Reactive Programming

Getting Started With Akka Http Cache

Mahesh Chandakka-http, Scala, , , ,

To build a rest point application, there are many options available like Akka Http, Finagle, Play Framework, Lagom etc. In our project, we are using Akka HTTP for building rest applications. We have lots of requests related to analytics. There are many requests which are very expensive. So, we faced an issue where our application was taking time to respond to some analytics. We have Continue Reading

Monitor a Kafka stream application with Graphite-Grafana using JMX metrics

Rishi KhandelwalApache Kafka, Architecture, Big Data and Fast Data, cluster, DCOS, DevOps, Docker, Java, Messages, Microservices, Non-Blocking, Reactive Programming, Scala, Web

A few days back, we got the requirement that we need to monitor a Kafka stream application using JMX metrics. We looked for the solution and reached to the conclusion which we will discuss in this blog. I will try to explain each and every component of the solution along with the setup and the integration part of the whole system. Proposed solution: Service (application) exposes Continue Reading

Reactivate your streams with Reactive Streams!!

Anmol Sarnaakka-streams, Reactive Application, Scala, Streaming, Streaming Solutions, , , ,

As you all might have known by now that one of the hot topics for quite some time has been streaming of big data. Day after day, we see tons of streaming technologies out there competing with one another. The obvious reason for that, processing big volumes of data is not enough. We need real-time processing of data, especially when we need to handle continuously increasing Continue Reading

Scala Extractors

Futures with Timeout in Scala

Vidisha GuptaFunctional Programming, Future, Reactive Programming, Scala

You all must be wondering timeouts in Futures, how is that possible? Don’t worry this is the right place to explore what do we mean by Futures with a timeout. I had encountered an issue of finding out if we can provide timeouts to futures in Scala without actually blocking them and guess what, this is possible. In this blog, we will be talking about Continue Reading

Let’s Observe ReactiveX Observables

Shubhrank RastogiAngular, Reactive Programming, Tech Blogs,

Hello! there folks. Today I am going to try to make you understand one of the most interesting and important topics inside Angular domain – The Observables. Angular 2 introduced us with observables. It uses Observables to handle async tasks, event handling and to handle multiple values. Observables are not part of angular itself neither of JS but are imported from ReactiveX library which offers Continue Reading

Want to expose an API? Reactive Options

Vikas HazratiAkka, akka-streams, Architecture, Big Data and Fast Data, Business Insights, Reactive Programming, Scala

In the modern digital world, a system which cannot talk to other systems or does not allow other systems to talk to itself is bound to fail. A lot of organizations that we work with be it large banks, healthcare institutions, travel booking and predictions, industrial analysers, would like to expose their ecosystem through an API so that it is available as a platform for other companies and products to consume and innovate on.

Microservices and the Saga Pattern

Prashant SharmaArchitecture, Java, Lagom, Microservices, Reactive Application, Scala, , , , ,

Microservices have become a crucial part of any enterprise these days, no matter if it is a big or a small enterprise. When something this big is present in the market why not see some fundamentals of the same? So here we’ll go through the concepts like what is a microservice and Saga Patterns that an ideal microservice should have.

Use Case for Message-driven Reactive Systems

Charmy GargArchitecture, Lagom, Messages, MessagesAPI, Microservices, Non-Blocking, Reactive Application, Reactive Programming, Scala

The Case for Message-driven Reactive Systems.

CAP Theorem for the distributed systems

Rishi KhandelwalArchitecture, Big Data and Fast Data, Business Insights, cluster, couchbase, Database, Messages, Microservices, ML, AI and Data Engineering, Reactive Programming, Scala

A few days back I completed the certification for the 1st course of the Lightbend Reactive Architecture Advanced i.e. Building Scalable Systems. I found this course very helpful and informative to get the idea of Reactive architecture. So if you have not started yet, please go there and lets become reactive. There are few foundational courses as well to build the foundation of reactive architecture. Continue Reading

A Beginner’s Guide to Deploying a Lagom Microservice on Kubernetes

Himanshu GuptaJava, Lagom, Reactive Programming, Scala,

Both Lagom and Kubernetes are gaining popularity quite fast. Lagom is an open source framework for building reactive microservice systems in Java/Scala. And, Kubernetes (or K8s in short) is an open-source system for automating deployment, scaling, and management of containerized applications. Together they make an excellent stack for developing Reactive microservices of production grade. We have already seen a lot of blogs on Lagom on this Continue Reading

Still with Spring? 9 reasons to Akka

Vikas HazratiBig Data and Fast Data, Functional Programming, Reactive Programming,

As a niche consulting and development organization we end up in a lot of enterprises who would like to modernize, would like to build web-scale products but they are not ready to look beyond Spring. It is a strongly debated topic and there are reasons for still going the Spring way but the reasons are less and less as we go ahead. For starters, this Continue Reading

Trying to use form field and file upload directive together in Akka-Http?

Miral GandhiAkka, akka-http, akka-streams, Scala,

If you are reading this then probably you have encountered the issue that comes while accessing fields with uploading a file, and if not then let me first tell you what’s the situation that I’m talking about here, Let’s see the code where we try to use fileUpload directive and formFields together

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