Serverless

Serverless as a combination of DDD, Infra, Functional Programming

Transcript

1. SERVERLESS
   Andrzej Krzywda
   Arkency
   

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2. DEVTALK TRIO
   

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5. https://serverless.zone/serverless-is-just-a-name-we-could-have-called-it-jeff-1958dd4c63d7
   

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7. SERVERLESS
   AWS Lambda
   Azure Functions
   Google Cloud Functions
   

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8. 1 FUNCTION/METHOD
   PER
   1 MICROSERVICE
   

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9. SERVERLESS
   ==
   REDUCING MAINTENANCE
   

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18. SERVERLESS
    FUNCTION AS A SERVICE
    Cloud
    Functional programming
    Domain-Driven Design
    

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19. CLOUD
    

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20. INFRA/CLOUD
    Dedicated servers
    Virtual machines
    Microservices / BC?
    Kubernetes
    Serverless (function per service)
    

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21. ARE MICROSERVICES COOL?
    

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22. FUNCTIONAL
    PROGRAMMING
    

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23. immutability
    functions
    input/output
    provable(?)
    academic (?)
    

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24. WHEN IS FP USEFUL?
    

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25. DOMAIN-DRIVEN
    DESIGN
    

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26. DOMAIN DRIVEN DESIGN
    Bounded contexts
    Inventory, Invoicing, Accounting, SocialMedia
    Aggregates, sagas, read models
    Event-driven
    Event store
    

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27. CQRS
    Writes (commands)
    CancelOrder
    Reads (queries)
    OrdersList
    

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28. FP+DDD
    aggregates as functions
    read models as functions
    process managers as functions
    

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32. IS SERVERLESS
    PRODUCTION-READY?
    

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33. https://www.youtube.com/watch?v=i2gEbw_jzfY
    

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34. NO NEED TO WORRY ABOUT
    scaling
    monitoring
    recovery
    versioning
    logging
    

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35. HOW TO TEST?
    

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36. TESTING
    VS
    MONITORING
    

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37. IS SERVERLESS
    THE FUTURE?
    

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38. SERVERLESS
    ==
    REDUCING MAINTENANCE
    

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39. SCAFFOLDING
    Python
    JavaScript
    Java
    Scala
    

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40. THE NEW WAVE OF
    PROGRAMMERS REVOLUTION
    

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41. NEW WAVE OF PROGRAMMERS
    2004 - rails
    2015 - JS frontends
    2020 - serverless?
    

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42. POLYGLOTS
    

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43. THANKS!
    

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