feat: mapper.

mapper/interface.go

@@ -0,0 +1,10 @@
+package mapper
+
+// Mapper defines the interface for converting between DTOs and models.
+type Mapper[DTO any, MODEL any] interface {
+	// ToModel converts a DTO to a MODEL.
+	ToModel(*DTO) *MODEL
+
+	// ToDto converts a MODEL to a DTO.
+	ToDto(*MODEL) *DTO
+}