Hydrate your brain with GR8 content

A conference dedicated to the technologies in the Groovy ecosystem

Stats & Facts

• @Copenhagen
• 1 university day
• 2 conference days
• 2 tracks
• 36 sessions
• 23 speakers
• 150 attendees
• Lots of goodies
• BBQ & Beers

Things we saw

Monday

• [KO,FP] Getting groovy
• [KO] Creating RESTful API's with Grails and Spring Security
• [KO] Unleashing the power of AST transformations
• [FP] Getting Groovy With Lego Mindstorms EV3

Tuesday

• [KO,FP] Groovy in 2014 and beyond
• [KO,FP] Application architectures with Grails
• [KO,FP] Integration using Apache Camel and Groovy
• [KO] Hybrid client/server view rendering with Grails
• [FP] Metaprogramming With The Groovy Runtime
• [KO] Vert.x using Groovy - How you can simplify non-blocking code
• [FP] Metaprogramminmg With The Groovy Compiler
• [KO] Grails & DevOps: continuous integration and delivery in the cloud
• [FP] BDD using Cucumber JVM and Groovy
• [FP] Bootstrapping your projects with Lazybones
• [KO] Polyglot Web Development With Grails 2
• [FP] Griffon: what's new and what's comming
• [KO,FP] Groovy puzzlers

Wednesday

• [KO,FP] Grails 3.0 and Beyond
• [KO] Ratpack and Grails 3
• [FP] Gradle Goodness
• [KO,FP] Cut your Grails application to pieces - build feature plugins
• [FP] Building Micro Services using Groovy, Spring Boot and friends
• [KO] Developing Android applications with Groovy?
• [KO,FP] The new Groovy Meta Object Protocol in examples
• [KO] Functional testing your Grails app with GEB
• [FP] Getting Groovy and Grails into the Enterprise
• [KO,FP] Idiomatic Spock

Buzzwords

• microservices
• lightweight
• restful
• BDD/TDD

Microservices

Single concern, deployable in isolation

SOA

Microservices

using Groovy/Grails

Restful annotations in Grails

GORM

Grails 3.0

                
@Grab("com.h2database:h2:1.3.173")
import grails.persistence.*
 
@Entity
@Resource(uri='/books')
class Book {
    String title
}
                    

Restful API using Grails

Custom AST transformations

AST transformation == annotations that alter the generated java bytecode

                    
@ToString
class Book {
    String title
}
                    

Grails feauture plugins

See: gr8crm

Idiomatic spock

On the tech radar

• Lazybones: project generation
• Ratpack: lightweight netty event-driven toolkit for web applications
• Apache camel
• Spring boot (ideal for microservices)
• Functional testing with GEB
• Cucumber

General thoughts

• There's one build system to rule them all
• Groovy ecosystem is evolving with the new technologies
• Existing technologies are embracing groovy

Thank you