useSubscribeRecord() (Svelte)

Subscribe to a dynamic set of keyed store records as a Svelte readable store.

When keys changes, old per-key subscriptions are torn down and rebuilt.

Signature

function useSubscribeRecord<K extends string, R extends Record<string, any>>(
  keys: Store<K[]>,
  factory: StoreFactory<K, R>,
): SvelteReadable<Record<K, R>>

Parameters

Parameter	Type	Description
keys	Store<K[]>	Store of current keys (for example node IDs).
factory	StoreFactory<K, R>	Returns a { [field]: Store<V> } object for each key.

Returns

SvelteReadable<Record<K, R>> - Svelte-readable keyed snapshot.

Basic Usage

<script lang="ts">
  const nodeData = useSubscribeRecord(nodeIds, (id) => ({
    status: statusById[id],
    breaker: breakerById[id],
  }));
</script>

See Also

• Generic overview: /api/useSubscribeRecord
• useSubscribe() (Svelte): /api/useSubscribeSvelte