configworker/web/config-overrides.js

const { override, fixBabelImports, addLessLoader, overrideDevServer } = require('customize-cra');



const addProxy = () => (configFunction) => {

  configFunction.proxy = {
      '/api/': {
          target: 'http://localhost:3001',
          changeOrigin: true,
          pathRewrite: { '^/api': '/api' },
      },
  };

  return configFunction;
}

module.exports = {
  webpack: override(
    fixBabelImports('import', {
      libraryName: 'antd',
      libraryDirectory: 'es',
      style: true,
    }),
    addLessLoader({
      javascriptEnabled: true,
      modifyVars: { '@primary-color': '#25b864' },
    }),
  ),
  devServer: overrideDevServer(
    addProxy()
  )
};