Add basic getAllBooks API

pages/api/books.ts

@@ -0,0 +1,26 @@
+import { NextApiRequest, NextApiResponse } from "next";
+import sqlite3 from "sqlite3";
+
+const DATABASE_PATH = "catalogue.db";
+
+export default async function getAllBooks(
+  request: NextApiRequest,
+  response: NextApiResponse
+) {
+  const database = new sqlite3.Database(DATABASE_PATH, sqlite3.OPEN_READONLY);
+
+  database.all(
+    "SELECT title, authors, isbn FROM books",
+    (error, rows: SimpleBook[]) => {
+      response.status(200).json(rows);
+    }
+  );
+
+  database.close();
+}
+
+export interface SimpleBook {
+  authors: string;
+  isbn: string;
+  title: string;
+}