Refactor getAllBooks into promisified non-API function

lib/books.ts

@@ -1,34 +1,25 @@
-import { NextApiRequest, NextApiResponse } from "next";
 import sqlite3 from "sqlite3";
 
 const DATABASE_PATH = "catalogue.db";
 
-export default function getAllBooks(
-  request: NextApiRequest,
-  response: NextApiResponse
-) {
-  if (request.method !== "GET") {
-    response.status(405);
-    return;
-  }
-
+export async function getAllBooks() {
   const database = new sqlite3.Database(DATABASE_PATH, sqlite3.OPEN_READONLY);
 
-  try {
+  const books = new Promise<SimpleBook[]>((resolve, reject) => {
     database.all(
       "SELECT title, authors, isbn FROM books",
       (error: Error | null, rows: SimpleBook[]) => {
         if (error) {
-          throw error;
+          reject(error);
         }
-        response.status(200).json(rows);
+        resolve(rows);
       }
     );
-  } catch (error) {
-    response.status(500);
-  }
+  });
 
   database.close();
+
+  return books;
 }
 
 export interface SimpleBook {

pages/index.tsx

@@ -1,8 +1,20 @@
-import type { NextPage } from "next";
 import React from "react";
 
-const Home: NextPage = () => {
-  return <main>I am a book</main>;
-};
+import { getAllBooks, SimpleBook } from "../lib/books";
 
-export default Home;
+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(),
+    },
+  };
+}