Akka Streams with Scala

In this course, we will learn how to write reactive distributed applications using the powerful Akka Streams. You'll write 2000+ lines of Akka code yourself, with guidance, and you will become a rockstar.

This course is for Scala/Akka programmers who need to design large-scale reactive asynchronous systems.

You probably know Akka already:

it speeds up the development of concurrent applications by as much as 10x
its demand has exploded
it's a highly marketable skill
it's incredibly fun - power in your hands.

I like to get to the point and get things done. This course

deconstructs all concepts into the critical pieces you need
selects the most important ideas and separates them into what's simple but critical and what's powerful
sequences ideas in a way that "clicks" and makes sense throughout the process of learning
applies everything in live code

The end benefits are still much greater:

a completely new mental model around streaming and reactive systems
a more marketable resume
more enjoyable work - Akka is fun.

This course is for established programmers with experience with Scala and Akka at the level of the Rock the JVM courses. I already assume a solid understanding of general programming fundamentals.

This course is NOT for you if

you've never written Scala code before
you've never worked with Akka

The course is comprehensive, but you'll always see me get straight to the point. So make sure you have a good level of focus and commitment to become a badass programmer.

I believe both theory and practice are important. That's why you'll get lectures with code examples, real life code demos and assignments, plus additional resources, instructions, exercises and solutions.

I've seen that my students are most successful - and my best students work at Google-class companies - when they're guided, but not being told what to do. I have exercises waiting for you, where I offer my (opinionated) guidance but otherwise freedom to experiment and improve upon your code.

Definitely not least, my students are most successful when they have fun along the way.

So join me in this course and let's rock the JVM.

What's inside

Learning objectives

Learn advanced akka with asynchronous streams
Understand backpressure and the principles of reactive streams
Adopt a new mental model with materialization

Construct large-scale streams with the akka streams graph dsl
Control akka streams logic with graph stages
Internalize the best practices

Learn advanced akka with asynchronous streams
Understand backpressure and the principles of reactive streams
Adopt a new mental model with materialization
Construct large-scale streams with the akka streams graph dsl
Control akka streams logic with graph stages
Internalize the best practices

Syllabus

Introduction

Welcome

How to Make the Best out of This Course

Scala Recap

Akka Recap

Akka Streams Primer

First Principles

Materializing Streams

Operator Fusion and Async Boundaries

Backpressure

Akka Streams Graphs

Intro to Graphs and the Graph DSL

Open Graphs and Graph Shapes

More Open Graphs and Graph Shapes

Graph Materialized Values

Bidirectional Flows

Graph Cycles

Akka Streams Techniques and Patterns

Integrating with Actors

Integrating with External Services

Advanced Backpressure

Fault Tolerance and Error Handling

Testing Akka Streams

Advanced Akka Streams

Dynamic Stream Handling

Substreams

Custom Graph Shapes

The Ultimate Power: Custom Operators with Graph Stages

Custom Operators, Part 2

Epilogue

You Rock!

Good to know

Know what's good

, what to watch for

, and possible dealbreakers

Develops advanced Akka concepts such as stream graphs, materialized values, and error handling, which are all in-demand skills in industry

Taught by Daniel Ciocîrlan, a renowned Akka expert and author of several books on the subject

Provides hands-on practice with exercises and assignments, allowing learners to apply their knowledge and improve their code

Covers advanced topics such as dynamic stream handling, substreams, and custom operators, which are essential for building large-scale reactive systems

Requires a strong foundation in Scala and Akka, making it suitable for experienced Scala/Akka developers looking to enhance their skills

Reviews summary

According to students, Akka Streams with Scala is a highly-rated course that covers all the essential concepts of Akka and provides practical examples of using it.

Provides practical examples of using Akka.

"The course... gives some practical examples of using (Akka streams)."

Covers all the important concepts of Akka Streams.

"The course describes the most important concepts of Akka streams"

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Akka Streams with Scala | Rock the JVM with these activities:

Review Scala programming fundamentals

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Refreshing Scala fundamentals strengthens the foundation for understanding Akka Streams.

Browse courses on Scala

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Revisit basic Scala concepts such as data types, variables, and control flow.
Practice writing simple Scala programs to reinforce understanding.
Review Scala documentation or online resources for reference.

Mentor a junior Scala/Akka developer on Akka Streams

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Mentoring others solidifies your knowledge by requiring you to explain concepts and provide guidance.

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Identify a junior developer who is interested in learning Akka Streams.
Set up regular mentoring sessions to provide guidance and support.
Review code, answer questions, and suggest resources.
Encourage the mentee to ask questions and actively participate in discussions.

Use the official Akka Streams documentation

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Explore the official Akka Streams documentation to supplement course materials and gain a deeper understanding.

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Read the Akka Streams User Guide.
Follow the Akka Streams tutorial.
Check out the Akka Streams Cookbook for practical examples.

