Answer
Use field selection / projection such as:
?fields=name,email
Implement DTOs to avoid returning unnecessary properties.
Quick Answer
Prevent over-fetching: return only requested fields. Use GraphQL for client-specified field selection. Or implement sparse fieldsets: GET /api/users?fields=id,name,email. Design DTOs per use case (list DTO with fewer fields, detail DTO with more). Avoid returning entire entity graphs when only a few fields are needed. Reduces payload size and serialization cost.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