next/server/api/band/[id]/index.get.ts

import { messages } from "@server/constants";
import { Band } from "@models/band";

export default eventHandler(async (ev) => {
	const id = parseInt(getRouterParam(ev, "id") as string);
	const band = await Band.findById(id).exec();

	if (!band) {
		throw createError({
			statusCode: 404,
			message: messages[404],
		});
	}

	return band.toObject();
});