Presented at ServerlessConf NYC2016. The [webtask.io](https://webtask.io) microservice platform has been created and is used internally at [Auth0](https://auth0.com) to support multi-tenant SaaS extensibility through custom code, in cloud and on-premise. In this talk I will describe our journey from the driving scenario, the choice of a "better web hook" paradigm to address it, the architecture and design decisions we've made along with the mistakes and changes the system has undergone. I will also provide an insight into a security model that makes webtask.io platform uniquely suited to be used directly over HTTP from HTML5 or mobile apps. Docker, Node, ZeroMQ, Mongo, and more.

1. Tomasz Janczuk (@tjanczuk)
Auth0
Webtaskalifragilisticexpialidocious

2. Tomasz Janczuk (@tjanczuk)
Auth0
Webtaskalifragilisticexpialidocious

3. All roads lead to
serverless
Image Background
● Better abstractions
● Zero maintenance
● Easy scalability
● Granular billing

4. We started our
serverless
journey
scratching our
own itch
Image Background

5. Webhooks offer
ultimate flexibility
for SaaS
extensibility
Image Background

6. Webhooks
are so 2015...
Image Background
● Mostly async
● Servers
● Maintenance
● Scaling
● Monitoring
● Separate billing
● SSL
● Toil, grief, and tears

7. Image Background
Webtask is
a webhook
with server
included
Serverless
webhook

8. Webtask design
priorities
Image Background
● Isolation
● HTTP fidelity
● Node.js
● Low latency
● Cloud and on-premise
● Scalability
● Developer love

9. Image Background
Isolation: preventing
Mallory from fouling
the game

10. Start simple:
zero provisioning
Result
HTTPS POST
Container + code
Webtask
runtime

11. Power to the dev:
full HTTP control
Result
HTTPS {verb} {name}
Data
Webtask
runtime
HTTPS POST {name}
Code + secrets

12. Scheduled work Webtask
runtime
HTTPS POST {name}
Code + secrets +
schedule
CRON

13. You can use any
language and
framework*
*as long as it is Node.js

14. How did we
make cold
latency
hot again?

15. Running in cloud
and on-premise with
thin dependencies

16. Scale out for
throughput, scale
up for tenants
High
throughput
Many tenants
Low
throughput
Few tenants
Scale-out
Scale-upEasy
Dragons be here

17. Developer
love:
all you need
is code

18. Tomasz Janczuk (@tjanczuk)
Auth0
Webtaskalifragilisticexpialidocious
https://webtask.io
Thank you!

19. When things go
south

20. Real-time
logging

21. Kafka: what is wrong with this
picture?

22. Stability vs work-life balance

23. Kafka has died, long live ZeroMQ

24. Simple is beautiful

25. Tomasz Janczuk (@tjanczuk)
Auth0
Webtaskalifragilisticexpialidocious