unleash.unleash/frontend/src/setupProxy.js

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

const API_URL = process.env.UNLEASH_API || 'http://localhost:4242';

module.exports = function(app) {
  app.use(
    '/api',
    createProxyMiddleware({
      target: API_URL,
      changeOrigin: true,
    }),
  );
  app.use(
    '/auth',
    createProxyMiddleware({
      target: API_URL,
      changeOrigin: true,
    }),
  );
  app.use(
    '/logout',
    createProxyMiddleware({
      target: API_URL,
      changeOrigin: true,
    }),
  );
};