proxy-app.js

'use strict';

const express = require('express');
const { createProxyMiddleware } = require('http-proxy-middleware');

const app = express();
app.use('/aaa/bbb/ccc/', createProxyMiddleware({
    target: 'http://10.1.2.3:1234',
    changeOrigin: true,
    pathRewrite: {
        '^/aaa/bbb/ccc/': '/'
    },
}));
app.listen(8451, () => {
    console.log("Node.js proxy is running...")
});