ronnieholm/FSharp-onion-architecture-sample

This system is an F\# sample application demonstrating an onion architecture with vertical slices, specifically designed to manage Scrum stories and tasks. It implements a functional web layer using Giraffe, backed by an SQLite database that utilizes event sourcing for state management. The application enforces JWT-based role security and includes infrastructure for load testing and integration validation.

The Scrum web application has been refactored from an ASP.NET Core MVC controller-based approach to a Giraffe-based functional pipeline. This change introduces a vertical slice architecture, moving handlers (such as story creation, task addition, and retrieval) into dedicated modules rather than a monolithic application layer. The migration includes the removal of the legacy \Application.fs\, \Domain.fs\, and \Infrastructure.fs\ files in favor of new seedwork and route handler modules. Additionally, the application now supports JWT authentication with token issuance and renewal, integrates SQLite health checks, and applies standardized error handling via ProblemDetails filters.

src/Scrum · high confidence

The repository has been reorganized to reflect a shift from a generic clean architecture sample to a specific F\# onion architecture Scrum sample. The solution structure was updated, moving the test project from src/Scrum.Tests to tests/Scrum.Tests. Documentation was significantly expanded to detail the modular monolith design, vertical slice architecture, and adherence to Zalando API guidelines, including JWT role-based security and CQRS. A BSD 2-Clause license was added, and .gitignore was updated to exclude SQLite database files (scrum\_web.sqlite, scrum\_test.sqlite) generated during local development.

(repo-wide) · high confidence

The Scrum module has been reorganized to support a vertical slice architecture, introducing new foundational files such as \Seedwork.fs\ and \Story.fs\. \Seedwork.fs\ establishes shared domain and application-layer primitives, including validation helpers, paging structures, and identity models. \Story.fs\ defines the core Story aggregate, its associated tasks, and the specific events (such as capturing or revising story details) that drive state changes, replacing the previous flat structure with a more modular, feature-oriented layout.

Scrum · high confidence

The SQLite database schema for the Scrum module has been replaced with a new version that supports event sourcing and improved pagination. The new schema introduces an \events\ table to store aggregate events, replacing the previous \domain\_events\ table. It also adds unique constraints on \created\_at\ columns and specific indexes to the \stories\, \tasks\, and \events\ tables to enable efficient pagination. Foreign key cascading is now explicitly defined for task deletion when associated stories are removed.

src/Scrum/Sql · high confidence

Added integration and web test suites for Scrum; Added k6 load test script for API endpoints; Removed integration tests for Story and Task commands.

The application and its test suite have been upgraded from .NET 7 to .NET 10. To streamline dependency management, Central Package Management has been enabled via a new Directory.Packages.props file, which now centrally defines versions for key libraries including Giraffe 8.2.0, Microsoft.AspNetCore.Authentication.JwtBearer 10.0.0, and various OpenTelemetry exporters. Individual project files no longer specify version numbers for these packages, relying instead on the central definitions.

(dependencies) · high confidence

Written by watchdog.canine.dev from the codebase's own history, inside the signed delivery this page is composed from.

• CAI 55 → 56 (+1.4)
• Rubric changed (rubric-2026.09.15 → rubric-2026.10.1) — scores are not directly comparable.

• Code Health 90 → 90 (+0.0)
• Architecture 99 → 99 (+0.7)
• Maturity 68 → 68 (+0.0)
• Readiness 31 → 28 (-2.7)
• Security 97 → 95 (-2.6)
• Domain Modelling 74 → 100 (+25.6)

• Documentation: no installation or build instructions (README.md)
• Documentation: no usage examples (README.md)

• Leaked secret: high-entropy-secret (k6/loadTest.js)
• Leaked secret: jwt (k6/loadTest.js)
• Secret: jwt (k6/loadTest.js)

• Unchanged — 0 containers · 1 contexts · 0 edges

Written by watchdog.canine.dev from the codebase's own history, inside the signed delivery this page is composed from.

ronnieholm/FSharp-onion-architecture-sample was measured the same way every project in this corpus was: the same rubric, at a pinned commit, with the result published in full. Point a surveyor at a repository you know and see whether you agree with it.