Showcase

Talks

Here's a curated list of talks worth watching. Check out the YouTube Playlist for the latest collection of talks featuring http4k.
Full Stream Ahead: Breaking the Protocol Barrier with http4k
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Functional Intelligence: Agents, MCP and the end of the Web(?)
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Build a REST API with Kotlin and Http4k
Have your Serverless Kotlin Functions and Eat Them Too
Exploring the Testing Hyperpyramid with Kotlin & http4k @KotlinConf
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Test Driven Gilded Rose in Kotlin by Duncan McGregor
Talking Kotlin ep. 99: HTTP as a function with http4k
http4k: Server as a Function (Kotlin Webinars vol. 3)
Introduction to http4k by Dmitry Kandalov
Writing Test Driven Apps with http4k @ Kotliners
Designing Microservices in Functional Style by Uberto Barbini @ VirtualJUG
Server as a Function. In Kotlin. _______________ @ KotlinConf

Standalone projects

Each project is tagged with the http4k features it demonstrates:

http4k/examples
A collection of examples using various http4k features.
AWS GraalVM Security GraphQL Hexagonal Hotwire OpenApi Quarkus Websockets
http4k/http4k-by-example
TDD’d example application
Templates Testing JSON / Lenses CD pipeline Approval Testing OpenApi Static resources
http4k/http4kbox
Dropbox clone in 100 lines of Kotlin
Testing Http Client Multipart AWS CD pipeline Serverless GraalVM
http4k/http4k-irc
Simple websocket driven chat-server in 30 lines of Kotlin
Testing Websockets CD Pipeline Static resources
http4k/http4k-todo-backend
Todo backend (standard routing)
Testing JSON / Lenses CD pipeline
http4k/http4k-contract-todo-backend
Todo backend (contract routing)
Testing JSON / Lenses OpenApi CD pipeline
alisabzevari/kotlin-http4k-realworld-example-app
Real World example (Medium clone)
Testing Contracts
pumb