Functions used in Emulators

index.js

const functions = require('firebase-functions');
const admin = require('firebase-admin');
admin.initializeApp();

exports.addDate = functions.firestore.document('users/{userId}')
    .onCreate(async (snapshot, context) => {        
        try {
            return await admin.firestore().doc(snapshot.ref.path)
                .update({
                    createdAt: 'today'
                });
        }catch(e) {
            console.log('erro na execução');
            return console.log(e);
        }
    });


exports.hello = functions.https.onRequest((req, res) => {
    res.send('HELLO WORLD');
});

exports.addDateRTDB = functions.database.ref('users/{userId}')
    .onCreate(async (snapshot, context) => {
        try {
            return await admin.database().ref(snapshot.ref.path)
                .update({
                    createdAt: 'TODAY'
                })
        }catch(e) {
            return console.error(e);
        }
    });