Coding Resources

Spring Boot: Handle AWS RDS Password Change or Rotation Without Restarting

This article is about how you can handle AWS RDS secrets rotation without restarting your Spring Boot application.

Updated April 26, 2021

by Amrut Prabhu

· 22,423 Views · 5 Likes

How to Check Text Inputs for SQL Injection Attacks in Java

Learn how to detect SQL injection attacks from text input(s) using an API in Java.

April 25, 2021

by Brian O'Neill

CORE

· 8,131 Views · 3 Likes

An Overview Between Java 8 and Java 11

This tutorial covers the basics of Java 8 and Java 11; it is a start to prepare you for the next LTS: Java 17.

April 25, 2021

by Otavio Santana

CORE

· 19,275 Views · 25 Likes

Why Your Microservices Need GraphQL

See what GraphQL brings to microservices.

April 25, 2021

by Noorain Panjwani

· 11,260 Views · 4 Likes

How to Debug the Spring Boot Application in Eclipse? [Video]

Got bugs in your Spring Boot app? This video shows you how to use Eclipse to debug it. Grab the flyswatter!

April 25, 2021

by Ram N

· 8,391 Views · 2 Likes

The Features of C# 9 That Will Make Your Life Easier [Snippets]

C# is a language that Microsoft created for their own projects. We analyze the additional features in C# 9 and recall the old features that can also be useful.

April 24, 2021

by Dmitriy Bogdan

· 13,195 Views · 3 Likes

Java 8: ConcurrentHashMap Atomic Updates

Here's a great look at what Java 8 brought to ConcurrentHashMaps, including close looks at the methods at your disposal and their performance impacts.

Updated April 23, 2021

by Tony Tapper

· 73,723 Views · 16 Likes

Migrate HDFS Data to Azure

A developer and Hadoop expert runs through the processes he and his team used to transfer their data over network with TLS encryption when switching to Azure.

April 23, 2021

by Radhika Mekala

· 7,912 Views · 3 Likes

Spring Boot Microservices + Apache Camel: A Hello World Example

A tutorial on to use Spring Boot in tandem with Apache Camel to unlock the power of routes in your mircoservice-based applications.

April 23, 2021

by Nazia Shaikh

· 16,602 Views · 4 Likes

Secure Spring Boot Application With Keycloak

Are you an experienced Java developer but new to Keycloak? Read through this tutorial presenting step-by-step examples of how to secure your REST API.

April 23, 2021

by Bartłomiej Żyliński

CORE

· 54,159 Views · 7 Likes

Problems With Angular Migration

AngularJS to Angular migration is a process of transition from the old framework, which is already limping on one leg. Let's discuss options with migration.

April 23, 2021

by Alex Vasylenko

· 11,162 Views · 3 Likes

5 Popular Standalone JavaScript Spreadsheet Libraries

An overview to help you find the right solution for building web apps that can process large amounts of data.

Updated April 23, 2021

by Ivan Petrenko

· 64,129 Views · 5 Likes

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

· 9,816 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

· 5,958 Views · 1 Like

Hybrid Multi-Cloud Event Mesh Architectural Design

Building the event mesh with Camel

April 23, 2021

by Christina Lin

CORE

· 11,714 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

· 55,734 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

· 6,593 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

· 48,664 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

· 7,290 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

· 4,034 Views · 1 Like

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