Dan Vega Courses

The Complete Apache Groovy Developer Course

Master Apache Groovy development from basics to advanced concepts, including IDE setup, compiler usage, classes, control structures, and transitioning from Java programming.

• YouTube
• 1 hour 22 minutes
• Self-Paced
• Free Video

Spring Boot 4 OpenTelemetry - From Zero to Full Observability in Minutes

Discover Spring Boot 4's new OpenTelemetry starter for complete observability without Actuator. Set up LGTM stack, view traces/metrics in Grafana, add custom metrics, and connect logs to traces.

• YouTube
• 23 minutes
• Self-Paced
• Free Video

Build a Spring Boot 4 REST API in Minutes

Discover how to rapidly build a Spring Boot 4 REST API from scratch using Spring Initializr, controllers, and Java records to create a working CRUD API in just minutes.

• YouTube
• 26 minutes
• Self-Paced
• Free Video

Loading Resources in Spring - 3 Methods Every Developer Should Know

Master three essential Spring resource loading methods: @Value with Resource, ResourceLoader, and ResourcePatternResolver for files, JSON, images, and SQL scripts.

• YouTube
• 22 minutes
• Self-Paced
• Free Video

Spring Security 7 Adds Multi-Factor Authentication (MFA)

Master Spring Security 7's new native Multi-Factor Authentication by building a complete MFA implementation with password and one-time token verification from scratch.

• YouTube
• 21 minutes
• Self-Paced
• Free Video

Spring Boot 4 Modularization Explained - What You Need to Know

Understand Spring Boot 4's modularization changes and fix common H2 Console issues when upgrading from version 3.x with new starter dependencies.

• YouTube
• 11 minutes
• Self-Paced
• Free Video

Claude Code on the Go - 2 Ways to Fix Issues Without Your Laptop

Discover two mobile-friendly methods to fix code bugs using Claude AI: web-based Claude Code for direct GitHub repo access and automated GitHub workflows triggered by issue tags.

• YouTube
• 12 minutes
• Self-Paced
• Free Video

Getting Started with the Web Client in Spring Boot and Writing Tests

Learn to use Spring Boot's Web Client for asynchronous requests and write effective tests. Covers client setup, request handling, and various testing approaches for robust API interactions.

• YouTube
• 32 minutes
• Self-Paced
• Free Video

Spring Framework 6.2 - Rendering Multiple Fragments

Explore Spring Framework 6.2's new feature for rendering multiple fragments, enhancing HTMX integration and simplifying fragment returns in Spring MVC and WebFlux applications.

• YouTube
• 27 minutes
• Self-Paced
• Free Video

Overview of Spring Boot Clients - Rest Template, Web Client, Rest Client and Http Interfaces

Explore Spring Boot's client options: RestTemplate, WebClient, RestClient, and HttpInterfaces. Learn their history, use cases, and when to choose each for your projects.

• YouTube
• 27 minutes
• Self-Paced
• Free Video

Building a ChatGPT Clone with HTMX, Spring Boot, and Spring AI

Learn to create a ChatGPT-like app using HTMX, Spring Boot, and Spring AI. Develop dynamic frontends without JavaScript and integrate AI capabilities easily with OpenAI's GPT-4 or other LLMs.

• YouTube
• 22 minutes
• Self-Paced
• Free Video

What's New in Spring AI 1.0.0 M1 - Features and Improvements

Explore Spring AI 1.0.0 M1's latest features, including the Chat Client's new fluent API for more concise and readable code. Learn about key updates and improvements in this release.

• YouTube
• 24 minutes
• Self-Paced
• Free Video

Getting Started with HTMX in Spring Boot with Thymeleaf

Learn to build dynamic web apps using HTMX with Spring Boot and Thymeleaf. Explore four practical examples to create interactive interfaces without JavaScript, enhancing your web development skills.

• YouTube
• 26 minutes
• Self-Paced
• Free Video

Spring AI Functions - Registering Custom Java Functions with Chat Client

Learn to integrate custom Java functions with Spring AI's Chat Client for real-time data access in LLMs. Explore function calling and implementation for enhanced AI capabilities.

• YouTube
• 21 minutes
• Self-Paced
• Free Video

Building a Spring Boot Reference Documentation Assistant with Spring AI and GPT-4

Learn to create a command-line tool using Spring AI and GPT-4 for accessing Spring Boot documentation, implementing Retrieval Augmented Generation with a vector database for up-to-date information retrieval.

• YouTube
• 32 minutes
• Self-Paced
• Free Video