application-layer

To implement a consistent Rust DDD application layer, enforce standardized patterns for command and query services, DTOs, and dependency injection registries. This aligns use case orchestration with repository-specific architectural conventions to prevent cross-layer coupling.

The best way to handle DTO validation and error translation in a Rust Axum web API is using garde for validation and JsonSchema. Translate domain and persistence errors into a unified ApplicationError to maintain consistent error handling across the application crate.

Set up AuditContext and dependency injection registries by following established architectural conventions for use case orchestration. This ensures the application layer correctly coordinates domain logic while maintaining strict boundaries from infrastructure and presentation layers.

Yes, you can separate application layer responsibilities from domain and infrastructure layers in Rust. The approach provides clear scope boundary guidance to distinguish use case orchestration from domain logic and infrastructure implementation, avoiding architectural leaks and cross-layer coupling.

Inconsistent architectural patterns in a Rust DDD application crate occur when new use cases bypass established conventions. Enforcing standardized setup for command services, DTO validation, and unified error translation ensures all code additions align with existing repository standards.