Add Book schema

schemas/book.py

@@ -0,0 +1,41 @@
+from pydantic import BaseModel, Field
+from typing import Optional
+from uuid import UUID
+
+
+class BookBase(BaseModel):
+    title: str = Field(..., min_length=1, max_length=200, description="Book title")
+    description: Optional[str] = Field(None, description="Book description")
+    isbn: str = Field(..., description="Book ISBN number")
+    publication_year: int = Field(..., ge=1000, le=9999, description="Year of publication")
+    author_id: str = Field(..., description="ID of the book's author")
+
+
+class BookCreate(BookBase):
+    class Config:
+        schema_extra = {
+            "example": {
+                "title": "The Great Gatsby",
+                "description": "A novel by F. Scott Fitzgerald",
+                "isbn": "978-0743273565",
+                "publication_year": 1925,
+                "author_id": "author_uuid_here"
+            }
+        }
+
+
+class Book(BookBase):
+    id: UUID
+    
+    class Config:
+        orm_mode = True
+        schema_extra = {
+            "example": {
+                "id": "550e8400-e29b-41d4-a716-446655440000",
+                "title": "The Great Gatsby",
+                "description": "A novel by F. Scott Fitzgerald",
+                "isbn": "978-0743273565",
+                "publication_year": 1925,
+                "author_id": "author_uuid_here"
+            }
+        }