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26 lines
778 B
26 lines
778 B
import * as NodeCache from 'node-cache';
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import { IAuthentication } from './types/Authentication';
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/**
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* this is just a simple abstraction to provide
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* an application layer for caching credentials
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*/
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export class Authentication implements IAuthentication {
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cache = new NodeCache();
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constructor(private authenticator: IAuthentication) {}
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async authenticate(username: string, password: string): Promise<boolean> {
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const cacheKey = `usr:${username}|pwd:${password}`;
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const fromCache = this.cache.get(cacheKey) as undefined | boolean;
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if (fromCache !== undefined) {
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return fromCache;
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}
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const authResult = await this.authenticator.authenticate(username, password);
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this.cache.set(cacheKey, authResult, 86400); // cache for one day
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return authResult;
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}
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}
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