Skip to main content

Employee Service Architecture

Summary​

Employee Service is a .NET 8 web service for the Employee bounded context. It combines domain-driven aggregate modeling, explicit application commands and queries, infrastructure adapters, tenant-aware persistence, authenticated request handling, audit capture, and a transactional outbox foundation.

Audience​

  • Backend developers and QA engineers
  • DevOps engineers and solution architects
  • Security engineers and technical product owners

Overview​

The executable project references only the shared kernel and shared contracts projects. Domain code defines aggregates, entities, value objects, invariants, domain events, and persistence ports. Application code coordinates commands, queries, validation, mapping, search ports, organization use cases, audit, and unit-of-work boundaries. Infrastructure supplies EF Core persistence, repository adapters, search, audit, tenant context, and outbox storage. Presentation code maps HTTP-facing handlers, but endpoint reference is outside this epic.

Service architecture​

Architecture style​

  • Domain-oriented layered architecture within one deployable service.
  • CQRS separation through custom command/query marker and handler interfaces.
  • Repository and application-port abstractions with infrastructure implementations.
  • Transactional persistence coordinating aggregate changes, audit records, and outbox records.
  • Minimal hosting composition root in Program.cs.

Dependency direction​

Domain has no dependency on Application or Infrastructure. Application depends on Domain and its abstractions. Infrastructure depends on Domain, Application ports, shared kernel, shared contracts, and EF Core. Presentation and the composition root assemble those parts.

No direct project reference to another domain service exists. Runtime relationships use gateway routing, authenticated context, shared messaging contracts, and downstream consumers where confirmed.

Source References​

  • microservices/src/employee-service/employee-service.csproj
  • microservices/src/employee-service/Program.cs
  • microservices/src/employee-service/Domain/
  • microservices/src/employee-service/Application/
  • microservices/src/employee-service/Infrastructure/

See Also​

Keywords​

  • Employee bounded context
  • Layered service
  • Technical architecture

Revision Information​

  • Status: Draft
  • Last reviewed: 2026-07-15
  • Review cycle: Quarterly