JavaScript to BigData
A programming blog on Emerging Tech
Jstobigdata is a Community for Programmers
The jstobigdata brings you advanced guided tutorials and articles on emerging technologies. It presentss you great tutorials with code examples. Unlike many other popular blogs, Jstobigdata focuses on practical oriented tutorials with depth knowledge. This blog is for programmers as well as technology enthusiasts. The content on this site can be broadly categoriesed as Tutorials and Blog articles.
Browse the popular Tutorials
Node.js®
Node.js is the most successful open-source, cross-platform JavaScript runtime built on Chrome’s V8 js engine. Mostly used for server-side and desktop application programming.
Vue.js
Progressive js framework for building user interfaces. Vue is also perfectly capable to powering sophisticated Single-page app by combining with right tools and libraries.
Git
The only source code version-control system you need to know. Git is a free and open source distributed version control system, capable enough to handle very large projects with speed and efficiency.
Agile Methodology
Modern ways of developing software, outlined in the Agile Manifesto in 12 important principles. Popular agile methodologies are Scrum, Kanban, XP, Less, Nexus and many more.
CSS
CSS – cascading style sheets are used to control the web browsers ability to manipulate fonts, colors, shapes, and even animations. CSS is a fundamental skill for the modern web developer.
Top Blog Articles
The API Gateway Pattern in Microservices
An API Gateway acts as a proxy between the Client Apps and the microservices endpoints. I have explained in the previous article (Introduction to Microservices Architecture), each microservice exposes a set of fine-grained endpoints. Each of these services can be hosted on a different server, hence exposing different host URL. In this article, we will explore the need for API [Read More]
Add Newly Created Partitions Programmatically into AWS Athena schema
Problem Statement Amazon Athena uses a managed Data Catalog to store information and schemas about the databases and tables that you create for your data stored in Amazon S3. In the case of tables partitioned on one or more columns, when new data is loaded in S3, the metadata store does not get updated with the new partitions. You need [Read More]
Advanced Docker Tutorial
Advanced Docker tutorial is a complete docker tutorial with examples. This is a Zero to Hero series, to make you up and running with docker. I have created this tutorial to give you an in-depth understanding of docker and docker-compose. Docker provides a consistent way to develop, package, ship and run an application on almost any platform. You will learn [Read More]
Introduction to Microservices Architecture
This is a long boring introduction to Microservices Architecture, I will try to make it as relevant and interesting as possible. You will learn the differences between Monolithic and Microservices architecture. The various strategies used to decompose a Monolithic system into Microservices based architecture. It is difficult to give you an overview of this architecture in a single article, but [Read More]
Getting Started with JUnit 5
In this quick tutorial, we are going to see how we can set up a JUnit 5 project. It will cover the download and installation part with a small working example. Prerequisite To set up a JUnit 5 project, you will need the followings: Java 8 (or higher) Maven 3.0 (or higher) Your favorite IDE (I’m using IntelliJ IDEA) I'm [Read More]
Managed beans using @Component, @Repository, @Service
Introduction: In this tutorial, you will learn the different Spring stereotype annotations (@Component, @Repository and @Service) to declare any class as a Spring-managed Bean. Spring MVC also has several other annotations like @Controller and @RestController. The classes that are managed as beans in Spring are known as Managed Components. There are basically few stereotype annotations in spring that declare classes [Read More]
JUnit 5 – Software Testing Framework
Introduction “Nobody likes testing. Neither I". Yes, you heard it right. I said I don’t like testing. Well, that’s not only me, it’s true for MOST of the developers around the world. But actually, testing is an essential phase of any software development life-cycle. And that is what we are going to learn in this tutorial series with JUnit 5 [Read More]
Spring @Import and @ImportResource annotations
In this tutorial, you will learn to use Spring @Import and @ImportResource annotations to import configurations from java-config class and XML configurations respectively. These annotations work well with @Configuration annotations. Make sure you have a clear understanding of the ways to do Dependency Injections in Spring and the other related concepts. Check the related article on Inversion of Control and [Read More]
Handle Resources in Spring
This article touches upon how to Handle Resources in Spring and we will look into the various interfaces like Resource, ResourceLoader, and ResourceLoaderAware. We usually do not have to make any modifications to the way in which Spring works with resources. We will specifically learn how Spring handles resources. Do not be confused with @Resource annotation. This article is about [Read More]
Backpressure in Project reactor
You will learn about Backpressure in the Project reactor. Backpressure is the ability of a Consumer to signal the Producer that the rate of emission is higher than what it can handle. So using this mechanism, the Consumer gets control over the speed at which data is emitted. If you are new to Project Reactor, read about the Flux in [Read More]
Transform and combine Reactive Stream
In this article, you will learn to Transform and Combine Reactive Streams in Project reactive. Make sure you have a basic understanding of the Flux before proceeding with this article. We will use map for transforming a Flux, also merge and concat for combining multiple streams. 1. Transform a Flux using map We can use the map operator on a [Read More]
Flux in Project Reactor
Introduction In this article, you will learn about Flux in Project Reactor which represents 0 to N (Zero to N) items. Flux is a Reactive Streams Publisher with Rx operators that emits 0 to N elements, and then completes (successfully or with an error). If it is known that the underlying Publisher will emit 0 or 1 element, you should [Read More]