feat(DNBApi): add api from deutsche national bibliothek

frontend/src/pages/Main/utils/tryGoogleBooksApi.ts

@@ -0,0 +1,16 @@
+import { Book } from "../../../types/Book";
+
+export const tryGoogleBooksApi = async (
+  isbn: string
+): Promise<Pick<Book, "published" | "title"> | undefined> => {
+  const googleBooks = await (
+    await fetch("https://www.googleapis.com/books/v1/volumes?q=isbn:" + isbn)
+  ).json();
+  if ("items" in googleBooks) {
+    return {
+      published: googleBooks.items[0].volumeInfo.publishedDate.substring(0, 4),
+      title: googleBooks.items[0].volumeInfo.title,
+    };
+  }
+  return undefined;
+};