EraCode practice
Whitelist DTO validation: forbid unknown fields
NestJSadvancedMulti-Part
Summary
Security/validation micro-practice: prevent mass-assignment by rejecting requests that include properties not defined in your DTO.
Problem preview
### Goal Your NestJS app uses DTO validation, but you want to **reject** any request that includes fields not explicitly allowed by the DTO (to reduce mass-assignment risk). ### One action item Fill …
Attempt this challenge
Sign in to attempt the full challenge with timed AI grading, hints, and test feedback.