Fix book getting

src/app/services/cache_updater.py

@@ -117,6 +117,9 @@ async def cache_file_by_book_id(
             return None
         raise Retry(defer=15)
 
+    if book is None:
+        return None
+
     if file_type not in book.available_types:
         raise FileTypeNotAllowed(f"{file_type} not in {book.available_types}!")
 

src/app/services/library_client.py

@@ -1,5 +1,5 @@
 from datetime import date
-from typing import Generic, TypeVar
+from typing import Generic, TypeVar, Optional
 
 import httpx
 from pydantic import BaseModel
@@ -48,12 +48,15 @@ class BookDetail(Book):
 AUTH_HEADERS = {"Authorization": env_config.LIBRARY_API_KEY}
 
 
-async def get_book(book_id: int) -> BookDetail:
+async def get_book(book_id: int) -> Optional[BookDetail]:
     async with httpx.AsyncClient(timeout=2 * 60) as client:
         response = await client.get(
             f"{env_config.LIBRARY_URL}/api/v1/books/{book_id}", headers=AUTH_HEADERS
         )
 
+        if response.status_code != 200:
+            return None
+
         return BookDetail.parse_obj(response.json())