lib/books.ts

@@ -2,6 +2,29 @@ import sqlite3 from "sqlite3";
 
 const DATABASE_PATH = "catalogue.db";
 
+export async function getBook(id: number): Promise<DetailedBook> {
+  const database = new sqlite3.Database(DATABASE_PATH, sqlite3.OPEN_READONLY);
+
+  const sql =
+    "SELECT isbn, lccn, title, subtitle, authors, edition, publisher, publish_year, publish_month, publish_location, pages, pagination, weight, last_updated FROM books WHERE id = ? AND deleted = 0";
+
+  const book: Promise<DetailedBook> = new Promise((resolve, reject) => {
+    database.get(sql, [id], (err: Error | null, book: DetailedBook) => {
+      if (err) {
+        reject(err);
+      }
+      if (book) {
+        resolve(book);
+      } else {
+        reject(new Error("Not a valid id"));
+      }
+    });
+  });
+
+  database.close();
+  return book;
+}
+
 export async function getAllBooks() {
   const database = new sqlite3.Database(DATABASE_PATH, sqlite3.OPEN_READONLY);
 
@@ -22,6 +45,23 @@ export async function getAllBooks() {
   return books;
 }
 
+export interface DetailedBook {
+  isbn: string | null;
+  lccn: string | null;
+  title: string | null;
+  authors: string | null;
+  edition: string | null;
+  publisher: string | null;
+  publish_year: string | null;
+  publish_month: string | null;
+  publish_location: string | null;
+  pages: string | null;
+  pagination: string | null;
+  weight: string | null;
+  last_updated: Date | null;
+  deleted: boolean | null;
+}
+
 export interface SimpleBook {
   id: number;
   title: string | null;

pages/index.tsx

@@ -1,28 +1,33 @@
 import React from "react";
 
-import { getAllBooks, SimpleBook } from "../lib/books";
+import { getBook, getAllBooks, DetailedBook, SimpleBook } from "../lib/books";
 
 export default function Home(props: Props) {
   return (
-    <ul>
-      {props.books.map((book, idx) => {
-        return (
-          <li key={`${idx}_${book.id}`}>
-            {book.id}; {book.title}; {book.authors}; {book.isbn}
-          </li>
-        );
-      })}
-    </ul>
+    <div>
+      <ul>
+        {props.books.map((book, idx) => {
+          return (
+            <li key={`${idx}_${book.id}`}>
+              {book.id}; {book.title}; {book.authors}; {book.isbn}
+            </li>
+          );
+        })}
+      </ul>
+      <p>{props.book.title}</p>
+    </div>
   );
 }
 
 interface Props {
+  book: DetailedBook;
   books: SimpleBook[];
 }
 
 export async function getServerSideProps() {
   return {
     props: {
+      book: await getBook(44),
       books: await getAllBooks(),
     },
   };

tsconfig.json

@@ -3,7 +3,7 @@
     /* Basic Options */
     "incremental": true,
     "target": "ES6",
-    "module": "esnext",
+    "module": "CommonJS",
     "moduleResolution": "node",
     "lib": ["dom", "dom.iterable", "esnext"],
     "sourceMap": true,