typescript-koa-postgresql 实现一个简单的rest风格服务器 —— 集成 koa

接上文

1、安装 koa

yarn add koa koa-router koa-static

yarn add @types/koa @types/koa-router @types/koa-static --dev

2、修改 server.ts

/*
 * @Description: 后台服务入口
 * @version: 0.1.0
 */

import * as Koa from 'koa';
import * as koaStatic from 'koa-static'
import { router } from './router';

const app = new Koa();

/**
 * @name: 设置静态资源目录
 * @param : undefined
 * @return : undefined
 */
app.use(koaStatic('./www'));

/**
 * @name: 使用路由
 * @param : undefined
 * @return : undefined
 */
app.use(router.routes());

/**
 * @name: 服务端口
 * @param : undefined
 * @return : undefined
 */
const httpPort = 8080

app.listen(httpPort);

console.log(`Http Server running on port ${httpPort}`);

3、新建路由文件夹 router 及文件 index.ts

/*
 * @Description: 后台路由组件
 * @version: 0.1.0
 */
import * as Router from 'koa-router';

const router = new Router();

router.get('/*', async (ctx) => {
  ctx.body = 'Hell koa';
})

export { router }

4、文件改动之后，服务程序能够自动重启，安装 nodemon、concurrently

yarn add nodemon concurrently --dev

5、修改 package.json

"main": "./dist/server.js",
"scripts": {
    "server": "nodemon main",
    "dev": "tsc && concurrently "npm run tsc" "npm run server"",
    "build": "tsc",
    "tsc": "tsc -w"
}

6、启动服务

yarn run dev

7、打开浏览器，输入 http://localhost:8080

至此koa的集成完成。

PS：目录结构