smartcache/ts/smartcache.classes.smartcache.ts
2020-02-03 20:08:57 +00:00

26 lines
1000 B
TypeScript

import * as plugins from './smartcache.plugins';
import { CacheManager } from './smartcache.classes.cachemanager';
export class SmartCache {
private _cacheManager = new CacheManager();
async cacheReturn(asyncCachedFuncArg: () => Promise<any>, cacheDuration: number = 5000) {
const callStack: string = new plugins.smarterror.SmartError('Cache Creation Point').cleanFullStack.split('\n')[2];
const callHash = plugins.smarthash.sha256FromStringSync(callStack);
// console.log(callHash);
if (
this._cacheManager.cacheExists(callHash) &&
(await this._cacheManager.waitForCacheReady(callHash)) &&
this._cacheManager.stillValid(callHash)
) {
return this._cacheManager.getCache(callHash).cachedObject;
} else {
this._cacheManager.announceCache(callHash, cacheDuration);
const newCachedObject = await asyncCachedFuncArg();
this._cacheManager.setCache(callHash, newCachedObject, cacheDuration);
return newCachedObject;
}
}
}