const { createProxyMiddleware } = require('http-proxy-middleware'); module.exports = function (app) { app.use( '/internal', createProxyMiddleware({ target: 'http://localhost:4000', onError: (err, req, resp) => { console.log(err); }, }), ); app.use( '/__', createProxyMiddleware({ target: 'http://localhost:4000', }), ); };