Category Archives: knoldus

Exploring JEST: Java HTTP REST Client


Elasticsearch is a real-time distributed and open source full-text search and analytics engine. To integrate Elasticsearch to our application, we need to use an API. Elasticsearch gives us two ways, REST APIs, and Native clients. It’s easy to get confused … Continue reading

Posted in Elasticsearch, knoldus, NoSql, sbt, Scala | Tagged , , , , , | Leave a comment

Java High-Level REST Client – Elasticsearch


Elasticsearch is an open-source, highly scalable full-text search and analytics engine. Using this, you can easily store, search, and analyze a large amount of data in real time. Java REST client is the official client for Elasticsearch which comes in … Continue reading

Posted in database, Elasticsearch, fulltextsearch, knoldus, NoSql, sbt, Scala | Tagged , , , | Leave a comment

DC/OS Installation experience on Local Cluster


Recently got the task to install DC/OS on our local cluster. Previously I used AWS to install DC/OS, but this time I had to do everything on our own, from installing CentOS to creating the DC/OS cluster. With this blog, … Continue reading

Posted in cluster, Devops, knoldus | Tagged , , , , , | 1 Comment

Persistent Read Side in Lagom


Here in this blog, we will be discussing how we can query the lagom’s microservices for retrieving data. I hope you are clear with persistent entity concepts in lagom, if not, you can take a quick overview by going through … Continue reading

Posted in Cassandra, database, knoldus, Microservices, Scala | Tagged | 3 Comments

Knolx: Introduction to Algebird: Abstract Algebra for Analytics


Hello everyone, Knoldus organized a session on 6th October 2017. The topic was “Introduction To Algebird”. Many people attended and enjoyed the session. In this blog post, I am going to share the slides & video of the session.

Posted in Best Practices, big data, Functional Programming, knoldus, Scala | 1 Comment

One-way & two-way streaming in a Lagom application


Now a days streaming word is a buzz word and you should have heard many types of streaming till now i.e. kafka streaming, spark streaming etc etc. But in this blog we will see a new type of streaming i.e … Continue reading

Posted in Akka, Best Practices, big data, Functional Programming, github, Java, knoldus, Messages, Reactive, Scala, Streaming, Web Services | 1 Comment

Case Study to understand Kafka Consumer and its offsets


In this blog post, we will discuss mainly Kafka Consumer and its Offsets. We will understand this using a case study implemented in Scala. This blog post assumes that you are aware of basic Kafka terminology. CASE STUDY: The Producer … Continue reading

Posted in Apache Kafka, big data, Functional Programming, knoldus, Scala, Streaming | 4 Comments

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 , , , | 1 Comment

Learning the maths for Feed Forward Network


In my last blog we were discussing about the biological motivation on the artificial neural network. This time we will discuss more about the artificial neural network in practice. In ANN we have different layers of networks to solve a … Continue reading

Posted in artificial neural network, knoldus, machine learning, Scala | 1 Comment

Authentication using Actions in Play Framework


Actions plays an important role in Play Framework, the requests received by a Play application are handled by an Action. Action composition is an incredibly powerful way to enhance or restrict controller behaviour. In Play Framework controllers consist of methods that create Action objects … Continue reading

Posted in knoldus, Play Framework, sbt, Scala, Security, Web, web application | Leave a comment