workspace-integrations/lib/cache.js

Webex Workspace Integrations NodeJS SDK

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const cacheSec = 60 * 60;
/**
 * Cache for remembering values that change relatively seldom,
 * such as device and workspace metadata.
 */
class Cache {
    constructor() {
        this.store = {};
    }
    async fetch(http, url) {
        if (this.get(url)) {
            // console.log('got cached', url);
            return this.get(url);
        }
        const res = await http.get(url);
        // console.log('fetch', url);
        this.set(url, res);
        return res;
    }
    get(resource) {
        const record = this.store[resource];
        if (record) {
            const age = (Date.now() - record.created) / 1000;
            // console.log('age', age, 's vs', cacheSec, 's');
            if (age < cacheSec) {
                // console.log('got cached', resource);
                return record.value;
            }
        }
        return null;
    }
    set(resource, value) {
        this.store[resource] = {
            created: Date.now(),
            value,
        };
    }
}
exports.default = Cache;