Spring Archives - Igor Venturelli

Spring Boot Profiles: Managing Multiple Environments Like a Pro

Learn how to manage multiple environments in Spring Boot using profiles, properties, and YAML configurations

When developing enterprise applications with Spring Boot, managing multiple environments is a necessity. You need different configurations for development, testing, staging, and production, but hardcoding settings or maintaining separate codebases is a disaster waiting to happen.

Protecting Your Spring Boot Application with OAuth2 Resource Server and Auth0

Secure your Spring Boot API with OAuth2 Resource Server and Auth0, using JWT authentication for protection

Security is non-negotiable in modern application development. As APIs become the backbone of digital services, protecting them with robust authentication and authorization mechanisms is critical. OAuth2 has become the de facto standard for securing APIs, and when combined with an identity provider like Auth0, it provides a scalable and secure solution for managing access.

Mastering Request Interception in Spring Boot: Filters vs. Interceptors

Learn the key differences between Filters and Interceptors in Spring Boot and when to use each

When building REST APIs and web applications with Spring Boot, request interception is often necessary to handle authentication, logging, security, request transformation, or other cross-cutting concerns. Spring Boot provides two powerful mechanisms for this: Filters and Interceptors.

Handling Exceptions in Spring Boot Applications

Master Spring Boot exception handling: global handlers, custom errors, and best practices for secure, user-friendly apps

Exception handling is a fundamental aspect of building resilient applications, and in Spring Boot, it can be both robust and elegant when done right. Poor exception management not only leads to confusing user experiences but also opens doors to potential vulnerabilities. Let’s explore how to manage exceptions effectively in Spring Boot, emphasizing global exception handling, custom error responses, and some best practices to ensure clarity and security.

Testing Spring Boot Applications: An Introduction to Unit and Integration Testing

Learn unit and integration testing for Spring Boot apps with JUnit, Mockito, and Spring Boot’s testing tools in this beginner-friendly guide

Testing is a critical part of modern software development, ensuring that your application works as expected while minimizing bugs. In Spring Boot, testing is both powerful and straightforward, thanks to robust support for unit and integration testing. Whether you’re verifying business logic with unit tests or ensuring the interplay of components with integration tests, understanding the fundamentals is essential for building reliable applications.

Differences between JpaRepository and CrudRepository and when you need to chose each

CrudRepository or JpaRepository? Learn the key differences and know when to use each in your Spring Boot applications

In Spring Data JPA, choosing the right repository interface is key to optimizing your database interactions and leveraging Spring Boot’s powerful data-handling capabilities. Two of the most commonly used interfaces, CrudRepository and JpaRepository, provide essential methods for handling data persistence. But what are the differences, and when should you choose one over the other? This post explores these two interfaces, compares their features, and offers guidance on when to use each.

Building Microservices with Spring Boot: A Beginner’s Perspective

Discover the essentials of building microservices with Spring Boot: complete with beginner-friendly explanations and practical code examples

In today’s tech landscape, flexibility and scalability are essential, and microservices architecture helps developers meet those demands. By breaking down applications into manageable, independently deployable services, microservices enable rapid development, better fault isolation, and easier scaling. But starting with microservices can seem overwhelming, especially for beginners. This guide will help you understand the basics of microservices, explain how Spring Boot simplifies microservice development, and provide code examples to get you started.

Dependency Injection in Spring: Simplifying Your Code

Learn how DI simplifies code, promotes testability, and enhances flexibility in your applications

In software development, clean, maintainable, and testable code is crucial, especially in complex applications. One of the key principles that helps achieve these qualities is Dependency Injection (DI), a core feature of the Spring Framework. DI promotes loose coupling between components, making it easier to manage dependencies and test individual components in isolation. In this post, we’ll break down what DI is, how Spring leverages it, and why it matters for building scalable applications. We’ll also walk through some practical code examples to solidify your understanding.

Getting Started with Java: A Beginner’s Guide

Get hands-on with Java! Learn to set up, code your first program, and explore the basics of Spring Boot in this beginner-friendly guide

Java has stood the test of time as one of the most versatile, powerful, and widely-used programming languages. Whether you’re just starting your coding journey or looking to add a powerful language to your toolkit, Java is a fantastic choice. It’s not only the backbone of Android development but also plays a crucial role in web, enterprise, and server-side applications. This guide will help you get started with Java, walking you through setting up your environment, writing your first program, and even touching on how Java is used with frameworks like Spring Boot.