Remote Config Cloud Function

remote-config-cloud-function.js

const functions = require('firebase-functions');
const admin = require('firebase-admin');
​
admin.initializeApp(functions.config().firebase);
​
exports.pushConfig = functions.remoteConfig.onUpdate(metadata => {
    const payload = {
        data: {
            CONFIG_STATE: 'STALE'
        }
    };
​
    const options = {
        content_available: true
    };
​
    // Use the Admin SDK to send the ping via FCM.
    return admin
        .messaging()
        .sendToTopic('REMOTE_CONFIG', payload, options)
        .then(response => {
            console.log(response);
        
            return null;
        });
});