First, install dependencies: run
yarn install
in the root of your directory (might be able to do this with npm install too? But I initialized the repo with yarn).
Then, run the development server:
npm run dev
# or
yarn devOpen http://localhost:3000 with your browser to see the result.
API routes can be accessed on http://localhost:3000/api/hello. This endpoint can be edited in pages/api/hello.ts.
The pages/api directory is mapped to /api/*. Files in this directory are treated as API routes instead of React pages.