exports.sendNotification = functions.https.onRequest((request,response) =>{
        var instanceId = "ff1mVdJKDJ4:APA91bEojZyqpQ4EtoegJVSYFifYT_OiZtOUR4Ls9C5S5A8xtK6v85aSWRmzqWPPd1OVoUuJnoPGJgjSMhT6H4cOYYTCrpAJXygd5VCEuWE3jZdv5Qj09zeLpNksqtruhY4f8XqEI9Lv";
        const payload = {
            notification: {
                title:"Prueba desde cloud functions",
                body:"Hola"
            }
        };
        admin.messaging
        admin.messaging().sendToDeviceGroup
        admin.messaging().sendToDevice(instanceId,payload)
        .then(function (response) {
            console.log("Successfully sent message:", response);
        })
        .catch(function (error) {
            console.log("Error sending message:", error);
        });
    });