Knoldus Blogs

Reactive Programming in Java

March 22, 2023April 3, 2023Java, java11, Tech Blogsjava, Reactive Programming, technology

Reading Time: 4 minutes Reactive programming is a programming paradigm that focuses on asynchronous and event-driven programming. Reactive programming is designed to handle streams of data and events, and it has become popular in recent years due to the rise of modern web applications and the need for real-time data processing. Java, being a popular language for enterprise applications, has several libraries and frameworks that support reactive programming. In Continue Reading

Resilience4J: Introduction to Bulkhead

March 22, 2023April 3, 2023Java, java11java, resilience4j

Reading Time: 4 minutes Resilience4J is an open-source library that provides different resilience patterns for building resilient applications. Bulkhead is one of the patterns provided by Resilience4J to prevent the cascading failure of an application by limiting the resources used by a failed component. In this blog, we will discuss in detail what it is and how Resilience4J implements it. What is a Bulkhead? It is a physical barrier Continue Reading

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Finagle: Server and Client

March 22, 2023April 3, 2023Javajava

Reading Time: 2 minutes Finagle is a powerful network framework that provides developers with the tools they need to build highly scalable and fault-tolerant distributed systems. At the core of Finagle’s architecture are the server and client components, which work together to enable reliable communication between different services. Finagle Server The Finagle server component provides the infrastructure for building scalable, fault-tolerant network services. A Finagle server is built using Continue Reading

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Deep dive into Spring Reactive WebClient

March 22, 2023April 3, 2023Javajava, Reactive Programming, WebClient

Reading Time: 3 minutes Introduction Spring Reactive WebClient is a non-blocking, reactive HTTP client that can be used to consume RESTful web services. It provides an easy-to-use and efficient way to communicate with remote APIs, allowing you to perform asynchronous and reactive programming. In this blog, we will discuss how Spring Reactive WebClient works and how you can use it to consume RESTful web services. If we talk about Continue Reading

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How WebClient is different from RestTemplate?

March 19, 2023April 2, 2023Javajava, Reactive, Reactive Programming, RestTemplate, WebClient

Reading Time: 3 minutes Overview WebClient and RestTemplate are two popular ways to make HTTP requests in a Java application. While WebClient and RestTemplate both allow you to interact with RESTful web services, there are some key differences between the two. What is WebClient? WebClient is a newer HTTP client introduced in Spring 5. It’s a non-blocking, reactive HTTP client designed for use with Spring WebFlux. WebClient is built Continue Reading

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Introduction to Reactive Programming

March 10, 2023April 2, 2023Javajava, Reactive Programming, Tech blogs

Reading Time: 4 minutes Overview In recent years, Reactive programming has gained popularity. Now it is frequently utilized programming paradigm in the creation of cutting-edge, responsive, and scalable systems. Based on the concepts of asynchronous data streams, reactive programming offers a method for handling events and data flows non-blocking and responsively. In this blog post, we will provide an introduction to Reactive Programming and explore its key concepts and Continue Reading

Reactive vs Imperative Programming

March 1, 2023April 2, 2023Java, Reactive Application, Reactive Architecture, Reactive Programming, Tech Blogsjava, Reactive Programming

Reading Time: 4 minutes Introduction A few years ago Reactive Programming was introduced as an improvement upon the imperative programming paradigm. It provides some important advantages over the imperative way by relying on asynchronous programming. These days we see a lot of enterprise applications use the reactive way but still, there are ones using the imperative approach. In this blog, we will try to explore what are the differences Continue Reading

Reactive Programming 101: Understanding The Basics With An Example

February 27, 2023February 28, 2023Studio-Scalajava, Reactive Programming

Reading Time: 4 minutes Reactive programming is a programming paradigm that focuses on events and dataflows in order to create applications that are responsive, resilient, and scalable. In this article, we’ll explore the basics of reactive programming with an example so you can get a better understanding of how it works. Introduction to Reactive Programming it’s a declarative programming paradigm concerned with data streams and the propagation of change. Continue Reading

Introduction to HTTP Client in Java 11

January 12, 2023January 13, 2023java11http client, java, java11

Reading Time: 3 minutes If you want to send a HTTP request and process the response from a java program you may need an API called HttpClient. What is HTTP? The Hypertext Transfer Protocol (HTTP) is used to transmit data on the World Wide Web. It allows the client to send a request to a server and get the response back from the server. HTTP is used to request Continue Reading

Loading and Indexing Data in MarkLogic

January 9, 2023January 11, 2023Javajava

Reading Time: 3 minutes With MarkLogic being a document-oriented database, data is commonly stored in a JSON or XML document format. If the data to bring into the MarkLogic is not already structured in JSON or XML means if it is currently in a relational database, there are various ways to export or transform it from the source. For example, many relational databases provide an option to export relational Continue Reading

CRUD operation with Hibernate and Micronaut

December 27, 2022January 4, 2023Java, Micronaut, Tech Blogsjava, Micronaut

Reading Time: 4 minutes In this blog, we will delve further into Micronaut Framework by using it to create an app using Hibernate and H2 Database. This blog requires prior knowledge of Micronaut Framework and Hibernate. If you’re completely new to Micronaut and would like to learn more about it please go through the Fundamentals of Micronaut. Introduction Let’s first briefly know about the technologies that we will be Continue Reading

Liquibase with Maven and PostgreSQL

December 26, 2022December 29, 2022Java, Liquibase, Tech BlogsDatabase, java, liquibase, maven

Reading Time: 3 minutes Overview Firstly the goal of this blog is to walk you through setting up a new Maven project on a Linux, Unix, or Mac computer with PostgreSQL. You will generate an example project in this tutorial. Then follow the instructions to put the concepts you learn about building new Liquibase projects in Maven into practice. We will start this blog by installing and configuring Liquibase. Continue Reading

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Schema migration with Liquibase and Micronaut

December 25, 2022December 29, 2022Database, Java, Micronaut, MicroservicesData Migration, Database, java, Micronaut, postgreSQL, schema

Reading Time: 3 minutes In today’s world of microservices, each microservice has its own set of information stored in some kind of data store. This data store can be either a database or some other system that can retain the data for a period of time. We moved to microservices because we didn’t want one set of functionality not to be impacted by the changes in other functionality. After Continue Reading