About This Architecture

C4 component diagram for CU-20 Exportar Reportes on Mi Peritaje, a vehicle inspection platform built on OCI. The architecture flows from Administrator through a React + Redux Toolkit frontend SPA to a FastAPI backend, where ReporteController routes requests to ReporteService for validation and ReporteDAO for data retrieval from PostgreSQL. ExportacionService generates CSV and Excel files, returning downloadable exports to the frontend while enforcing max file size limits and validating report types (Users, Transactions, Inspections). This pattern demonstrates separation of concerns across controller, service, and data access layers, critical for maintainable report generation at scale. Fork and customize this diagram on Diagrams.so to adapt validation rules, add new report types, or integrate additional export formats. The exception flow handling ensures graceful degradation when reports exceed size thresholds.

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How do you design a scalable report export system on OCI with FastAPI and PostgreSQL?

This C4 diagram shows a layered architecture where ReporteController receives export requests, ReporteService validates report type and date range, ReporteDAO retrieves data from PostgreSQL, and ExportacionService generates CSV/Excel files with size limit enforcement. This separation enables independent scaling and testing of each component.