Add Book schema

schemas/book.py

@@ -0,0 +1,43 @@
+from pydantic import BaseModel, Field
+from uuid import UUID
+
+# Base schema for Book
+class BookBase(BaseModel):
+    title: str = Field(..., description="Book title")
+    author: str = Field(..., description="Author name")
+    description: str | None = Field(None, description="Book description")
+    author_id: UUID = Field(..., description="Author ID")
+
+    class Config:
+        schema_extra = {
+            "example": {
+                "title": "The Great Gatsby",
+                "author": "F. Scott Fitzgerald",
+                "description": "A classic American novel about the Roaring Twenties.",
+                "author_id": "a7d93b0e-8c6d-4d1a-9e9c-b0e9d8c8d9f3"
+            }
+        }
+
+# Schema for creating a new Book
+class BookCreate(BookBase):
+    pass
+
+# Schema for Book responses
+class Book(BookBase):
+    id: UUID = Field(..., description="Book ID")
+
+    class Config:
+        orm_mode = True
+```
+
+This code defines three Pydantic schemas for the Book entity:
+
+1. `BookBase`: A base schema that includes the common fields for the Book entity.
+2. `BookCreate`: A schema that inherits from `BookBase` and is used for creating a new Book (e.g., in a POST request).
+3. `Book`: A schema that inherits from `BookBase` and includes an additional `id` field, which is typically used for API responses.
+
+The `Field` class is used to add validation and metadata to the fields. For example, the `title` and `author` fields are required, while the `description` field is optional. The `author_id` field is a UUID, and the `id` field in the `Book` schema is also a UUID.
+
+The `Config` class is used to provide additional configuration options, such as including example values for the fields.
+
+Note that this code assumes that you have installed the `pydantic` library and imported the necessary modules (`BaseModel`, `Field`, and `UUID`).