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fix: unblock query cache mutations in demo mode and add cache buster (#6176)

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Thomas authored and GitHub committed 2026-07-04 10:47:09 +02:00
1 parent 529942e4da
commit a382c75968
7 files changed
+52 -104
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packages/request-handler/src/lib/request-handler.ts
+40 -38
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@@ -6,12 +6,9 @@ interface Options<TData, TInput extends Record<string, unknown>> {
type CacheEntry<TData> = { data: TData; timestamp: Date; expiresAt: number };
const MAX_CACHE_SIZE = 1000;
const cache = new Map<string, CacheEntry<unknown>>();
const inflight = new Map<string, Promise<CacheEntry<unknown>>>();
const DEFAULT_TTL_MS = 10_000;
const evictExpired = () => {
const evictExpired = <TData>(cache: Map<string, CacheEntry<TData>>) => {
const now = Date.now();
for (const [key, entry] of cache) {
if (now >= entry.expiresAt) cache.delete(key);
@@ -20,41 +17,46 @@ const evictExpired = () => {
export const createRequestHandler = <TData, TInput extends Record<string, unknown>>(
options: Options<TData, TInput>,
) => ({
handler: (input: TInput) => ({
async getDataAsync(): Promise<{ data: TData; timestamp: Date }> {
const ttl = options.cacheTtlMs ?? DEFAULT_TTL_MS;
const key = JSON.stringify(input);
) => {
const cache = new Map<string, CacheEntry<TData>>();
const inflight = new Map<string, Promise<CacheEntry<TData>>>();
const cached = cache.get(key) as CacheEntry<TData> | undefined;
if (cached && Date.now() < cached.expiresAt) {
return { data: cached.data, timestamp: cached.timestamp };
}
if (cached) cache.delete(key);
return {
handler: (input: TInput) => ({
async getDataAsync(): Promise<{ data: TData; timestamp: Date }> {
const ttl = options.cacheTtlMs ?? DEFAULT_TTL_MS;
const key = JSON.stringify(input);
const existing = inflight.get(key);
if (existing) return existing as Promise<CacheEntry<TData>>;
const cached = cache.get(key);
if (cached && Date.now() < cached.expiresAt) {
return { data: cached.data, timestamp: cached.timestamp };
}
if (cached) cache.delete(key);
const promise = options
.requestAsync(input)
.then((data) => {
if (cache.size >= MAX_CACHE_SIZE) evictExpired();
if (cache.size >= MAX_CACHE_SIZE) {
const oldest = cache.keys().next().value;
if (oldest) cache.delete(oldest);
}
const entry: CacheEntry<TData> = { data, timestamp: new Date(), expiresAt: Date.now() + ttl };
cache.set(key, entry as CacheEntry<unknown>);
inflight.delete(key);
return entry;
})
.catch((err) => {
inflight.delete(key);
throw err;
});
const existing = inflight.get(key);
if (existing) return existing;
inflight.set(key, promise as Promise<CacheEntry<unknown>>);
return promise;
},
}),
});
const promise = options
.requestAsync(input)
.then((data) => {
if (cache.size >= MAX_CACHE_SIZE) evictExpired(cache);
if (cache.size >= MAX_CACHE_SIZE) {
const oldest = cache.keys().next().value;
if (oldest) cache.delete(oldest);
}
const entry: CacheEntry<TData> = { data, timestamp: new Date(), expiresAt: Date.now() + ttl };
cache.set(key, entry);
inflight.delete(key);
return entry;
})
.catch((err) => {
inflight.delete(key);
throw err;
});
inflight.set(key, promise);
return promise;
},
}),
};
};