nodejs proxy example

proxy.js

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


// Create Express Server
const app = express();
// cors
app.use(cors())

// Logging
app.use(morgan('dev'));

// Configuration
const PORT = 5000;
const HOST = "localhost";
const API_SERVICE_URL = "https://api-test.aws.machine";


// Proxy endpoints
app.use('/api', createProxyMiddleware({
    target: API_SERVICE_URL,
    changeOrigin: true,
    onProxyRes: (proxyRes, req, res) => {
        // log original request and proxied request info
        const exchange = `[${req.method}] [${proxyRes.statusCode}] ${req.path} -> ${proxyRes.req.protocol}//${proxyRes.req.host}${proxyRes.req.path}`;
        console.log(exchange); // [GET] [200] / -> http://www.example.com
    },
}));

// Start the Proxy
app.listen(PORT, HOST, () => {
    console.log(`Starting Proxy at ${HOST}:${PORT}`);
 });