from loadfile import load
orders = load("data/orders.parquet", columns=["order_id", "amount"])
print(orders.head())
Read selected columns with loadfile
A small example using local files; install loadfile before running it.
Python
2 saved items
Validate a positive quantity
An illustrative request model using Pydantic. Invalid or non-positive quantities raise a validation error.
from pydantic import BaseModel, Field class OrderInput(BaseModel): product_id: str = Field(min_length=1) quantity: int = Field(gt=0) order = OrderInput(product_id="sample-product", quantity=3)