Add Product schema

schemas/product.py

@@ -0,0 +1,29 @@
+from pydantic import BaseModel, Field, PositiveFloat, PositiveInt
+
+# Base schema
+class ProductBase(BaseModel):
+    name: str = Field(..., description="Product name")
+    description: str | None = Field(None, description="Product description")
+    price: PositiveFloat = Field(..., description="Product price")
+    stock_quantity: PositiveInt = Field(..., description="Product stock quantity")
+
+# Create schema
+class ProductCreate(ProductBase):
+    pass
+
+    class Config:
+        schema_extra = {
+            "example": {
+                "name": "Product X",
+                "description": "This is a description of Product X",
+                "price": 9.99,
+                "stock_quantity": 100
+            }
+        }
+
+# Response schema
+class Product(ProductBase):
+    id: int
+
+    class Config:
+        orm_mode = True