1. Data-driven serverless apps with Azure functions
Anton Boyko
Microsoft Azure MVP

2. Serverless?

3. Developer maturity level
Junior
How can I do it?
Middle
How can I do it more elegantly?
Senior
How can I NOT do it?

4. Traditional server Fixed reserved CPU Fixed reserved RAM
Pay for reserved resourced

5. Serverless On-demand CPU (per second) On-demand RAM (per Mb)
Pay for number of executions and on- demand resources consumed

6. Abstraction of servers
Serverless
Abstraction of servers
Sub-second billing
Event-driven scale
Abstraction of servers, infrastructure and configuration of operating system
Event-driven scale
Sub-second billing
Stateless

7. Azure functions?

8. I have a “code”
I have an “event data”

9. I have a “code”
I have an “event data”
BOOM!

10. Stateless Small Single unit of work C# F# HTTP(S) Java Timer NodeJS
Python
PowerShell …
HTTP(S)
Timer
Queue
Storage …
Azure Functions
Stateless
Small
Single unit of work

11. function.json

12. run.csx

13. Applications

14. Example: Timer based processing
Every 15 minutes
Clean table
Find and clean invalid data

15. Example: Azure service event processing
File added to
Blob Storage
Transform CSV to data rows
CSV
Power BI
Chart

16. Example: SaaS event processing
Excel file saved
to OneDrive
Microsoft Graph API analyzes content
Creates new sheet
With Charts

17. Example: Serverless Web Applications architectures
Loaded web page
calls WebHook
Completed page
Create ad based on user profile

18. Example: Serverless Mobile back ends
Photo taken and
WebHook called
Stores in blob storage
Produces scaled images

19. Example: Real-time stream processing
Millions of devices feed
into Stream Analytics
Store data in
SQL Database
Transform to structured data

20. Example: Real-time bot messaging?
...
Cortana Analytics answers questions
Message sent
to Chatbot
Chatbot sends
response

21. Toolset

22. Azure Storage Emulator https://docs. microsoft
Azure Storage Emulator use-emulator
Azure Storage Explorer
Azure Functions CLI
Azure Functions Tools for Visual Studio ual-studio-tools-for-azure-functions/
Azure Functions Tools for Visual Studio re-function-tools-for-visual-studio-2017/
Azure Functions Docs functions/functions-overview

23. Demo

24. Azure Functions
Приступаем к работе с Azure Functions используя утилиты командной строки
Разбор структуры проекта Azure Functions Queue Trigger
Разбор структуры проекта Azure Functions Blob Trigger
Запускаем Azure Functions локально используя эмулятор

25. Precompiled Azure Functions
Concept /16/publishing-a-net-class-library-as-a-function-app/
Demo