I am a big fan of using Arrow in my Kotlin apps. Over the past week I have been looking at how I can steer agents towards writing more idiomatic arrow code and to give them this feedback early on.
Along with a few additions to my agents.md file, this all ended up as a new collection of Detekt rules - https://leeturner.me/projects/arrow-detekt-rules/
If you use arrow and detekt, feel free to take a look and let me know what you think.
Great to see Jetbrains IDEs using libghostty as the backend for their terminals
https://blog.jetbrains.com/platform/2026/10/jetbrains-terminal-now-uses-ghostty/
All @micronaut projects on https://github.com/leeturner have been updated to the latest security release 5.2.3
Really enjoyed the social at the @tessl_io office tonight. Simon’s talk on the Tessl software factory was really interesting. Definitely interested in giving a try
RE: https://mas.to/@tastapod/117485600577537491
Static sites FTW
@wiremock WireMock OSS 4.0-beta.41 has been released. This is largely just a dependency and bug fix release but worth updating all the same if you are running the beta releases.
https://github.com/wiremock/wiremock/releases/tag/4.0.0-beta.41
Everything is up on maven central if you want to update to the latest
The Big List Of Naughty Strings is a cool project. It contains a list of ‘interesting’ strings that you can use in your testing - thinkings like SQL injection, RTL text, zero-width characters, emoji, Zalgo text and more. The project can be found here:
https://github.com/minimaxir/big-list-of-naughty-strings
I thought it might be interesting to wrap these up in a WireMock extension that adds a naughtyString Handlebars helper, so templated responses can return strings from the BLNS. That extension can be found here:
https://github.com/leeturner/wiremock-blns-extension
As usual, I have added an example to my WireMock Docker example:
Take it for a spin and let me know what you think
I have been playing around building TUIs recently. I have to say, TamboUI is an awesome option if you are a JVM dev wanting to do something in this area.
Micronaut Launch TUI - https://github.com/leeturner/micronaut-launch-tui
TamboUI - https://tamboui.dev/
Last week I put together a little Micronaut Framework WireMock extension to allow WireMock to be easily used inside tests. It uses the same annotations as the WireMock spring boot extension. At the moment it only supports http-based WireMock services but it does support the latest Micronaut and the latest WireMock OSS 4 beta so you get all the messaging and SSE support in there.
Along with that, I watched Faster Development with Java, Python, and Micronaut by Graeme Rocher and Thomas Wuerthinger from Devoxx Belgium. I have never been much of a python dev but Pyronaut looks amazing and definitely worth a try. Link to the video below.
I decided to see if I could get my extension up and running on a Pyronaut Python application and other than a small class loader issue that needed fixing in my extension it all worked really well. Full end to end testing in Python, running on Pyronaut, using WireMock to mock out the upstream APIs. Very cool.
The latest version of the extension is up on maven central if you want to try it out. Let me know what you think.
Links:
Extension: https://github.com/leeturner/wiremock-micronaut
Pyronaut example: https://github.com/leeturner/wiremock-micronaut/tree/main/examples/pyronaut
Devoxx talk: https://www.youtube.com/watch?v=zo6L7bxn4OY
Pyronaut: https://pyronaut.io/
Last week beta 39 of WireMock OSS v4 dropped. Along with the usual bug fixes and dependency updates, this release built on the messaging support already there to add support for Server Sent Events. This now opens up a wide range of testing capabilities and we are already making good use of this internally on the WireMock eng team. If you use SSE in your app I would love to hear what you think. I have updated the WireMock OSS docker example I have with a simple train departure board demo.
https://github.com/wiremock/wiremock/releases/tag/4.0.0-beta.39
https://github.com/leeturner/wiremock-standalone-docker-example
Looking forward to a great few days ahead
Flights and accomodation booked for KotlinConf. Feels a little more real now :)
The real skill is knowing when to stop decorating 
Nice to see the @intellijidea @wiremockorg plugin updated to WireMock version 3.9.2.
Nice to get back home after a few days away to find my new #adventofcode t-shirt had been delivered 
RT @wiremockorg: The WireMock team is excited to announce the release of WireMock version 3.10.0. This release includes a number of depende…
Really great to see so many people at the WireMock talk today 🙏 https://x.com/wiremockorg/status/1864346019476992106
RT @wiremockorg: Great to chat to so many of you this morning as APIDays Paris kicked off. Come by stand 18 and chat to the team. https://t…
See you in a few hours Paris #APIDays 
Always greatful for the nice gentle intoduction to the first day of #AdventOfCode . Solving these puzzles always reminds me of how good the standard library is in @kotlin
Myself and a few of the @wiremockorg team will be in Paris next week at #APIDays
It would be great to chat. Come by the WireMock stand and say hi.
I will also be giving a talk on how to develop in parallel and ship earlier with OpenAPI and mocking.
Can’t believe that Adevnt of Code starts on Monday. Also great to see the Kotlin videos sheduled in already.
