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@lmliheng/rag-chunk

v1.0.2

Published

RAG资料读取,解析,分块,存储,向量化,入库。以及线上管理milvus

Readme


架构

┌──────────┐    ┌──────────┐    ┌──────────┐    ┌──────────┐
│  Markdown │───▶│          │    │          │    │          │
│    PDF    │───▶│  Chunk   │───▶│Embedding │───▶│  Milvus  │
│   DOCX*   │───▶│  Split   │    │(ZhipuAI) │    │  Search  │
└──────────┘    └──────────┘    └──────────┘    └──────────┘
                        │                            │
                        ▼                            ▼
                   JSON Output               REST API

功能

文档解析 — Markdown 元数据提取、PDF 文本抽取

智能分块 — 段落感知、可配置 overlap、长度自适应

向量化 — 对接智谱 embedding-3 模型,支持 128/256/512 维度

向量检索 — 连接 Milvus/Zilliz Cloud,支持 ANN 搜索与标量过滤

REST API — Express 服务,提供分块/嵌入/检索接口

技术栈

| 模块 | 技术 | |------|------| | 运行时 | Node.js 24+, TypeScript 5.x | | Web 框架 | Express 5 | | 向量数据库 | @zilliz/milvus2-sdk-node | | Embedding | 智谱 AI embedding-3 | | 文档解析 | pdf-parse | | 文件上传 | multer |

项目结构

├── index.ts                 # 入口 & CLI
├── src/
│   ├── server/index.ts      # Express Web 服务
│   ├── chunk/
│   │   ├── markdown/index.ts  # Markdown 解析 & 分块引擎
│   │   ├── pdf/index.ts       # PDF 解析
│   │   └── word/index.ts      # (开发中)
│   ├── embedding/embedding.ts # 向量化
│   └── file/write.ts          # (开发中)
├── documents/               # 示例文档
├── output/                  # 分块输出
└── .env                     # API Key & Milvus 配置

环境变量

Z_API_KEY — 智谱 AI API Key

MILVUS_DB_IP — Milvus 地址

MILVUS_DB_COLLECTION — Collection 名称

API 路由

GET  /              健康检查
GET  /getState      检查 Milvus 连接状态
GET  /collection_list  列出 Milvus Collections
POST /md_chunk      上传 Markdown → 返回分块 JSON
POST /entity        上传 Markdown → 分块 + 嵌入 → 返回完整 JSON
GET  /search?search_content=关键词  向量检索