FastAPI · interview question
Which move is the best default when validation becomes part of this workflow?
Multiple choiceMediumchapter-13-curatedpremiumfastapivalidation
Answer and explanation
Correct answer
D. Reject bad requests before the workflow invests more state and side effects into them.
Why
Reject bad requests before the workflow invests more state and side effects into them. That is the stronger engineering move because interviewers often reward explicit boundary validation because it keeps system layers honest. Allowing invalid data deeper into the service layer makes later failures harder to interpret.
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