This example shows how to use environment variables in Next.js.
The index page (pages/index.js) will show you how to access environment variables in the server, and how to expose environment variables to the browser.
Deploy the example using Vercel:
Execute create-next-app
with npm or Yarn to bootstrap the example:
npx create-next-app --example environment-variables environment-variables-app
# or
yarn create next-app --example environment-variables environment-variables-app
Deploy it to the cloud with Vercel (Documentation).