利用WebMan技术实现在线餐饮订购系统

// 引进需求的模块
const express = require('express');
const mongoose = require('mongoose');

// 毗连到MongoDB数据库
mongoose.connect('mongodb://localhost/restaurant', {
  useNewUrlParser: true,
  useUnifiedTopology: true
})
  .then(() => console.log('Connected to MongoDB'))
  .catch(err => console.error('Failed to connect to MongoDB'));

// 界说菜品模子
const Dish = mongoose.model('Dish', new mongoose.Schema({
  name: String,
  price: Number
}));

// 建立Express使用
const app = express();

// 加添中央件
app.use(express.json());

// 猎取一切菜品
app.get('/dishes', async (req, res) => {
  const dishes = await Dish.find();
  res.json(dishes);
});

// 创立新的菜品
app.post('/dishes', async (req, res) => {
  const dish = new Dish(req.body);
  await dish.save();
  res.json(dish);
});

// 增除了菜品
app.delete('/dishes/:id', async (req, res) => {
  const dish = await Dish.findByIdAndDelete(req.params.id);
  res.json(dish);
});

// 封动供职器
app.listen(3000, () => console.log('Server started on port 3000'));