I presented this talk during Google Developer Group Developer Festival 2018 in Jakarta. This talk presents the usage of serverless Cloud Function & Google Cloud Vision API to extract information from Indonesia's e-KTP.

1. Imre Nagi
Traveloka Data
@imrenagi
Jakarta
Going Serverless w/
Cloud Function &
Vision API

2. Imre Nagi
Ping me @imrenagi
Previously:
Software Engineer @CERN @eBay Inc
Currently:
Software Engineer @Traveloka Data
Docker Community Leader, Indonesia

3. Agenda
Jakarta
● Serverless Architecture
● Cloud Function
● Cloud Vision API
● Demo

4. Serverless Architecture
Jakarta

5. Jakarta
iOS
Android
Web
Mobile Services REST API
Compute Engine
Text Analysis
Image Analysis

6. Jakarta
iOS
Android
Web
Mobile Services
Compute Engine
Text Analysis
Image Analysis
Mobile Services
Compute Engine
Text Analysis
Image Analysis
Mobile Services
Compute Engine
Text Analysis
Image Analysis
Cloud Load
Balancing

7. Jakarta
iOS
Android
Web
Mobile Services
Compute Engine
Text Analysis
Image Analysis
Mobile Services
Compute Engine
Text Analysis
Image Analysis
Mobile Services
Compute Engine
Text Analysis
Image Analysis
Cloud Load
Balancing
Cloud PubSub
API Service
Compute Engine

8. Jakarta
iOS
Android
Web
code()

9. Serverless Characteristic
● Server? Don’t care
● No upfront provisioning
● Scales as needed
● Stateless / ephemeral
https://www.slideshare.net/bretmc/serverless-with-google-cloud?from_action=save

10. Source: https://www.slideshare.net/bretmc/serverless-with-google-cloud?from_action=saveChart
Data Source Info
Serverless building block in Google
Cloud Platform

11. Function As
A Service (FaaS)
Jakarta

12. Cloud Function
Google Managed Serverless Block
A serverless environment to build and
connect cloud services with code Jakarta

13. Google Cloud Function
No server
management
Automatic
scaling
Pay as you go
Images taken from :https://www.slideshare.net/bretmc/serverless-with-google-cloud?from_action=save

14. Google Cloud Function Use Case
Images taken from :https://www.slideshare.net/bretmc/serverless-with-google-cloud?from_action=save

15. Google Cloud Function
Event-driven serverless architecture

16. Hello Serverless!
HTTP Trigger
// you know what it is trying to do
exports.helloHttp = (req, res) => {
res.send(`Hello Serverless Fans…:)`);
};
With Cloud function, you get
these benefits:
● HTTP Endpoint
● Fully Qualified Domain
● SSL/TLS cert
● Autoscaling
$ gcloud functions deploy helloHttp --entry-point
helloHttp --trigger-http

17. Chart Data Source Info
Cloud Event Trigger
Cloud Storage & PubSub
New file uploaded
Cloud
Storage
Cloud Function
triggers

18. Chart Data Source Info
Cloud Event Trigger
Cloud Storage & PubSub
Cloud Pub/Sub Cloud Function
triggers
bookingCreatedEvent {
“event_id”: “xas1sCz”,
“event_type”: “booking_created”,
“booking_id”: 1235123,
}

19. Chart Data Source Info
Cloud Event Trigger
Cloud Storage & PubSub
New file uploaded
Cloud
Storage
Cloud Function
triggers
publish
eKTPExtracted {
“nik”: “1423512478593247”,
“name”: “syaiful”,
“birthdate”: “Jakarta, 21-07-1967“,
}
Cloud Pub/Sub
Writes file

20. Cloud Vision API
Jakarta

21. Cloud Vision API
Google Powerful image analysis
Cloud Vision API enables developers to understand
the content of an image by encapsulating powerful
machine learning models in an easy-to-use REST API.
Jakarta

22. Text Detection
The Vision API can detect and extract text
from images
Optical Character Recognition
Image source: GCP Documentation

23. Label Detection

24. Multiple Object
Detection

25. DEMO
Jakarta

26. eKTP Information Extraction
Cloud Storage
Image
uploader
Http trigger
Text extraction
OCR Vision
Store file
Cloud
Trigger
Publish
Message
Cloud Pubsub
eKTPExtracted {
“nik”: “1423512478593247”,
“name”: “syaiful”,
“birthdate”: “Jakarta, 21-07-1967“,
}
eKTP
Information
Extraction
{"event_type":"text.recognized","data":{"results":[{"loc
ations":[],"properties":[],"mid":"","locale":"id","descripti
on":"PROVINSI DKI JAKARTAnJAKARTA
PUSATnNIKn3171082910720002nSYAHRIAL
AFFANDYnNamanTempat/Tgl Lah…...

27. Imre Nagi, Traveloka Data
@imrenagi
Jakarta
Thank you!

28. Jakarta
References
https://www.slideshare.net/bretmc/serverless-with-google-cloud?from_a
ction=save
https://cloud.google.com/icons/

29. Q&A
Jakarta