¶Settings store

A small persistent key-value store for app settings and light state — always available, no feature flag. Values are arbitrary JSON, saved to a settings.json file in the OS config directory (keyed by the About name). For real data, use the database feature instead.

¶Frontend API (@elyra/runtime)

import { store } from "@elyra/runtime";

await store.set("theme", "dark");
await store.set("window", { pinned: true, tab: 3 });

const theme = await store.get<string>("theme");   // "dark" | null
const all = await store.all();                     // Record<string, unknown>

await store.delete("theme");
await store.clear();

¶Rust API

The store is bound in the container, so commands can use it too:

use elyra::Store;

#[command]
async fn remember(ctx: Ctx, key: String, value: serde_json::Value) {
    ctx.get::<Store>().set(key, value);
}

Store exposes get, set, delete, all, and clear. Writes persist immediately.

¶Related

• Database — for structured, queryable data.
• Windows — persist_window_state uses the same config directory.