Design and architectural principles for auto-scalable REST APIs using the YAWP! Framework and the Google Cloud Platform. Take away: The presentation has a live demo with complete source code showing how to create a simple posts+likes API, which is a common requirement for social apps.

1. Auto-Scalable
REST APIs
withYAWP! and Google Cloud

2. Hello!
• Full-stack developer since 1998
• Operations manager Dextra
• Creator of YAWP! Framework
• Google Cloud GDE
@feroult

3. You’ve got
an idea!

4. It is an Mobile
APP?

5. You just build it.

6. Beautiful, Shinning
App

7. Your users LOVE IT

8. Now you just need
to scale, and…

9. Let the money
FLOW

10. But WAIT

11. You’ve got your backend
from your buddy developer

12. Things start to get

13. Auto-Scalable APIs

14. A simple problem

15. The model
Post Like*
COUNT

16. not that simple

19. select post, sum(count)
from likes
group by post

20. A little bit
of theory

21. Stateless
Sharding
Asynchronous
Automated

22. Stateless

23. No client affinity

25. Sharding

26. Sharding the database
• High-throughput for writes and reads
• Distributed instances
• Shard Key
• Replication
• No data joins across tables

27. The hard work

28. Sharding the database
POST /likes
Routing
Shard
Key
replication
bye bye joins
shard
groups

29. Eventual consistency

30. Eventual consistency
GET /likes?post=1
hot instances
eventual replication

31. Strong consistency

32. Strong consistency
GET /likes?post=1
hot instances
wait transactions

33. Asynchronous

34. Async flow your data
to different outlets

36. Automated

38. Tools and Platforms

39. Stateless
Sharding
Asynchronous
Automated

40. YAWP! and
Google Cloud

41. Google Cloud Platform

42. YAWP! Adds UP

44. not that simple

47. Pipes

48. Fork-Join Queues

49. Asynchronous pipelines
Like Post Author
POST /likes GET /posts GET /authors

50. Asynchronous pipelines
POST /likes
accumulators
Like Post
GET /posts
sequencing

52. Final Thoughts

53. Thanks!
• Demo code
github.com/feroult/like-demo
• YAWP!
yawp.io
@feroult