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Category: Java

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Java Spring Boot

Spring Boot 3 REST API — Barcode and QR Code Generation

March 25, 2025July 29, 2025 Editorial Team

In this post, we’ll learn how to generate barcodes and QR codes and expose them as an endpoint in the Spring Boot API. · Prerequisites· Overview∘ Barcodes∘ QR Codes· Getting

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Java Java Core

Java Stream API: Exploring Collectors.teeing() collector

February 19, 2025July 29, 2025 Editorial Team

The Collector.teeing feature introduced in Java 12 is a powerful addition to the Collector interface in the Java Stream API. The teeing() method teeing() is a static method of the Collectors class

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Docker Java Spring Boot

Minio Object Store with Spring Boot 3

February 17, 2025July 29, 2025 Editorial Team

In this post, we’ll explore how to integrate MinIO with Spring Boot to perform bucket and object operations to any Amazon S3-compatible object storage service.

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Angular Docker Java Kubernetes MongoDB Spring Boot

Lab10 (Spring Boot/K8S): Frontend deployment with Angular 19 on Kubernetes

February 3, 2025July 29, 2025 Editorial Team

Welcome back 👋 to our K8s journey. In this post, we’ll explore how to deploy a front-end application with Angular 19 on a Kubernetes cluster

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Java Spring Boot Spring Security

Spring Security 6 — Multiple SecurityFilterChain instances

January 13, 2025July 29, 2025 Editorial Team

In this post, we’ll learn how to implement multiple security filter chains in a Spring Boot application using Spring Security. · Prerequisites· Overview∘ A Review of Filters∘ Architecture core

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Angular Java MongoDB Spring Security Spring WebFlux

TOTP-based Two-Factor Authentication implementation with Spring Security and Angular

January 6, 2025July 29, 2025 Editorial Team

Hello Devs 👋 ! . We will implement TOTP (Time-based One Time Password) in this post using Spring Security and Angular. We’ll generate QR codes

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Java MongoDB Spring Boot

Spring Boot 3.x Embedded MongoDB for Integration Testing

December 16, 2024July 29, 2025 Editorial Team

In this post, we’ll learn how to implement Embedded MongoDB for Spring Boot Integration testing. · Prerequisites· Overview∘ Key Features of Embedded MongoDB· Usage with Spring Boot∘ Maven Dependencies∘ Application Properties∘ Writing

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Java Spring Boot

Spring Boot 3 — Unit Testing project Architecture with ArchUnit

December 2, 2024July 29, 2025 Editorial Team

In this post, we’ll explore the power of ArchUnit in the Spring Boot application. · Prerequisites· Overview∘ What is ArchUnit?∘ Why use ArchUnit?· Let’s get to the code∘ Project Architecture∘ Add ArchUnit

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Java PostgreSQL Spring Boot

Spring Boot Rest API using JDBC Core

November 25, 2024July 29, 2025 Editorial Team

In this post, we’ll learn how to implement a Spring Boot Rest API using Spring Boot JDBC core classes and PostgreSQL. · Prerequisites· Overview∘ What is JDBC (Java

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Java Spring Boot

Custom Banner in Spring Boot

November 14, 2024July 29, 2025 Editorial Team

In this post, we’ll explore how to create a custom banner in a Spring Boot application. · Overview∘ Why customize the Spring Boot Banner?· Customizing the Banner∘ Using banner.txt∘ Using

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About Me

I have over 10 years of experience in software design, development, and deployment (Software Development life cycle).

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