Greach 2016

Operating Microservices with Groovy

When you are developing a microservices arquitecture, you often have to call some of them, for manual testing, scripting and/or operations. Given the dynamic nature of Groovy, could it be used to make easier these calls?

* Could we call our services with a syntax shorter and more natural, instead of using long curls, but not losing the history capability of a shell?
* Could we query the documentation of the operations in the same way?
* Could we even have autocomplete features of our service operations, so that we don’t have to remember their names?
* Could we do all this dynamically, without having to create a specific client for each service, but calling it as if it were?
* Could we have a directory of available services, so that we don’t have to remember them?
* Could this directory and the utility classes be updated automatically for all the team when someone makes a change, using a Git repository?

You are invited to a journey through the mud, exploring features such as Groovy metaclasses, class loading, REST services, shell capabilities and AST transformations, and making some dark tricks to achieve what we want.

Senior software engineer

Andrés Viedma

Andrés Viedma

Java dinosaur with more than 20 years of experience, working for companies in different industries (aerospace, libraries, advertising, bank/insurance…). Now working as senior software engineer at Tuenti.

He uses Groovy mainly for testing and scripting, and for that he enjoys finding creative solutions and playing in the mud. Dynamic mud.