Spring Boot allows the creation of Spring Framework based applications in a quick and easy way without any XML configuration. It does not generate code, but provides useful defaults and an opinionated approach to the configuration but it quickly gets out of the way when we want to change and override the configuration. As if this wasn't enough we can also create production-ready applications with features such as metrics, health checks and externalized configuration. If you add Groovy you have the perfect combination to speed up your development and have fun while developing. In this talk you will see introductory examples of Spring Boot, the creation of a small RESTful API, the usage of Websockets, some of the Spring Boot CLI goodness... and many more examples!