File size: 3,055 Bytes
bf48b89 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 | // Worker-specific cache module - KV-based implementation
// This file is used instead of index.ts when building for Cloudflare Workers
import { config } from '@/config';
import type CacheModule from './base';
import kv, { getKVNamespace } from './kv';
// Re-export setKVNamespace for use in app.worker.tsx
const globalCache: {
get: (key: string) => Promise<string | null | undefined> | string | null | undefined;
set: (key: string, value?: string | Record<string, any>, maxAge?: number) => any;
} = {
get: async (key) => {
if (key && kv.status.available && getKVNamespace()) {
const value = await getKVNamespace()!.get(key);
return value;
}
return null;
},
set: async (key, value, maxAge = config.cache.routeExpire) => {
if (!kv.status.available || !getKVNamespace()) {
return;
}
if (!value || value === 'undefined') {
value = '';
}
if (typeof value === 'object') {
value = JSON.stringify(value);
}
if (key) {
await getKVNamespace()!.put(key, value, { expirationTtl: maxAge });
}
},
};
// Use KV cache module for Worker
const cacheModule: CacheModule = kv;
export default {
...cacheModule,
get status() {
return kv.status;
},
/**
* Try to get the cache. If the cache does not exist, the `getValueFunc` function will be called to get the data, and the data will be cached.
* @param key The key used to store and retrieve the cache. You can use `:` as a separator to create a hierarchy.
* @param getValueFunc A function that returns data to be cached when a cache miss occurs.
* @param maxAge The maximum age of the cache in seconds. This should left to the default value in most cases which is `CACHE_CONTENT_EXPIRE`.
* @param refresh Whether to renew the cache expiration time when the cache is hit. `true` by default.
* @returns
*/
tryGet: async <T extends string | Record<string, any>>(key: string, getValueFunc: () => Promise<T>, maxAge = config.cache.contentExpire, refresh = true) => {
if (typeof key !== 'string') {
throw new TypeError('Cache key must be a string');
}
// Use KV cache if available
if (kv.status.available) {
let v = await kv.get(key, refresh);
if (v) {
let parsed;
try {
parsed = JSON.parse(v);
} catch {
parsed = null;
}
if (parsed) {
v = parsed;
}
return v as T;
} else {
const value = await getValueFunc();
kv.set(key, value, maxAge);
return value;
}
}
// Fallback: always call getValueFunc if KV is not available
const value = await getValueFunc();
return value;
},
globalCache,
};
export { setKVNamespace } from './kv';
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