Sajal Chakraborty

In this Java tutorial, we will learn about Java Tuple – a generic data structure and how we can use tuples in a Java program. Tuple, by default, are not present in Java programming language as data structure, so we...

In this Spring cloud tutorial, learn to use client side load balancing using Netflix Ribbon in spring boot/cloud projects. Learn to build microservice based applications which use ribbon as client side load balancer and...

In this Spring boot tutorial, learn how we can build applications using spring retry module facility where we have to call some methods where exception is sometimes expected and we have to retry the request.In such...

In this Spring boot tutorial, learn to easily manage application cache from Spring framework caching support. Spring has some nice features around caching and the abstraction on the spring cache API is very much simple...

In This Spring boot tutorial, learn how spring provides different mechanism to invoke remote methods which are hosted in different JVMs and most likely in different server. This is referred as RMI (remote method...

Alexa is Amazon’s cloud-based voice service. You can experience it in new generation voice based devices such as Alexa echo. These devices work on voice commands e.g. Echo connects to the Alexa Voice Service to play...

Learn to consume SOAP web services using spring boot soap client and auto client proxy class generation using JAXB maven plugin. Creating a SOAP web service is out of the scope of this tutorial, but you may learn it...

In this tutorial, learn to create and consume RSS and Atom feed from spring boot application. You must have seen this in form of text or image buttons on various websites (like our RSS feed) inviting you to...

Learn to leverage Spring boot’s simplicity to create SOAP webservice quickly. REST and microservices are gaining popularity everyday but still SOAP has its own place in some situations. In this spring boot soap...

In this spring boot example, learn to configure web application to run on SSL (HTTPS) with self-signed certificate. Also learn to create SSL cert, as well.SSL Configuration for ImpatientsSpring boot HTTPS...

In this Java AIML tutorial, we will learn to create simple chatbot program in Java. A Chatbot is an application designed to simulate the conversation with human users, especially over the Internet. Internally it uses...

Zipkin is very efficient tool for distributed tracing in microservices ecosystem. Distributed tracing, in general, is latency measurement of each component in a distributed transaction where multiple microservices are...

With use of microservices, we have been able to overcome many legacy problems and it allow us to create stable distributed applications with desired control on the code, team size, maintenance, release cycle, cloud...

Docker is a developer tool to package applications along with their runtime environment, so anybody can deploy and run them in any other machine without facing runtime environment conflicts. It is very similar to...

Microservices virtualization is a technique to simulate the behavior of specific components in heterogeneous component-based applications such as API-driven applications, cloud-based applications or service-oriented...

Dozer is a powerful library which can help us in avoiding lots of unnecessary code, while we want to copy data from one bean to another bean. It is mainly bean to bean mapper that recursively copies data from one java...

Lombok is very handy tool for minimizing the boilerplate code as well as providing lot’s of other features such as lazy loading, thread safety or immutability. This is the reason it becoming very popular among the...

Learn to create load balancer using Netflix Zuul and its solid bonding with Spring Cloud. Here we will mainly concentrate on API gateway pattern and it’s usage. We will build a netflix zuul example where we will...

Learn to create Microservices, based on Spring cloud, registering on HashiCorp Consul registry server and how other microservices (discovery clients) use it to register and discover services to call their APIs.We will...

EC2 stands for Elastic Compute Cloud and this is the backbone of AWS Infrastructure as a Service (IaaS) offering. In this tutorial, we will learn to create an EC2 instance from AWS console and also check how to connect...

Learn to leverage the one of the Spring cloud Netflix stack component called Hystrix to implement circuit breaker while invoking underlying microservice. It is generally required to enable fault tolerance in the...