AtriumPM - Property Management System

AtriumPM is a comprehensive, enterprise-grade property management application built using a modern microservices architecture with .NET 10 and Blazor Web. It provides a robust platform for managing users, properties, units, leases, maintenance, and billing efficiently.

✨ Cool Features & Architecture Highlights

🏢 True Multi-Tenancy with Row-Level Security (RLS)

The application utilizes a highly secure database-level multi-tenancy model. Instead of filtering by TenantId in every LINQ query, it uses SQL Server Row-Level Security (RLS).

• TenantSessionContextConnectionInterceptor: Automatically injects the current tenant's ID into the SQL Server session context (sp_set_session_context).
• TenantRlsBootstrapper: Dynamically creates SQL Server Security Policies to filter and block data access, ensuring strict data isolation per tenant at the database engine level.

📨 Event-Driven Architecture

Asynchronous communication between microservices is handled via RabbitMQ using MassTransit.

• Microservices are decoupled; for instance, the Billing API reacts to LeaseSignedEvents published by the Leasing API to automatically generate invoices.

⏱️ Background Jobs

Uses Quartz.NET for robust background task scheduling, enabling critical time-based operations like recurring billing and late fee generation.

🚀 Modern Tech Stack

• Frontend: Blazor Web App for a rich, interactive user experience.
• Caching: Redis for distributed caching to ensure high performance.
• Database: SQL Server 2022 with Entity Framework Core 10.
• Authentication: JWT-based authentication via a centralized Identity API.
• Containerization: Fully containerized using Docker and easily orchestratable via Docker Compose.

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🏗 Microservices

• Identity API: Handles user authentication, authorization, and multi-tenancy scope using JWT.
• Property API: Manages properties, buildings, and individual units.
• Leasing API: Processes lease agreements, tenant information, and contracts.
• Maintenance API: Tracks maintenance requests and service updates.
• Billing API: Manages financial records, invoices, and payments.

🚀 Getting Started

You can run the entire application stack locally using Docker Compose. Make sure you have Docker installed on your machine.

From the root directory, execute:

docker-compose up -d --build

• The Blazor Frontend will be accessible at http://localhost:5600.
• The APIs run on ports 5100 to 5500.

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📸 Screenshots

login with multi tenancy

manage properties

view property information and create units

view units per property (filter by building or view all)

leases for residents