CQRSKit: A TypeScript CQRS Framework with Pluggable Database Adapters

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Over the past months, I've been building Genesis DB - an event-sourcing database engine designed around simplicity and and real-world usability. While working on it, I needed a clean, TypeScript-native CQRS framework that would let me model commands, events, and projections without being tied to a specific backend. That's how CQRSKit was born. CQRSKit is a lightweight TypeScript framework for CQRS (Command Query Responsibility Segregation) and Event Sourcing, built with modularity in mind. It ships with a minimal core and allows you to plug in your own database adapter whether that's Genesis DB, Postgres, MySQL, or a custom store. Highlights: - TypeScript-first design: Strong typing for commands, events, and handlers - Event Sourcing support: Append-only event streams and replay capability - Pluggable persistence layer: Bring your own adapter via a simple interface - Separation of concerns: Clean command and query boundaries - Lightweight by design: Zero magic, just predictable behavior npm install cqrskit Docs & examples: https://npmjs.com/package/cqrskit Infos about Genesis DB: https://www.genesisdb.io I'd love feedback from developers using CQRS or Event Sourcing in production: What do you think about a pluggable-adapter approach? Would you prefer stricter conventions or more flexibility in handler definitions? Thanks for reading!

Visit product View on Hacker NewsOct 25, 2025

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