Cloud Functions para Firebase

Talk apresentada no Google I/O Extended (Relâmpago) - GDG Campinas.

#firebase #functions

Transcript

1. Cloud Functions para Firebase
2. Olá! Sou Felipe Arimatéia Desenvolvedor Mobile na CI&T, e organizador do GDG BH e Android Meetup BH
3. 1. Cloud Functions
4. “ O Cloud Functions para Firebase permite que você execute tarefas no backend em resposta a eventos do Firebase e requisições HTTP.
5. Eventos do Firebase ◍ Realtime Database ◍ Authentication ◍ Analytics ◍ Storage ◍ Cloud Pub/Sub ◍ HTTP
6. Como funciona?
7. https://medium.com/@rosariopfernandes/firebase-cloud-functions-f6ed378 7fa8d
8. Projeto
9. https://medium.com/@rosariopfernandes/fcf-comecar-32c984dbc12
10. Contando likes
11. Realtime Database exports.countLikes = functions.database.ref('messages/{$messageId}/likes').onWrite(event => { return event.data.ref.parent.child('likes_count').set(event.data.numChildren()); });
12. Adicionando novos usuários
13. Firebase Authetication exports.newUser = functions.auth.user().onCreate(event => { const user = event.data; const email = user.email; const displayName = user.displayName; const uid = user.uid; const photoURL = user.photoURL; return admin.database().ref("/users").child(uid).update({"uid":uid, "email":email, "displayName":displayName, "photoURL":photoURL}) })
14. Executando tarefas após o upload de arquivos
15. Firebase Cloud Storage exports.createMessagePhoto = functions.storage.object().onChange(event => { const object = event.data; const file = gcs.bucket(object.bucket).file(object.name); const metadata = object.metadata // Exit if this is a move or deletion event. if (object.resourceState === 'not_exists') { return console.log('This is a deletion event.'); } //... })
16. Console
21. Preço
22. GitHub https://github.com/felipearimateia /firechat
23. Obrigado! Perguntas? Contatos @twiterdoari & felipearimateia@gmail.com