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Akka

Synchronous Testing In Akka ToolKit | Testing Classic Akka Actors

Akka, Scala, , ,

Reading Time: 3 minutes Akka, a free open source toolkit simplifying the construction of concurrent and distributed systems/applications. In this blog, we are gonna discuss Testing the Akka Actors Synchronously. Usually, we people say that testing the Akka Actors is a bit confusing and tricky too, but it isn’t. Coming to the types of testing in Akka Toolkit, we have two types of testing i.e. Synchronous Testing and Asynchronous Continue Reading

Understanding Akka Streams and Its Components

Akka, akka-streams, Big Data and Fast Data, Scala, Streaming, Tech Blogs, , , ,

Reading Time: 4 minutes Overview In this blog, we’ll be understand about akka streams and its components. Also, we’ll do a simple exercise that involves each of these components. Introduction Stream A stream is a flow of data that involves moving and transforming data. An element is the processing unit of the stream. Akka Streams In software development, there can be cases where we need to handle the potentially Continue Reading

How to do Unit testing using embedded PostgreSQL in Akka

Akka, Scala, , , ,

Reading Time: 2 minutes Embedded PostgreSQL provides a platform neutral way for running PostgreSQL binary in unit tests. It is an efficient database to write test cases as it supports all data types of PostgreSQL. In this blog I will not dive deep in the features of Embedded PostgreSQL but rather focus on it’s integration with an Akka application. I have added a sample project for the better understanding. Continue Reading

Introduction to Akka Streams

Akka, akka-streams, Reactive Programming, Scala, ,

Reading Time: 4 minutes Hey folks, let us understand the basics of akka streams. I hope you have a basic understanding of Akka Actor. What is Akka Streams Akka Streams is a library to process and transfer a sequence of elements. It is built on top of Akka Actors to make the ingestion and processing of streams easy. As it is build on top of Akka Actors, it provide Continue Reading

Mailboxes in Akka

Akka, Tech Blogs,

Reading Time: 5 minutes Mailboxes are one of the fundamental parts of the actor model. Through the mailbox mechanism, actors can decouple the reception of a message from its elaboration. So, let’s see how Akka Typed, the most famous incarnation of the actor system, implements the concept of mailboxes. Logging Users’ Navigations First, an actor is an object that carries out its actions in response to communications it receives. Hence, in Akka Typed, Continue Reading

Scheduler in Akka

Akka, Scala, Tech Blogs, ,

Reading Time: 2 minutes The Akka Actor System provides Akka Scheduler for managing the periodic execution of tasks. In this blog, we’ll see how we can schedule tasks using Akka Scheduler. Dependency Let’s add the Akka-actor dependency to our project: Single Execution Scheduler A single execution scheduler lets us defer the execution of a task. The task will execute after the configured delay. Let’s see how we can create a single Continue Reading

How to do Configuration in Akka

Scala,

Reading Time: 3 minutes This blog is for the Scala programmer with a little bit of Akka background, but who is utterly baffled by the seemingly magical Akka Essentials. This blog is all about the configuration in Akka like how we can create a configuration in different ways. Configuration Configuration is all about the piece of text which is in the form of key value pair. You can start Continue Reading

Backpressure in Akka Stream

Akka, akka-streams, Reactive Architecture, Scala,

Reading Time: 4 minutes “Reactive Streams” — whenever we come across these words, there are two things that come to our mind. The first is asynchronous stream processing, and the second is non-blocking backpressure. In this blog, we are going to learn about the latter part. Understanding Backpressure Very simply put, the idea behind backpressure is the ability to say “hey slow down!”. Let’s start with an example that Continue Reading

Akka Actors: How do they actually work

Akka, Scala, Tech Blogs,

Reading Time: 2 minutes You might have used akka actors for building concurrent and distributed systems. But do you know how actors actually works under the hood? So let us understand in this blog how akka actors actually work. First of all, let us understand what are akka actors. Introduction Akka is an open-source library that helps to easily develop concurrent and distributed applications using Java or Scala by leveraging the Continue Reading

Build your first API with Scala and Akka HTTP

Akka, akka-http, Scala, ,

Reading Time: 3 minutes Akka is a free and open-source toolkit and runtime simplifying the construction of concurrent and distributed applications on the JVM. It is built by Lightbend. Akka supports multiple programming models for concurrency, but it prefers actor-based concurrency. One can integrate this library into any JVM support language. It implements Actor Based Model. The Actor Model provides a higher level of abstraction for writing concurrent and Continue Reading

Beginners Level: Akka Typed API

Akka, Scala, , , , ,

Reading Time: 3 minutes In this blog, I will be explaining Akka Typed API. This is going to be my first blog on Akka Typed, so let us name it “Beginner Level: Akka Typed API“. Here, I will be telling you the reason for preferring Akka typed over untyped. Along with that, I will also be demonstrating some implementations with Akka Typed. Now before heading towards Akka Typed API, Continue Reading

Akka Fault Tolerance And Supervisor Strategies| “Fault Tolerance Made Easy”

Scala, , , ,

Reading Time: 2 minutes This blog introduces Akka examples and explore the ways in which it facilitates and simplifies the implementation of concurrent, distributed applications. What is the Akka? Akka is a toolkit and runtime for building highly concurrent, distributed, and fault-tolerant applications on the JVM. It is written in Scala, with language bindings provided for both Scala and Java. All the complexity of creating and scheduling threads, receiving and Continue Reading

Rebalancing in Akka Cluster Sharding

Akka, cluster, Lightbend, Reactive Architecture, Scala, , ,

Reading Time: 4 minutes In this blog we will be discussing about one of the important feature of Akka Cluster Sharding which is Rebalancing. Before moving forward make sure you have some basic knowledge on Akka Cluster Sharding, if not then please read Introduction to Akka Cluster Sharding and Implementing Akka Cluster Sharding. Before directly diving into this amazing feature which akka sharding provides, lets first understand the need Continue Reading

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