singleFromAny()

Keyed singleflight over {@link NodeInput}.

Import

import { singleFromAny } from "@graphrefly/ts/sources";

Signature

function singleFromAny(
  factory: (key: K) => NodeInput<T>,
  opts: SingleFromAnyOptions<K> = {},
): (key: K) => Promise<T>

Parameters

Parameter	Type	Description
factory	(key: K) => NodeInput<T>	Function that produces a value, iterable, promise, or node for each key.
opts	SingleFromAnyOptions<K>	Optional key canonicalizer and iterable handling.

Returns

A memoizing loader keyed by the transformed key.

Example

const loadUser = singleFromAny((id: string) => fetch(`/api/users/${id}`).then((r) => r.json()));

Remarks

• Host-boundary helper only. It deduplicates external calls and does not create graph topology or act as a graph operator.

Source

packages/ts/src/graph/sources.ts