@c10k/tx-manager
Version:
NodeJS MySQL TxManager and MapperFactory
41 lines (28 loc) • 1.3 kB
Markdown
通过 [mysql2](https://github.com/sidorares/node-mysql2) 和 [mybatis-mapper](https://github.com/OldBlackJoe/mybatis-mapper) 提供近似 Spring-Boot + MyBatis 的 CRUD 研发体验。
```bash
npm install @c10k/tx-manager
```
参考如下文件
1. [tests/resources/mapper/TestMapper.xml](./tests/resources/mapper/TestMapper.xml)
2. [tests/src/services/TestService.js](./tests/src/services/TestService.js)
- 包含了 Dao、Mapper、Service 的概念
3. [tests/src/config/database.js](./tests/src/config/database.js)
- 类似于 Spring-Boot 中的 Bean 对象
如下代码表示如何开启一个事务,在嵌套的回调中,使用的事务也是同一个,满足了大部分的开发场景。
```js
const uuid1 = uuidv4();
const uuid2 = uuidv4();
await txManager.runTransaction(async (_, connectionId1) => {
const id1 = await testService.save(uuid1);
await txManager.runTransaction(async (_, connectionId2) => {
const id2 = await testService.save(uuid2);
expect(connectionId1).toBe(connectionId2);
const {id: connectionId3} = txManager.getCurrentContext();
expect(connectionId1).toBe(connectionId3);
throw new Error(`rollback by error`);
});
});
```