Explore the creation of events and event subscribers for data transfer object (DTO) validation in a Symfony 6 microservice. Learn how to fire an event when a DTO is created and implement an event subscriber to listen for this event, enabling automatic validation. Gain hands-on experience with Symfony's event system while building a robust microservice architecture. Access the source code for both the microservice and the integrating application on GitHub to follow along and enhance your understanding of advanced Symfony concepts.