_k` 可选,1-10;`score_threshold` 可选,0-1 | SSE:`retrieval_done` 检索状态;`answer_delta` 回答增量;`answer_done` 完成;`error` 错误 |
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请求示例:
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```json
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{
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"question": "支气管肺炎的典型临床表现有哪些?",
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"top_k": 5,
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"score_threshold": 0.35
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}
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```
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命中知识库时:
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```text
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event: retrieval_done
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data: {"retrieval_hit":true,"sources":[{"document_id":1,"document_title":"诊断学第十版","file_name":"19.《诊断学》十版(1).pdf","page_start":123,"page_end":124,"chunk_uid":"doc1_chunk35_abcd1234","score":0.78,"quote":"原文片段..."}],"retrieval_error":null,"embedding_latency_ms":320,"search_latency_ms":40}
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event: answer_delta
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data: {"delta":"支气管肺炎常见表现包括发热、咳嗽、喘息...【来源1】"}
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event: answer_done
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data: {"model":"deepseek-chat","total_latency_ms":2300}
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```
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未命中或知识库不可用时:
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```text
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event: retrieval_done
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data: {"retrieval_hit":false,"sources":[],"retrieval_error":"当前机构知识库暂未初始化或检索不可用,已转为大模型通用学习回答。","embedding_latency_ms":null,"search_latency_ms":null}
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event: answer_delta
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data: {"delta":"未检索到本机构知识库参考,以下为大模型通用学习回答。..."}
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event: answer_done
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data: {"model":"deepseek-chat","total_latency_ms":1800}
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```
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## 7. 后台预留:内容管理员知识库接口
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该组接口是后台内容管理员能力,学生端不展示上传入口。当前阶段保留接口和数据结构,后续生产环境接入完整 PDF 解析、分片、embedding、Milvus 构建和异步任务。
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| 接口名称 | url | api | methods | params(入参) | response(返回参数) |
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| 上传知识库 PDF | `http://8.160.178.88/fastapi/api/v1/knowledge-admin/documents/upload` | `/api/v1/knowledge-admin/documents/upload` | `POST` | `multipart/form-data`:`file` 必填,PDF 文件;`document_title` 可选;`document_category` 可选,允许 `textbook`、`guideline`、`manual`、`other`;`version` 可选,默认 `v1` | `data.document_id`;`data.task_id`;`data.status`;`data.parse_status`;`data.embedding_status`;`data.chunk_count`;`data.collection_name` |
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| 知识库文档列表 | `http://8.160.178.88/fastapi/api/v1/knowledge-admin/documents` | `/api/v1/knowledge-admin/documents` | `GET` | Header:内容管理员 token | `data.items[]` 本机构上传文档 |
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| 知识库文档详情 | `http://8.160.178.88/fastapi/api/v1/knowledge-admin/documents/{document_id}` | `/api/v1/knowledge-admin/documents/{document_id}` | `GET` | Path:`document_id` 必填;Header:内容管理员 token | 文档构建状态、分片数、错误信息 |
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## 8. 常见错误码
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| HTTP状态 | code | 含义 |
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| 401 | `AUTH_CREDENTIAL_REQUIRED` | 缺少 `Authorization` |
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| 401 | `AUTH_USER_INVALID` | token 无效、过期或 Django 返回非 200 |
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| 403 | `AUTH_USER_DISABLED` | Django 用户状态被禁用 |
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| 403 | `KNOWLEDGE_ADMIN_FORBIDDEN` | 当前用户不是内容管理员,不能使用后台知识库上传接口 |
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| 404 | `CASE_NOT_FOUND` | 病例不存在、未发布或已停用 |
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| 404 | `SESSION_NOT_FOUND` | 会话不存在或不属于当前用户 |
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| 400 | `SESSION_STATUS_INVALID` | 当前状态不允许执行该操作 |
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| 404 | `ORDER_ITEM_NOT_FOUND` | 当前病例不存在该检查项 |
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| 400 | `ORDER_ITEM_TYPE_MISMATCH` | 体格检查 / 辅助检查接口与检查项类型不匹配 |
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| 404 | `EVALUATION_NOT_FOUND` | 评价不存在或不属于当前用户 |
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| 502 | `LLM_STREAM_FAILED` | LLM 流式调用失败 |
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| 503 | `AUTH_USER_CENTER_UNAVAILABLE` | Django 用户中心超时或不可达 |
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