FastAPI · interview question
A bug appears around pydantic models. What is the strongest first debugging move?
Multiple choiceEasychapter-13-curatedpremiumfastapipydantic-models
from pydantic import BaseModel
class CreateOrderRequest(BaseModel):
sku: str
quantity: intAnswer and explanation
Correct answer
D. Trace one concrete example, inspect the state transitions, and compare them to the intended rule before rewriting anything.
Why
That approach is reliable because it creates evidence. Raw dictionaries at the web boundary make contract drift and validation gaps more likely.
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