Firebase functions campaign cronjob

index.ts

import * as timeUtils from "./util/time_utils";

const functions = require("firebase-functions");
const admin = require("firebase-admin");

admin.initializeApp();

// Remote config:
// {
// "discount_start_date": "2021.10.23 00:00:00",
// "discount_end_date": "2021.10.26 00:00:00",
// "discount_type": "_discount_common",
// "discount_rate": "0.74"
// }

const PARAMETERS_KEY = "parameters";
const DISCOUNT_DATA_KEY = "discount_info";
const DEFAULT_VALUE_KEY = "defaultValue";
const DISCOUNT_DATE_START_KEY = "discount_start_date";
const DISCOUNT_DATE_END_KEY = "discount_end_date";
const DISCOUNT_TYPE_KEY = "discount_type";
const DISCOUNT_RATE_KEY = "discount_rate";
const DISCOUNT_SUFFIX_COMMON = "_discount_common";
const DISCOUNT_RATE = "0.74";

exports.scheduledFunction = functions.pubsub.schedule("every 47 hours").onRun(() => {
    setupCampaignConfig();
    return null;
});

function setupCampaignConfig() {
    getUpdatedConfigTemplate().then((template) => {
        validateTemplate(template);
    });
}

async function getUpdatedConfigTemplate() {
    var config = admin.remoteConfig();
    const template = await config.getTemplate();
    console.log("ETag from server: " + template.etag);

    var templateStr = JSON.stringify(template);
    console.log("Template: " + templateStr);

    let values = template[PARAMETERS_KEY][DISCOUNT_DATA_KEY][DEFAULT_VALUE_KEY];
    console.log("Values: " + JSON.stringify(values));

    values.value = "{"
        + "\"" + DISCOUNT_DATE_START_KEY + "\":\"" + timeUtils.getDifferentDate(-1).toString() + "\","
        + "\"" + DISCOUNT_DATE_END_KEY + "\":\"" + timeUtils.getDifferentDate(2).toString() + "\","
        + "\"" + DISCOUNT_TYPE_KEY + "\":\"" + DISCOUNT_SUFFIX_COMMON + "\","
        + "\"" + DISCOUNT_RATE_KEY + "\":\"" + DISCOUNT_RATE + "\""
        + "}"


    console.log("New Template: " + JSON.stringify(template));
    console.log("New Values: " + JSON.stringify(values));

    return template;
}

function validateTemplate(template: any) {
    admin.remoteConfig().validateTemplate(template)
        .then(function (validatedTemplate: any) {
            console.log("Template was valid and safe to use");
            publishTemplate(validatedTemplate);
        })
        .catch(function (err: any) {
            console.error("Template is invalid and cannot be published");
            console.error(err);
        });
}

function publishTemplate(template: any) {
    var config = admin.remoteConfig();
    config.publishTemplate(template)
        .then(function (updatedTemplate: any) {
            console.log("Template has been published");
            console.log("ETag from server: " + updatedTemplate.etag);
        })
        .catch(function (err: any) {
            console.error("Unable to publish template.");
            console.error(err);
        });
}

time_utils.ts

import * as moment from 'moment';

const CONFIG_DATE_FORMAT = 'YYYY.MM.DD HH:00:00';

export function getDifferentDate(daysDifference: number, referenceDate: Date = new Date()) {
    return (moment(referenceDate)).add(daysDifference, 'days').format(CONFIG_DATE_FORMAT)
}