Akka has become a very successful platform for building reactive systems.  At its core, the Akka-actor module implements the actor model. Surprisingly enough, although Scala and Java are type-safe languages, Akka actors are untyped. This means that we can only handle specific ones - the compiler is not ready to help us. This pdf will walk through how to add the type parameter to the ActorRef and reduces the runtime error.

1. Welcome !!
Akka Typed
Presented By : Prabhat Kashyap

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Agenda
What is Akka
Untyped API Demo
What new in Typed API
Demo
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My name is Prabhat Kashyap and I am a backend Scala
developer, currently living in New Delhi, India. I have a
master’s degree in computer application and currently
working with Knoldus Inc., which is world’s largest
pure-play Scala Spark services company as a Senior
Software Consultant. I started my career in software
development two and a half years ago and since then
working on Scala.
I am part of the development team responsible for developing
the application of different domain using functional approach.
I also possess the knowledge of Akka, Apache Kafka,
Carbondata and Blockchains. If you want to know more about
me or have a chat, you can connect with me on LinkedIn
https://www.linkedin.com/in/prabhatkashyap92/
@whoami

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❑ A open source project started by Jonas Bonér in 2009.
❑ Akka’s use of the actor model provides a level of abstraction that makes it easier to write correct concurrent, parallel
and distributed systems.
❑ Consequently, organizations building distributed systems with demanding requirements encounter challenges that
cannot fully be solved with a traditional object-oriented programming (OOP) model, but that can benefit from the
actor model.
What is Akka

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❑ The actor model was proposed decades ago by Carl Hewitt as a way to handle parallel processing in
a high performance network.
❑ Send a finite number of messages to other actors.
❑ Create a finite number of new actors.
❑ Designate the behavior to be used for the next message it receives.
What is Actor?

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❑ An actor system manages the resources it is configured to use in order to run the actors which it
contains.
❑ The actor system as a collaborating ensemble of actors is the natural unit for managing shared
facilities like scheduling services, configuration, logging, etc.
What is Actor System?

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Let’s create an sample untyped actor
application.

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❑ ActorRef[T]
❑ Behavior
❑ There is no sender() function anymore
What’s new in Akka Typed

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Let’s create an sample typed actor
application.

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❑ Supervision and Monitoring
❑ Stream
❑ Cluster
❑ Persistence
❑ Testing
What else is there?

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Heiko Seeberger
http://heikoseeberger.rocks
Thanks for Inspiring

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Resources
Akka Documentation
Akka Blogs

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Thank YouHappy Hakking