Cloud function que genera un nuevo identicon basado en el correo electronico del usuario, usando el servicio de gravatar.

newUser-with-identicon.ts

import * as functions from "firebase-functions";
import * as admin from 'firebase-admin';
import UserRecord = admin.auth.UserRecord;
import {EventContext, logger} from "firebase-functions";
import {Md5} from 'ts-md5';

admin.initializeApp({ projectId: 'villanuevand-labs' });

export const newUser = functions.auth.user().onCreate(async (user: UserRecord, context: EventContext) =>  {
    logger.info('Usuario original',{user});
    try {
        let updateUserInfo;
        const hash = Md5.hashStr(`${user.email}`);
        if(!user.photoURL) {
            updateUserInfo = await admin.auth().updateUser(user.uid, {
                photoURL: `https://www.gravatar.com/avatar/${hash}.jpg?d=identicon`
            });
        }

        logger.info('Se actualizo correctamente', {updateUserInfo});
    } catch (e) {
        logger.error('Hubo un error en la función newUser', e)
    }
    
});