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Infrastructure Layer

Summary​

Infrastructure implements EF Core/PostgreSQL persistence, filters, repository/unit of work, evidence, outbox mapping/storage/relay, external clients, seeding, and migrations. No direct Payroll database reads or receipt binary storage occur.

Audience​

Backend and frontend developers, QA, architects, DevOps, support, and new engineers.

Source References​

  • microservices/src/expense-service/Infrastructure/ExpenseDbContext.cs

See Also​

Keywords​

  • Expense technical
  • Infrastructure/ExpenseDbContext.cs

Revision Information​

  • Status: Draft
  • Last reviewed: 2026-07-16
  • Review cycle: Quarterly