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Kotlin Extensions for LangChain4j

Programming Ai Kotlin Coroutines Langchain4j
Discover Kotlin extensions for LangChain4j designed to transform the synchronous LangChain4j API into a modern, non-blocking experience with Kotlin Coroutines. Learn about key features including coroutine support for ChatLanguageModels, Kotlin Flow for streaming responses, external customizable prompt templates, and non-blocking document processing. Enhance your Kotlin programming skills and improve application efficiency by leveraging these powerful new tools.

Keeping Your Software Healthy: The Critical Role of Dependency Updates

Programming Software-Development Project Management Sdlc Security Devops Best-Practices
Discover best practices for effective dependency management in software development and learn strategies to keep your projects secure, efficient, and free of technical debt. This comprehensive guide covers the critical importance of regularly updating dependencies, utilizing automated tools and processes to streamline dependency management, fostering a culture of proactive updates through incentives and education, and implementing organization-wide dependency management strategies at scale. Whether you’re an application developer, software architect, or engineering manager, this article provides actionable insights to help you master dependency updates and ensure your software stays healthy and high-performing.

Spring Boot Starters

Programming Spring
This post discusses Spring Boot Starters and their importance to developers, who want to make the setup and configuration of Spring Boot applications a whole lot easier. It keeps dependencies organized, increases development speed, and grants you numerous options for customization and extension. This basically makes them indispensable in building all manner of applications with Spring Boot - from simple web applications to data access and security services. I showcase, with a practical example, how to create a custom Spring Boot Starter that consolidates logging configurations and standard dependencies across microservices. This guide provides step-by-step instructions on how to create and use a custom starter.

Code-Review Best Practices

Programming Best-Practices

Code review is a crucial practice in software development. One can design and write great software, but we are humans after all. And all humans make mistakes, so another pair of eyes is always helpful.

The review process might seem straightforward, but there are useful tips to make it less painful is some cases.

Running Testcontainers On Dynamic Ports

Programming Kotlin Docker Testing

Running integration tests locally with Docker can be challenging when fixed ports are unavailable due to conflicts. This issue is compounded in shared CI environments where multiple workers are in use. However, using testcontainers can help overcome these obstacles by enabling the startup of Docker containers that listen on random ports.

Spring Boot Configuration Best Practices

Programming Spring
Spring Boot comes with very neat configuration mechanism. Default application configuration is defined in one configuration file and environment specific setting in separate files. But still, this mechanism is often not used properly resulting in verbose and unmaintainable configurations.

Building Data Pipeline with Kotlin Coroutines Actors

Programming Kotlin Coroutines
This blog post demonstrates how to build a data processing pipeline using Kotlin coroutines and actors, showing both single-threaded and parallel implementations. It walks through creating a simple data pipeline using Kotlin’s channel and actor abstractions for clean concurrent programming. The post includes practical code examples of handling message passing between actors, managing thread pools, implementing back-pressure, and scaling from a basic sequential pipeline to a parallel version that processes data more efficiently. The explanation is backed by detailed logging output that illustrates how messages flow through the system and how parallel processing improves overall performance.

Common Java Application Anti-patterns and Their Solutions

Programming Project Management Software Architecture Web Services Sdlc
Software projects often run into trouble when developers mix different code layers together. The article explains how this leads to rigid, brittle code that’s hard to update and reuse. Software architecture problems are examined through biological cell analogies. A practical guide follows for improving existing systems without full rewrites, focusing on testing, API design, and gradual changes.

Customizing REST API Error Response in Spring Boot / Spring-Security-OAuth2

Programming Java Spring Swagger Web Services Rest-Api Kotlin

Defining error format is important part of REST API design.

Spring-Boot and Spring Security provide pretty nice error handling for RESTful APIs out of the box. Although it has to be documented, especially when contract-first approach to API design is used.

It is good idea to follow some common format for error responses. But OAuth2 specification and Spring Boot format may not satisfy those requirements.