Tất cả câu hỏi

const { MongoClient } = require('mongodb');
async function run() {
  const client = new MongoClient('mongodb://localhost:27017');
  try {
    await client.connect();
    const db = client.db('test');
    const collection = db.collection('products');
    await collection.insertOne({ name: 'Laptop', price: 1000 });
    const result = await collection.findOne({ price: { $gte: 500 } });
    console.log(result.name);
  } finally {
    await client.close();
  }
}
run();

const express = require('express');
const app = express();
app.use('/api', (req, res, next) => {
    console.log('Middleware');
    next();
});
app.get('/api', (req, res) => res.send('API'));
app.listen(3000);

const express = require('express');
const app = express();

app.all('/users', (req, res, next) => {
  console.log('Accessing the /users endpoint...');
  next(); // pass control to the next handler
});

app.delete('/users', (req, res) => {
  res.send('DELETE request to the /users endpoint');
});

app.listen(3000, () => {
  console.log('Server running on port 3000');
});