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kamilbaczek/Modular-monolith-by-example

This system is a modular .NET estimation tool that manages the full lifecycle of client inquiries, valuations, and payments. It coordinates business logic across distinct domains including user authentication, service catalogs, and automated priority calculations. The architecture leverages Azure infrastructure for deployment, with a microservices-style internal structure using MediatR for command/query handling and SignalR for real-time notifications.

47.2

Weak · 3 August 2026

14k

lines of production code

C#

primary language

1

bus factor · 9 authors in all

2

measurements over time

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How it got here

2021 · Modular monolith and domain implementation

The project underwent a major architectural shift to a modular monolith structure, introducing distinct modules for Valuations, Inquiries, Payments, and Users. This period saw the implementation of core business logic, including user authentication, email notifications, and payment processing, while removing legacy components like the Carts module.

117 changes

2022 · Multi-module feature expansion and infrastructure

The project expanded its modular architecture by introducing new capabilities for push notifications, SMS, and priority management, all gated by feature flags. Concurrently, the team established a robust infrastructure layer using Pulumi for Azure resources and implemented comprehensive health checks and event publishing across the codebase.

60 changes

2023 · test coverage expansion

This period focused on significantly expanding test coverage across the Valuations and Priorities modules. The work involved implementing architectural tests to enforce coding standards and layering rules, as well as adding acceptance and integration tests to verify business workflows and data persistence.

4 changes

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About this page

  • The description of this project is derived from its own commit history, not from its README.
  • The score is its highest published measurement, taken on 3 August 2026 at a pinned commit. It is not a live figure and does not change until the project is measured again.
  • Measured at commit 35f7721623 — the exact code this score is about.
  • Scored under rubric rubric-2026.08.18. Score the same commit under that rubric and you get the same number.
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