library/pages/index.tsx

import React from "react";

import { getAllBooks, SimpleBook } from "../lib/books";

export default function Home(props: Props) {
  console.log(props.books);
  return <main>I am a book</main>;
}

interface Props {
  books: SimpleBook[];
}

export async function getServerSideProps() {
  return {
    props: {
      books: await getAllBooks(),
    },
  };
}