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rocket-workflow-engine

v1.0.17

Published

本项目为 Node.js 后端逻辑执行的工作流引擎,适合作为 npm 包集成到上游应用。

Readme

workflow-engine

本项目为 Node.js 后端逻辑执行的工作流引擎,适合作为 npm 包集成到上游应用。

特点

  • 纯 TypeScript 实现,无前端依赖
  • 适用于 Node.js 后端
  • 支持多种节点类型(任务、条件、并行、循环、结束)
  • 易于扩展和集成

构建与使用

安装依赖

npm install

构建

npm run build

开发模式

npm run build:dev

集成方式

在你的 Node.js 项目中引入并使用各类节点与 WorkflowEngine。

目录结构

  • src/node/ 节点相关逻辑
  • src/core/ 工作流引擎核心
  • src/controller/ 控制器

License

MIT

扩展:注册自定义节点类型

你可以通过 NodeFactory.register(type, factory) 注册自定义节点类型。例如:

import { NodeFactory } from './node/NodeFactory';

NodeFactory.register('MyCustomNode', (def) => ({
  ...def,
  async run(ctx) {
    ctx.set('myCustom', 'hello world');
    console.log('MyCustomNode run called', ctx.toObject());
  },
  async rollback(ctx) {
    ctx.set('myCustom', null);
    console.log('MyCustomNode rollback called', ctx.toObject());
  },
  hasBeenInstantiated: true
}));

// 在节点定义中使用 type: 'MyCustomNode'
const nodes = [
  { id: '1', type: 'MyCustomNode', name: '自定义节点', canRollback: true }
];

这样即可让上游业务灵活扩展节点类型和行为。

workflow/
├── controller/             # 控制层,触发执行、调试、查看状态
│   └── WorkflowController.ts
├── core/                   # 核心执行引擎 & 上下文
│   ├── WorkflowEngine.ts
│   ├── WorkflowContext.ts
│   └── Runtime.ts
├── node/                   # 节点类型定义和工厂
│   ├── BaseNode.ts
│   ├── NodeFactory.ts
│   └── types.ts
├── logger/                 # 日志模块
│   └── Logger.ts
├── schema/                 # DSL JSON 支持的结构定义
│   └── WorkflowSchema.ts
├── index.ts                # 入口
└── example.ts              # 使用示例