beginnerDTOs & Entity Mapping
What's a practical downside of hand-writing entity-to-DTO mapping code everywhere?
It's repetitive and easy to forget a field when the entity changes, silently dropping data from responses. Libraries like MapStruct generate the mapping code at compile time from an interface you declare, so a missing-field mistake becomes a compile-time signal (or at least a single place to check) instead of a runtime surprise.
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