abby-client/lib/sync.js

This is the client library for Greetz's very own A/B testing platform.

'use strict';
const rp = require('request-promise-native');

const ABBY_EXPERIMENTS_KEY = Symbol("__abbyExperiments");
const ABBY_TIMEOUT_KEY = Symbol("__abbyTimeout");
const UPDATE_INTERVAL = 60000 * 5; // 5 minutes

let load = async (/**Configs*/configs) => {
    let options = {
        uri: `${configs.apiEndpoint}/experiments`,
        qs: {
            tag: [configs.tags]
        },
        json: true
    }

    let /**Array.<Experiment>*/experiments = await rp(options);
    global[ABBY_EXPERIMENTS_KEY] = experiments;

    if(!global[ABBY_TIMEOUT_KEY]) {
        global[ABBY_TIMEOUT_KEY] = setTimeout(() => sync(configs, UPDATE_INTERVAL));
    }
    return experiments;
};


let sync = {
    load
};

Object.defineProperty(sync, "data", {
    get: () => {
        return global[ABBY_EXPERIMENTS_KEY];
    }
});

module.exports = sync;