LTI on Pauls Blog

The Repository That Doesn't Grow: Criteria over Finder Methods

Fri, 15 May 2026 00:00:00 +1000

The Repository That Doesn’t Grow: Criteria over Finder Methods

SessionRepository in the Laptime Insights server is ~130 lines and exposes seven public methods. It has served every read path the app needs — listing, single lookup, filter discovery, time-bucketed aggregation, and the writes — without growing a new finder method for each new screen. This post is a tour of how it’s structured and why the method surface stays small.

Building an ACC Dashboard with AI-Assisted Development

Thu, 14 May 2026 00:00:00 +1000

Building useful software is the best way to learn. Building useful software for a problem you actually have is even better.

I race in Assetto Corsa Competizione. I wanted a proper dashboard for analysing lap times. So I started building one.

The Real Goal

Two goals, really. First: something genuinely useful. Second: a vehicle for practising software development - and increasingly, for understanding how AI tools fit into a real workflow.

Anatomy of a Search Endpoint: Filter, Sort, Paginate, HATEOAS

Mon, 11 May 2026 00:00:00 +1000

Anatomy of a Search Endpoint: Filter, Sort, Paginate, HATEOAS

A walk through GET /api/1/sessions in the Laptime Insights server — from the Ktor route, down through the use case and persistence port, into the Exposed query, and back out as a HATEOAS page that the React frontend uses to render a sortable table.

The feature is small but it touches every layer, so it’s a good example of how clean architecture lets each concern live in exactly one place: the domain decides what’s sortable, the repository decides how that maps to a column, the resource decides how it appears on the wire, and the UI decides how to render it. Nothing leaks.