How does Rails handle large-scale anti-corruption layers in microservices architecture?

Anti-corruption layers isolate Rails domain logic from external service models and legacy systems.

An anti-corruption layer (ACL) translates external system models into internal domain models. This prevents external systems from polluting Rails domain logic. It acts as a boundary layer that maps APIs, transforms data, and enforces internal invariants. It is critical in legacy integrations and microservice ecosystems where external schemas are unstable.