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.
Deploy the example using Vercel:
Execute create-next-app
with npm or Yarn to bootstrap the example:
npx create-next-app --example api-routes-cors api-routes-cors-app
# or
yarn create next-app --example api-routes-cors api-routes-cors-app
Deploy it to the cloud with Vercel (Documentation).