Sydney Java Meet-Up #15

Kotlin!

Program

6pm - Networking/Drinks/Food

6:30pm - Event Intro and Job Shouts

6:35pm - Hands off deployments in Kotlin With Acceptance Tests (Mat Johnson)

Do you feel nervous when your code is ready to be deployed to production? Do you feel you need to manually test each deployment to ensure no regressions? This talk will share a technique to take acceptance criteria and turn it into a set of automated tests. The acceptance tests will be written using Kotlin to test a Kotlin based micro-service.
- Matt is a Software Artist that loves building new capabilities using Test Driven Development and automation as much as possible. Matt enjoys working with Kotlin, Java, Python, MacOS, Ubuntu, Ansible and Kubernetes.

7.10pm - 15 minute break

7:25pm - Streaming REST Responses with Kotlin and Ktor (Peter Wall)

An introduction to the coroutine capabilities of Kotlin, and a demonstration of how they can be utilised to receive JSON data, process it and output response objects on the fly. The first object in a list can be deserialised and processed fully while the second and subsequent objects are still in transit.
- Peter is a Software Engineer; 4 years with Tyro. He's had had a long and varied career, including 6 years as a Senior Java Architect with Sun Microsystems in Australia and the US. He also has a large portfolio of Open Source Software at https://github.com/pwall567.

8pm Event Finish

Intro

Program

Quick acknowledgement of Tyro: Thanks to Tyro for hosting us at their office!

Ethos, vibe

• openness
• inclusiveness
• learning through code, the meetup is organised by coders for coders, with a focus on practical skills and real experiences
• no experts, we're a community of peers all learning together
• supportiveness, we're here for each other

Job Shouts

“Before we get into the tech talks, are there any job shoutouts?”

Links

Hands off deployments in Kotlin With Acceptance Tests

Code: https://github.com/mathewdj/paper-scissors-ROCK-acceptance-tests
Slides: Hands off deployments in Kotlin

Streaming REST Responses with Kotlin and Ktor

Code: https://github.com/pwall567/ktor-demo-1
https://github.com/pwall567/ktor-demo-2
https://github.com/pwall567/kjson-ktor
Slides: StreamingRESTResponses.pdf