Data Viewer

Admin-only data inspection extension for Caffeine AI.

Overview

Every Caffeine app ships with the caffeineai-data-viewer mops package and the moc --generate-view-queries flag enabled. Together with include MixinViews() in the actor, the compiler auto-exposes a controller-only __<var> query for every stable variable of a supported type:

• Map.Map<K, V> — (?K, ?Nat) -> [(K, V)]
• Set.Set<K> — (?K, ?Nat) -> [K]
• [V], [var V], List.List<V>, Stack.Stack<V>, Queue.Queue<V> — (?Nat, ?Nat) -> [V]

A null cursor starts at the beginning; a null count returns everything from the cursor. Each generated query traps on any non-controller caller — they exist for admin dashboards and debug viewers, not user-facing endpoints.

Backend

The package and include are already wired into the template. You don't need to add or edit anything for the viewer to work — declare a stable variable of a supported type and the __<var> query appears automatically.