45 lines
1.2 KiB
TypeScript
45 lines
1.2 KiB
TypeScript
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// Copyright 2022 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import type { ExplodePromiseResultType } from '../util/explodePromise';
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import type { UUIDStringType } from '../types/UUID';
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import { UUID } from '../types/UUID';
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// This module provides single serve promises in a pub/sub manner.
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// One example usage is if you're calling a redux action creator but need to
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// await some result within it, you may pass in this promise and access it in
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// other parts of the app via its referencing UUID.
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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const promises = new Map<UUIDStringType, ExplodePromiseResultType<any>>();
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export function set<T>(
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explodedPromise: ExplodePromiseResultType<T>
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): UUIDStringType {
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let uuid = UUID.generate().toString();
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while (promises.has(uuid)) {
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uuid = UUID.generate().toString();
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}
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promises.set(uuid, {
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promise: explodedPromise.promise,
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resolve: value => {
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promises.delete(uuid);
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explodedPromise.resolve(value);
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},
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reject: err => {
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promises.delete(uuid);
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explodedPromise.reject(err);
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},
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});
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return uuid;
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}
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export function get<T>(
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uuid: UUIDStringType
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): ExplodePromiseResultType<T> | undefined {
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return promises.get(uuid);
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}
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