SOLID Principles in Action: from Slack to Twilio

Rather than just speak about SOLID, this talk takes an existing Slack integration and walks through refactoring it to work with Twilio. Along the way, I touch on why each aspect of SOLID makes refactoring the example easier.

SOLID principles make software more flexible and maintainable.

In this talk, I touch on each of the principles:

1. Single responsibility principle
2. Open/closed principle
3. Liskov substitution principle
4. Interface segregation principle
5. Dependency inversion principle

However, rather than talk about them in the abstract, the talk focuses on a specific code example. The example starts out as a Slack integration that shows a random “Magic the Gathering” card in a channel when a certain command is issued. I refactor the code to integrate with Twilio and demonstrate each principle along the way.

The example is written as a Spring Boot application and all source is available on Github.

This talk requires a display viewable by the attendees as well as an Internet connection.

Last year, I gave a talk at the KCJUG on securing microservices with JWT. I’d love the opportunity to come back and talk again!

Best,

Micah