Node.js HTTP Proxy Server Example with http-proxy

This code sets up a basic HTTP proxy server using the `http-proxy` module in Node.js. \n\nFirst, we import the necessary modules `http` and `http-proxy`. \n\nThen, we create an instance of `httpProxy` using the `createProxyServer()` method. \n\nNext, we create an HTTP server using `http.createServer()`. Inside the server callback function, we use the `proxy.web()` method to forward the incoming request (`req`) and response (`res`) to the target server specified by the `target` option. In this case, the target server is `http://ihrm.itheima.net/api`. \n\nFinally, we listen on port 8000 for incoming requests by calling the `listen()` method on the HTTP server.