Backend Architecture & System Design

To design scalable microservices in TypeScript, you should decompose services by domain boundaries, implement event-driven communication, and apply dependency injection to maintain loose coupling and secure server-side interactions. This ensures your backend remains maintainable as it grows.

The best way to structure API design is to implement clean architecture controllers that separate business logic from transport layers, allowing you to uniformly support both RESTful and GraphQL endpoints while keeping use case patterns isolated.

Implementing the repository pattern with Prisma involves encapsulating your database queries behind repository interfaces, which abstracts the ORM details and aligns your data architecture with domain-driven design principles for maintainable data access.

Yes, the clean architecture use case pattern works well with event-driven communication by keeping your core business logic independent of delivery mechanisms, allowing microservices to trigger inter-service events without coupling internal use cases.

You should use domain-driven design for backend system decomposition when your application has complex business rules requiring strict boundaries, allowing you to map microservices directly to business domains and enforce scalable, maintainable architectural patterns.