将参数添加到路径rest.js

const userId = 123;
const username = 'john';

// 使用模板字符串拼接URL路径
const url = `https://api.example.com/users/${userId}/${username}`;

// 发送网络请求
fetch(url)
  .then(response => response.json())
  .then(data => {
    // 处理返回的数据
  })
  .catch(error => {
    // 处理请求错误
  });

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

// 定义带参数的路由
app.get('/users/:userId/:username', (req, res) => {
  const userId = req.params.userId;
  const username = req.params.username;

  // 处理请求逻辑
});

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