Thomas Camlong
33293ba1cf
- cache-invalidation: extract isExpectedRevalidateError helper - integration-data-cache: flatten early-return chain, extract eviction - redis-handler: extract StoredEntry type, readStreamBody, ensureConnected - svg-purify: single getOwnPropertyDescriptor lookup per prop - session-scoped-providers: simplify auth flow - retryable-loader: use function declarations - translation/request: replace spread-in-reduce with for loop
19 lines
580 B
TypeScript
19 lines
580 B
TypeScript
export function createRetryableLoader<TKey, TValue>(loaders: ReadonlyMap<TKey, () => Promise<TValue>>) {
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const promises = new Map<TKey, Promise<TValue>>();
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return function load(key: TKey) {
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const existing = promises.get(key);
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if (existing) return existing;
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const loader = loaders.get(key);
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if (!loader) throw new Error(`No loader is registered for ${String(key)}`);
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const promise = loader();
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promises.set(key, promise);
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void promise.catch(() => {
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if (promises.get(key) === promise) promises.delete(key);
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});
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return promise;
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};
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}
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