Dan Vega Courses

Building a Documentation Auto-Generator with LLMs and Spring Boot

Discover how to automate GitHub documentation creation using a Spring Boot application integrated with LLMs, featuring support for both local and remote repositories and an HTML interface with HTMX.

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

Sending Emails in Java Using SendGrid - A Beginner's Guide

Learn how to integrate SendGrid's API with Java applications to implement reliable email functionality, from account setup and SDK configuration to sending your first email with proper error handling.

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

Implementing DeepSeek R1 Model in Java and Spring - Local and API Integration

Master DeepSeek R1 model integration in Java and Spring applications through REST API and local implementation, covering setup, streaming responses, and Spring AI's unified provider system.

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

How to Run ChatGPT-Level AI Locally - Deepseek R1 Tutorial

Learn how to run Deepseek R1, a powerful open-source AI model comparable to ChatGPT, on your local machine with step-by-step installation guidance and performance comparisons.

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

Run AI Models Locally: Zero API Keys, Zero Fees with Docker Desktop Model Runner

Learn how to run Google's Gemma 3 AI model locally using Docker Desktop's Model Runner and integrate it with Spring Boot applications - no API keys, no data sharing, and zero fees!

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

Virtual Threads in JDK-24: The Synchronized Block Breakthrough Explained

Discover how JDK-24's virtual threads breakthrough with synchronized blocks dramatically improves performance, with real examples showing up to 70x speed improvements in Java applications without code changes.

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

Save Money on AI: How to Track Token Usage with Spring Boot, Prometheus and Grafana

Learn how to build an AI monitoring dashboard with Spring Boot, Spring AI, Prometheus, and Grafana to track token usage, monitor response times, analyze errors, and project costs in real-time.

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

Spring Data JPA Query By Example - Writing Dynamic Searches with Less Code

Master Spring Data JPA's Query By Example to simplify dynamic database searches, reduce boilerplate code, and implement flexible querying capabilities in Spring Boot applications.

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

Building a Flexible GraphQL API with Spring Boot and Query by Example

Master flexible GraphQL API development in Spring Boot using Query by Example (QBE) to create dynamic queries and eliminate boilerplate code while building a book management system.

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

Using Multiple LLMs in Java with Spring AI

Integrate multiple LLMs in Java using Spring AI. Learn to configure and utilize OpenAI's GPT-4 and Anthropic's Claude 3.5 Sonnet in a single Spring Boot project.

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

Creating an AI-Powered Financial Advisor with Spring AI and RAG

Master building an AI-powered financial document analyzer using Spring AI and RAG (Retrieval Augmented Generation). Implement vector databases, document processing, and intelligent data retrieval in Java applications.

• YouTube
• 36 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