env.js

// This file is a placeholder and does not end up inside the main bundle.
// Instead, it is transformed and output to the dist/assets directory
// alongside the main bundle. The contents of this file are replaced with
// config for the environment by Webpack during local development and by
// CodeBuild during deployment. The generated index.html requires it
// before the main bundle.

// Example generated file:
// window.env = {
//   DEPLOY_ENV: ${JSON.stringify(process.env.DEPLOY_ENV)},
//   APP_VERSION: ${JSON.stringify(process.env.APP_VERSION)},
//   APP_SECRET: ${JSON.stringify(process.env.APP_SECRET)},
//   GA_ID: ${JSON.stringify(process.env.GA_ID)}
// }

// The variables can be accessed within app code via window.env.VARIABLE_NAME
// E.g. window.env.DEPLOY_ENV
// The types of these variables are declared in src/index.ts