How to build an API from gae and pubsub.

1. Order API
Google App Engine with Google PubSub

2. Overview
● Order API
● Data FLow
● Google App Engine & Google PubSub
● Security & Monitoring

3. To the begining

4. Data Flow
B Gomaji
New Order
Order Update
DB
PUSH

5. Issues
B Gomaji
New Order
Order Update
DB
PUSH
Response
Time ?

6. QUEUE
QUEUE
API Handler
DB
PUSH

7. IF …
● More and more orders
● Need to Scale up
● How to cost down

8. GCP - Google App Engine
● PHP
● Easy to deploy
● 28 instance hour FREE !

9. GCP - PubSub
● SDK for PHP
● almost no limit
● QUEUE service

10. Result
API
Pub/Sub buyconnector
DB
Redis

11. Logging & Security
● Google DataStore
● Google App Engine Firewall rules

12. Monitoring & Alert
● Stackdriver

13. Q & A