使用NodeJS/ExpressJS从REST API流式传输大型JSON

node -v
express -v

mkdir rest-api
cd rest-api
npm init -y

npm install express
npm install axios

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

const app = express();
const port = 3000;

app.get('/', (req, res) => {
  // 从REST API获取大型JSON数据
  axios.get('https://example.com/api/data', { responseType: 'stream' })
    .then(response => {
      // 设置响应头，指定数据类型为application/json
      res.setHeader('Content-Type', 'application/json');
      
      // 将数据流式传输到客户端
      response.data.pipe(res);
    })
    .catch(error => {
      res.status(500).send('Error');
    });
});

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

node index.js