Add source for get_books endpoint

fastapi_book_server/app/serializers/book.py

@@ -6,6 +6,11 @@ from app.serializers.author import Author
 from app.serializers.orjson_config import ORJSONConfig
 
 
+class BookSource(BaseModel):
+    id: int
+    name: str
+
+
 class Book(BaseModel):
     id: int
     title: str
@@ -19,6 +24,10 @@ class Book(BaseModel):
         pass
 
 
+class BookWithSource(Book):
+    source: BookSource
+
+
 class CreateBook(BaseModel):
     source: int
     remote_id: int