Coding Resources

AWS Security Groups Basics

A Security Group is a virtual firewall for your EC2 instance to control Inbound/Outbound traffic to/from your instance.

April 23, 2021

by Jawad Hasan Shani

CORE

· 10,667 Views · 6 Likes

Anatomy of a PostgreSQL Query Plan

The first thing to look at to start optimizing a query is the Query Planner. In this post, we explain how a query gets executed and how to understand the EXPLAIN command.

April 23, 2021

by Everett Berry

· 6,994 Views · 1 Like

Hybrid Multi-Cloud Event Mesh Architectural Design

Building the event mesh with Camel

April 23, 2021

by Christina Lin

CORE

· 12,346 Views · 7 Likes

Top 5 Gantt Chart Libraries for Vue.js

Here is an overview of top 5 Gantt chart libraries for Vue.js web apps: DHTMLX, Bryntum, Syncfusion, Hyper Library, and GSTC. Learn about their features.

Updated April 22, 2021

by Ivan Petrenko

· 58,401 Views · 5 Likes

Utilize OpenShift to Manage External Services Metrics

Openshift 4 has great metrics monitor suites used to monitor and create dashboards for infra and application layer services; we can leverage that to manage external services and infra as well.

April 22, 2021

by Ryan ZhangCheng

· 7,155 Views · 2 Likes

How to Create a Java Library: From Scratch to Maven Central

If you usually need to rewrite or copy similar code between different projects, it may be time to stop replicating it and create a library.

April 22, 2021

by Helber Belmiro

CORE

· 51,932 Views · 5 Likes

Resolving Permission Issue in Multi-node Hadoop Cluster

It has been observed when we configure and deploy a multi-node Hadoop cluster or add new DataNodes, there is an SSH permission issue in communication with Hadoop daemons.

April 22, 2021

by Gautam Goswami

CORE

· 7,880 Views · 2 Likes

How to Validate a VAT Number in Java

Determine if a VAT Identification Number is valid by using an API in Java. If valid, business contact information will be retrieved as well.

April 21, 2021

by Brian O'Neill

CORE

· 4,612 Views · 1 Like

Beginner's Guide to Compilation in Java

Java applications are complied to bytecode then JIT and JVM takes care of code execution. Here you will find some insights about how JIT compiler works.

April 21, 2021

by Bartłomiej Żyliński

CORE

· 8,948 Views · 12 Likes

Building an Angular Bot With AWS Lex

Here's an in-depth guide to building your own Angular chatbot.

Updated April 21, 2021

by Amar Deep Singh

· 20,224 Views · 6 Likes

Server-Side Rendering Explained

In this article, we discuss what it means to use SSR. Server-side rendering (SSR) is a method of loading your website’s JavaScript on your own server.

April 20, 2021

by Zsolt Varga

· 13,892 Views · 6 Likes

Managing Secrets Deployment in GitOps Workflow

The importance of keeping your secrets safe.

Updated April 19, 2021

by Jaswinder Kumar

· 14,419 Views · 9 Likes

Spring Boot File Upload Example With MultipartFile [Video]

How can you get your file into Spring Boot if it has multiple parts? This helpful video tutorial will walk you through the simple process.

April 18, 2021

by Ram N

· 10,252 Views · 3 Likes

Using Git Submodules With Gitlab CI/CD

We use Git submodules to keep a Git repository as a subdirectory of another Git repo. This is usually done for a set of common files you want to refer to in multiple repos.

April 18, 2021

by Rishab Aggarwal

· 30,115 Views · 5 Likes

Spring Data JPA + QueryDSL: Taking the Best From Both Worlds

An example of combining the two most powerful frameworks for building a maintainable and type-safe persistence layer; from Spring Data JPA we will take only CRUD operations and for all complex queries we will use QueryDSL.

Updated April 18, 2021

by Dmytro Stepanyshchenko

· 30,013 Views · 5 Likes

Data Ingestion From RDBMS: Leveraging Confluent's JDBC Kafka Connector

Kafka Connect assumes a significant part for streaming data between Apache Kafka and other data systems. Importing data from the Database set to Kafka topic.

April 17, 2021

by Gautam Goswami

CORE

· 7,633 Views · 3 Likes

Running Selenium Tests in Jenkins

Wondering how to integrate Jenkins with Selenium WebDriver? This guide will help you run Selenium tests in Jenkins. Learn more.

April 16, 2021

by Shalini Baskaran

· 26,426 Views · 4 Likes

Five Handy JavaScript Uploaders to Keep in Mind

Make your development life just a little bit easier with these five uploaders.

Updated April 16, 2021

by Ivan Petrenko

· 17,677 Views · 5 Likes

How to Import the Gradle Spring Boot Application in Eclipse? | Spring Boot Tutorial [Video]

Missing the Gradle Spring Boot Application in Eclipse? This quick video will show you how to pop that right into place like you had it the whole time.

April 16, 2021

by Ram N

· 7,029 Views · 2 Likes

How to Call SOAP Services Using REST

SOAP, being a mature technology, has an extensive and often differently interpreted standard set. This article discusses how to call SOAP services using REST.

April 16, 2021

by Anthony Morris

· 25,206 Views · 5 Likes

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