The Functional toolkit for Kotlin HTTP applications.

Joined May 2017
21 Photos and videos
http4k retweeted
6 Nov 2025
Wonder how Java open source projects use JetBrains IntelliJ? Here are examples from: Part 2 includes Selenide (among Spring, Play, Koin, Micronaut, OpenGrok, jsoup, http4k, Flix and Kobweb). Part1: blog.jetbrains.com/blog/2025… Part 2: blog.jetbrains.com/blog/2025…
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http4k retweeted
Explore all the server-side talks from KotlinConf 2025 in one place! 👉 kotl.in/rm09wq?utm_source=tw… 🐦 Spring Kotlin: Deeper Integration 🐦 Ktor, Exposed, http4k and other ecosystem updates 🐦 Kotlin and AI tools 🐦 Industry adoption highlights 🐦 And more!
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http4k retweeted
We are LIVE!!!! Go check out the NEW SITE, NEW GUIDE, NEW DOCS!! And then, when you’ve recovered from the awesomeness, go read the “V1 and Beyond” essay (much 🔥🌶️). Thank you to everyone who has contributed. It’s been an incredible journey getting here; now time to be boring!

ALT It'S Done - Finished GIF

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http4k retweeted
Highlights from @kotlinconf "We want to see more websites using Datastar". Thanks @http4k !
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17 Feb 2025
🚀 http4k v6 is out! 🚀 Java support has been bumped to 21, routing was rewritten and is now multi-protocol, new web framework bridges, Pro modules and much more! Read the full announcement here: http4k.org/v6

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11 Dec 2024
In preparation for http4k v6, we have released v5.40.0.0 of the http4k ecosystem, which introduces an expand/contract in the Maven coordinates of some modules. Details can be found in the changelog: http4k.org/ecosystem/changel…
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3 Dec 2024
🚀We're announcing the next chapter in the http4k ecosystem - version 6 🚀, including the introduction of the new http4k Enterprise Edition (EE) subscription. You can read the full announcement here: http4k.org/news/http4k-v6-an…
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http4k retweeted
Day 4 at #GITEXGlobal was packed with insights! 🌟 From learning about the #http4k protocol to key tips for AI startups, an engaging chat with Digital Einstein, a #DevOps presentation, and a roundtable on AI's future, so much to take in! #PharoscionGlobal #AI #FutureTech
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17 Sep 2024
We had a nice reaction to the http4k IntelliJ plugin, so we decided to make it even better, by folding all of the http4k Toolbox functionality right into the IDE, including OpenAPI server generation, JSON to Dataclasses, and raw HTTP to http4k req. Available now inside IntelliJ
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5 Sep 2024
We're excited to announce that the http4k Project Wizard plugin is now available on the JetBrains Plugin Marketplace! With our shiny new plugin, setting up new http4k projects is now a complete breeze- direct from your IDE. Install direct from IntelliJ or plugins.jetbrains.com/plugin…
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21 Aug 2024
🚀Today we're proud to launch a site for http4k Connect project: an entire http4k sub-ecosystem concentrating on the creation of modular API Client libraries. Supports many popular Cloud and AI services, or implement your own with the Connect pattern 🚀 connect.http4k.org
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10 Aug 2024
Conceptually simple ✅ Tiny core ✅ Zero dependencies ✅ Makes people inexplicably mad ✅ HTMX truly is a library after our own ❤️ (and we do have a module for it 😉) We'd considered poaching the CEO for our social media team, but they seem hard to pin down...
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http4k retweeted
What if we build a web server just as a transformer of HttpRequests into HttpResponses? Ooops, they already did it! @http4k
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16 Jul 2024
⭐️Hey everyone! ⭐️ 🎉As we continue to grow the http4k platform, we’d love to gather some insights from our users who are using the libraries at work. 1/4
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16 Jul 2024
Are your projects big or small? What’s working well? What challenges are you facing? Any features you’re dreaming of? And a million other questions that we haven't listed here! 🤝 3/4
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16 Jul 2024
🌈 Even better than immediate feedback in Twitter - we'd love to arrange some calls so that we can meet your teams and chat to them to get as much info as we can. Drop your thoughts below or feel free to DM and we'll be in touch. 🫶 4/4
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4 Jun 2024
Inspired by the talk at KotlinConf, we've released first class lens support for DataFrame in v5.21.2.0 of http4k. It's in maven now and you can see docs on using it here: http4k.org/guide/reference/d…

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24 May 2024
We are http4k and we are legion. Ps. @GarthGilmour 's talk was awesome. Definitely check it out when it's published. 🙃
TFW you're about to present on @JetBrainsKtor at @kotlinconf, and the @http4k posse camp out in the front row...
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24 May 2024
Hot on the heels of the Kotlin 2.0 release at KotlinConf, we've just upgraded the entire http4k ecosystem to use the new version. The main build for all 60 modules in the monorepo now takes only 65 seconds.🚀
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