@tesler-ui/cra-template-typescript/template/src/setupProxy.js

The base TypeScript template for Create React App.

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

module.exports = function(app) {
  app.use(
      '/api/v1',
      createProxyMiddleware({
        target: 'http://localhost:8080'
      })
  );
};