acc-trace-data-transformation
Data Transformation Tracer
Overview
Traces how data transforms as it passes through application layers — from raw HTTP input through DTOs, Commands, Entities, and back to Response objects. Identifies mappers, serializers, converters, and potential data loss points.
Transformation Chain Patterns
Standard CQRS Chain
HTTP Request Body (JSON/Form)
→ Request DTO (validated input)
→ Command/Query (application layer input)
→ Entity/Aggregate (domain model)
→ Domain Event (side effect data)
→ Response DTO (output format)
→ HTTP Response (JSON/XML)
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