If you can, be sure to sponsor or buy some merch for the Advent of Code. It is a huge effort to run this every year.
https://adventofcode.com/ https://www.youtube.com/watch?v=r7nMRJ57QA0
Can’t believe that Adevnt of Code starts on Monday. Also great to see the Kotlin videos sheduled in already.
I’ll be at a conference the first week of December so I’ll be playing catchup for the first few days. If you can, be sure to sponsor or buy some merch for the Advent of Code. It is a huge effort to run this every year.
This is a great post on the current state of Kotlin Script.
The section on the continued support for .main.kts files was music to my ears
https://blog.jetbrains.com/kotlin/2024/11/state-of-kotlin-scripting-2024/
This is a great post on the current state of Kotlin Script. This section was music to my ears
We will continue to develop the .main.kts script type, which is already helpful for simple automation tasks. We have
plans to extend its functionality and streamline IDE support. Such scripts continue to be supported out of the box in
the Kotlin compiler and the Kotlin plugin for IntelliJ IDEA.
https://blog.jetbrains.com/kotlin/2024/11/state-of-kotlin-scripting-2024/
NeovimConf live starts today - https://neovimconf.live/ Streamed live on Twitch - http://twitch.tv/theprimeagen
NeovimConf live starts today - https://neovimconf.live/ Streamed live on Twitch - http://twitch.tv/theprimeagen
It’s been a great week of live music. From Cigarettes After Sex live at the O2 to the amazing Cardinal Black at a local venue in Brighton
Enjoyed my usual installment of Pairing With Duncan. This series on Gradle is really good
The latest installment of Pairing With @duncanmcg is great. This series on Gradle is really good - https://www.youtube.com/watch?v=7AxDwkRVkuA
WireMock are looking for a London Based Solutions Engineer to join our team. Come and join us - https://www.wiremock.io/careers/solutions-engineer
Even though LinkedIn jumped the gun a little, it is my 1 year anniversary at WireMock next week. The team has built some awesome dev tooling over the course of the last year - tooling that I wish I had access to in previous projects - OpenAPI, stateful mocking, mocks using your own data, gRPC and more. Not only that, it has been great to be a part of an active open source project with a great community behind it.
It is my 1 year anniversary at @wiremockorg next week. The team has built some awesome dev tooling over the course of the last year. Here is my anniversary mock API with a chunked dribble response delay and a little bit of response templating thrown in for good measure.
RT @ericwastl: #AdventOfCode 2024 sponsorship is now open! If your organization might be interested in sponsoring, please have them email s…
RT @wiremockorg: 🆕 We’ve got a glorious new documentation portal for WireMock Cloud – including, for the first time ever, the API reference…
RT @sdelamo: New in @GitBookIO”Free open source documentation that helps fund your project”
RT @picimako: Earlier this week I’ve had the opportunity to have a longer discussion with @leeturner from the @wiremockorg team, which was…
RT @ChrisPHemingway: “Wake Up” has finally been released! 🎉✨ I’m incredibly grateful to everyone who helped me 🙏💖 I hope you enjoy listenin…
RT @wiremockorg: WireMock 3.9.2 Released!
The WireMock team is excited to announce the release of WireMock version 3.9.2. Check out the f…
RT @wiremockorg: If you use our official WireMock Docker images you might be interested in the new guide put together by the team at @Docke…
RT @picimako: WireMocha v1.0.35 is now out!
It improves support for workspaces, and now more accurate HTTP Client requests are generated f…
It was great fun talking to @holly_cummins and @maxandersen on @QuarkusIO insights. Take a look at their latest newsletter for links if you missed it. https://x.com/wiremockorg/status/1847303584032969068
I love this plugin https://x.com/dmitrykandalov/status/1846650069593760124
RT @QuarkusIO: ⏰ Starting soon! Join us for Quarkus Insights Ep. #182 as Tom Akehurst & Lee Turner join us to discuss how to use the Wiremo…
Upgraded a side project to @JetBrainsKtor 3 this evening. Seamless update from the beta releases. The performance improvements are really impressive.
RT @wiremockorg: @TomAkehurst and @leeturner from the wiremock engineering team will be joining @QuarkusIO insights to chat about wiremock…
Really looking to chatting about @QuarkusIO @wiremockorg and all things http and gRPC mocking on Monday. Come and join us. https://x.com/QuarkusIO/status/1844724802323415429
If you didn’t get chance to make it to APIDays London, all of the talks are now available. Make sure to checkout the talk from @TomAkehurst on “Develop in Parallel and Ship Earlier with OpenAPI and Mocking”.
https://www.youtube.com/playlist?list=PLmEaqnTJ40OqbQxuqolXoNc2FTRJpgCpd
RT @wiremockorg: We’re pleased to announce we’ve officially adopted the WireMock <-> Spring Boot integration project created by @maciejwalk…
If you use @JetBrainsKtor take a few mins to fill out the ktor annual research