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Finaps/EventSourcing

This is a .NET 6 library for implementing event sourcing, providing a structured way to persist and query domain events, snapshots, and projections. It offers a core abstraction for managing aggregate state and building projections, backed by either Entity Framework Core (SQL Server, PostgreSQL) or Azure Cosmos DB. The system supports transactional commits, automatic snapshotting, and bulk projection updates to ensure data consistency and performance.

42.5

Weak · 3 August 2026

4.2k

lines of production code

C#

with JavaScript

2

bus factor · 6 authors in all

3

measurements over time

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How it got here

2021 · Initial release and .NET 6 migration

This period marks the initial release of the Finaps.EventSourcing library, establishing the core abstractions, projection system, and example projects. The work focused on implementing backend providers for Entity Framework Core and Azure Cosmos DB, while upgrading the entire solution to .NET 6 and adding comprehensive test coverage.

8 changes

2022 · Event sourcing core and example implementation

This period focused on implementing the core event sourcing infrastructure, including the AggregateService, RecordStore, and SnapshotFactory, alongside a complete webshop example application. The work established the foundational domain models for products and baskets, supported by comprehensive unit and integration tests across Cosmos DB and Entity Framework backends.

24 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 a75228f9d7 — 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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