game-gallery/pages/api/games/[id].ts

// Next.js API route support: https://nextjs.org/docs/api-routes/introduction
import type { NextApiRequest, NextApiResponse } from 'next'
import {Game, getAvailableGames} from '../../../utils/games';

export default async function handler(
  req: NextApiRequest,
  res: NextApiResponse<Game>
) {
  const gameManifests = await getAvailableGames();
  const game = gameManifests.find((g) => g.id === req.query.id);
  if (game) {
    res.json(game)
    return
  }
  res.status(404)
}