firebase cloud functions

Firebase and cloud functions talk given at Google dev fest mumbai 2017

Transcript

1. Powering Your Apps With Firebase Cloud Functions + =
2. Nitish Phanse Senior Developer @ Kyepot @nitish24p
4. My site works on localhost now what
5. Serverless • No provisioning • Event Driven • Auto scale
7. Cloud Functions • Code hosted in the cloud • Node JS environment v6.9.1 • Connects to other google services like firebase. (req, res) => …
8. Authentication Database Hosting Storage Performance Functions Test Lab https://firebase.google.com/
9. Use cases of Firebase CFs • Real time database sanitization • Integrate with third party APIs • Analytics service • Cloud messaging
10. Let’s get started
11. Let’s get started
12. Let’s get started
13. Let’s get started
20. Function Triggers • Realtime Database / Firestore Triggers • Firebase Authentication Triggers • Cloud Storage Triggers • HTTP Triggers • Firebase Analytics Triggers
21. Database trigger • onWrite , onCreate, onUpdate • Path specific • Event data object (event.data)
22. Database trigger • onWrite , onCreate, onUpdate • Path specific • Event data object (event.data) OOPS !!!
24. ref(‘/posts/{id}’)
25. ref(‘/posts/{id}’) Trigger
 function Modifies
 event object
26. ref(‘/posts/{id}’) Trigger
 function Modifies
 event object ref(‘/posts/{id}’)
27. ref(‘/posts/{id}’) Trigger
 function Modifies
 event object ref(‘/posts/{id}’)
28. Prevent infinite loops
29. Prevent infinite loops Flag your data
30. Prevent infinite loops Flag your data Break function execution
31. Authentication trigger • New user signs up / signs in • Event data object (event.data)
32. Storage trigger • functions.storage.object() changes in default bucket • Event data object • other metadata
33. HTTPS trigger • Each function name => Url • GET, POST, PUT, DELETE • Terminate with send(), redirect(), end().
34. Putting it all together User 1
35. Putting it all together Sign up User 1 ref(‘/users’) ref(‘/fcmtokens’)
36. Putting it all together Sign up User 1 ref(‘/users’) ref(‘/fcmtokens’)
37. Putting it all together Sign up User 1 ref(‘/users’) ref(‘/fcmtokens’) push to analytics
38. Putting it all together Sign up User 1 ref(‘/users’) User 2 ref(‘/fcmtokens’) push to analytics
39. Putting it all together Sign up User 1 ref(‘/users’) User 2 ref(‘/messages’) ref(‘/fcmtokens’) push to analytics
40. Putting it all together Sign up User 1 ref(‘/users’) User 2 ref(‘/messages’) Fetch Tokens Send notifications to all Users ref(‘/fcmtokens’) push to analytics
41. The pain • Deployment takes time • Realtime logs are delayed in production • Accidental tight coupling
42. Thank you @nitish24p say hi.