Category Archives: Microservices

A Java Lagom service which only consumes from Kafka topic (Subscriber only service)


Subscriber only service means an application which only consumes, does not produce. We have generally seen the applications which both produces and consumes data from a Kafka topic but sometimes we need to write an application which only consumes data … Continue reading

Posted in Akka, Apache Kafka, Architecture, Best Practices, big data, Functional Programming, github, Java, MessagesAPI, Microservices, Scala | Leave a comment

Lagom and Immutability


What is Lagom? Lagom is not in disguise anymore. Everyone who’s following on micro-service architecture knows about Lagom framework. Lagom is an open source framework built with the shifting from monoliths to micro-services-driven application architecture in mind. It abstracts the … Continue reading

Posted in Architecture, Java, knoldus, Microservices, Scala | Tagged , , , | Leave a comment

Play around with Microservices


What is microservice architecture Microservice architecture is a method of developing software applications as a suite of independently deployable, modular services in which each service runs a unique process and communicates through a well-defined, lightweight mechanism to serve a business … Continue reading

Posted in Microservices, Play Framework, Scala | Leave a comment

Let’s Consume a Micro-service


Micro-services architecture is being widely adopted and guess what, Lagom is the most efficient way to achieve it.  While creating micro-services, we usually need to interact with other micro-services and consume their data. So the idea behind this blog is … Continue reading

Posted in Java, Microservices | Tagged , , , , , | 1 Comment

Wait! Don’t write your microservice … yet


Day one, we were super excited to start a new project for a huge financial institution. They seemed to know the domain and as Knoldus we understood the technology. The stakeholders were excited about the Reactive Paradigm and the client … Continue reading

Posted in Microservices, Scala | Tagged , | 3 Comments

Serverless Architecture-Blog-2 (AWS Lambda)


In our last blog, we have seen the serverless introduction, Continuing that in this blog we will implement serverless using AWS lambda. AWS Lambda is a compute service that lets you run code without provisioning or managing servers. AWS Lambda … Continue reading

Posted in Amazon, AWS, AWS Services, Microservices, S3, Scala | Tagged , , | 4 Comments

Serverless Architecture – Blog-1


What is Serverless computing? The “serverless” bit doesn’t actually mean that there are no servers required to run the new feature. It just means that we don’t have to deal with the infrastructure.That means we don’t have to worry about … Continue reading

Posted in Amazon, AWS, AWS Services, Microservices, Scala | 1 Comment

Lightbend Monitoring: Lagom


Lightbend Monitoring provides insight into applications built with Lightbend technologies. It does so by instrumentation of frameworks like Akka and Lagom. The instrumentation is done by a Java agent (called Cinnamon) that runs when your application is starting up. It … Continue reading

Posted in Microservices, Scala | Tagged , , , , | 1 Comment

Lagom Framework: The Legacy WordCount Example


What is Lagom? Lagom is an open source micro-service framework, built with Akka message-driven runtime and Play web framework and finally light bend service orchestration. Mixing all these technologies abstracts away the complexities of building, running, and managing microservice architectures. … Continue reading

Posted in big data, Microservices, Scala | Tagged , , , , | 2 Comments

Building Microservices Based Enterprise Applications in Java Using Lagom – Part I


As we know, now days, most of the enterprise applications design as a “Microservices Architecture” because of scalability, sharding, loosely-coupling and many others reasons are there. On the other hand  JavaEE help us for building an Enterprise Applications. As we … Continue reading

Posted in Akka, Java, Microservices, Scala | Tagged , , , , , , , , , , | 2 Comments