Next.js ships with API routes which provides an easy solution to build your own API.

This example shows how to create an API endpoint with CORS headers, using the cors package.

Execute create-next-app with npm, Yarn, or pnpm to bootstrap the example:

npx create-next-app --example api-routes-cors api-routes-cors-app

yarn create next-app --example api-routes-cors api-routes-cors-app

pnpm create next-app --example api-routes-cors api-routes-cors-app

Deploy it to the cloud with Vercel (Documentation).