How to use the http response end method in node.js?

In Node.js, the http.response.end() method is used to complete a response and send data to the client. It takes an optional parameter to specify the data to be sent.

Here is a simple example demonstrating how to use the http.response.end() method.

const http = require('http');

// 创建一个HTTP服务器
const server = http.createServer((req, res) => {
  // 设置响应头
  res.writeHead(200, {'Content-Type': 'text/plain'});
  
  // 向客户端发送数据
  res.end('Hello, World!');
});

// 监听端口
server.listen(3000, () => {
  console.log('Server is running on http://localhost:3000');
});

In the example above, when the client sends a request, the server responds with a text saying “Hello, World!” and then calls the res.end() method to finish the response after sending the data.