Five other activities

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Write Code in the Akka Streams DSL

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Practice writing code in the Akka Streams DSL to reinforce understanding of stream manipulation techniques.

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Create a stream of random integers.
Apply a filter to the stream to remove even numbers.
Map each integer to its square.
Reduce the stream to calculate the sum of the squares.

Attend a workshop on advanced Akka Streams techniques

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Attending a workshop will provide structured learning and hands-on practice with Akka Streams.

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Identify and register for a workshop aligned with your learning goals.
Attend the workshop and actively participate in discussions and exercises.
Take notes and ask questions for clarification.
Apply what you learn in the workshop to your own projects.

Create a blog post or article on Akka Streams

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Writing about Akka Streams consolidates understanding by requiring clear and concise explanations of concepts.

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Choose a specific aspect of Akka Streams to focus on.
Research and gather information from reliable sources.
Write a draft and organize your ideas logically.
Edit and refine your content for clarity and accuracy.
Publish and promote your blog post or article.

Build a small-scale application using Akka Streams

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Practical application of Akka Streams in a project reinforces understanding and develops problem-solving skills.

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Define the scope and requirements of your project.
Design the architecture and choose appropriate Akka Streams components.
Implement the application, including stream processing and error handling.
Test and debug your application.
Deploy and monitor your application.

Contribute to the Akka Streams open-source project

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Contributing to the Akka Streams open-source project provides hands-on experience and deepens understanding of its implementation.

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Identify an area of the project you're interested in contributing to.
Read the project documentation and familiarize yourself with its codebase.
Create a pull request with your proposed changes or contributions.
Work with the community to refine and merge your contributions.

Career center

Learners who complete Akka Streams with Scala | Rock the JVM will develop knowledge and skills that may be useful to these careers:

Software Engineer

Software Engineers with a solid understanding of Akka and Scala are highly sought after, as these skills are in high demand. This course will help you build a strong foundation in Akka Streams, which is a powerful tool for writing reactive distributed applications. With this knowledge, you'll be able to develop more efficient and scalable software solutions.

See salaries and explore the career path for Software Engineer

Data Engineer

Data Engineers who are proficient in Akka Streams can develop real-time data pipelines that can handle large volumes of data. This course will teach you how to use Akka Streams to build scalable and fault-tolerant data processing systems.

See salaries and explore the career path for Data Engineer

DevOps Engineer

DevOps Engineers who are familiar with Akka Streams can help to automate and streamline the software development process. This course will teach you how to use Akka Streams to build continuous integration and continuous delivery pipelines.

See salaries and explore the career path for DevOps Engineer

Cloud Architect

Cloud Architects who are proficient in Akka Streams can design and deploy scalable and reliable cloud-based applications. This course will teach you how to use Akka Streams to build distributed systems that can handle high volumes of traffic.

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Enterprise Architect

Enterprise Architects who are proficient in Akka Streams can design and implement enterprise-wide software solutions. This course will teach you how to use Akka Streams to build systems that are scalable, reliable, and efficient.

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System Architect

System Architects who are familiar with Akka Streams can design and implement complex software systems. This course will teach you how to use Akka Streams to build systems that are reliable, scalable, and efficient.

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Solutions Architect

Solutions Architects who are proficient in Akka Streams can help clients to design and implement innovative software solutions. This course will teach you how to use Akka Streams to build solutions that meet the specific needs of your clients.

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Technical Architect

Technical Architects who are familiar with Akka Streams can lead teams of engineers in the design and development of complex software systems. This course will teach you how to use Akka Streams to build systems that are scalable, reliable, and efficient.

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Software Developer

Software Developers who are familiar with Akka Streams can develop high-performance applications. This course will teach you how to use Akka Streams to build scalable and efficient applications.

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Software Tester

Software Testers who are familiar with Akka Streams can test the performance and reliability of software systems. This course will teach you how to use Akka Streams to build test cases that can identify and fix bugs.

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Quality Assurance Engineer

Quality Assurance Engineers who are familiar with Akka Streams can help to ensure the quality of software systems. This course will teach you how to use Akka Streams to build test cases that can identify and fix bugs.

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Data Scientist

Data Scientists who are familiar with Akka Streams can develop real-time data processing pipelines. This course will teach you how to use Akka Streams to build scalable and fault-tolerant data processing systems.

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System Administrator

System Administrators who are familiar with Akka Streams can help to manage and maintain software systems. This course will teach you how to use Akka Streams to build tools that can automate system administration tasks.

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Network Engineer

Network Engineers who are familiar with Akka Streams can help to design and implement high-performance networks. This course will teach you how to use Akka Streams to build network protocols that are scalable and efficient.

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Project Manager

Project Managers who are familiar with Akka Streams can help to manage software development projects. This course will teach you how to use Akka Streams to build project plans that are scalable and efficient.

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