# lesson07 

**Repository Path**: superjunjin/lesson07

## Basic Information

- **Project Name**: lesson07 
- **Description**: lesson07 
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2021-08-26
- **Last Updated**: 2021-08-26

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# 项目启动

关于课上项目安装启动和docker服务安装启动

- `yarn install` 安装依赖，注意node要大于12，否则不能安装正确
- `docker-compose up` 安装启动docker服务（前提打开docker应用，或命令行启动docker）
- 另起命令行启动fastify服务器项目`node app.js`
  - 如果报授权失败，启动mongo-init，运行`node db.js`初始化管理员用户数据等。。。
  - 然后，重启服务node app.js，应该能正常启动

# Fastify

实现课上功能

# Koa

## 实现mongo功能

### 依赖

```
"dependencies": {
    "koa": "^2.6.2",
    "mongoose": "^5.3.12",
    "koa-router": "^10.0.0"
 },
```

### 启动

`node app.js`启动app.js

暂时只实现增查操作

```javascript
const Koa = require('koa')
const Router = require('koa-router');
const mongoose = require('./db/mongo.js');
const app = new Koa()
const router = new Router();

const DB_URL = 'mongodb://master:master!123@localhost:27017/todos'
mongoose.connect(DB_URL)
const Cat = mongoose.model('Cat', { name: String });

// 对于任何请求，app将调用该异步函数处理请求：
app.use(async (ctx, next) => {
    console.log(`Process ${ctx.request.method} ${ctx.request.url}...`);
    await next();
});

router.get('/hello', async (ctx, next) => {
    const data = await Cat.find({});
    console.log('data', data)
    ctx.response.body = JSON.parse(data)    
});

router.get('/hello/:name', async (ctx, next) => {
    let name = ctx.params.name;
    
    const kitty = new Cat({ name: name });
    kitty.save().then(() => console.log('meow'));
    ctx.response.body = `<h1>add, ${name}</h1>`
});

app.use(router.routes());


app.listen(3001);
console.log('app started at port http://localhost:3001/');


```



加紧实现中。。。。。。。。。