Fully self-contained examples of using the various http4k features
These sample projects are designed to demonstrate how easy it is to use the various features of http4k in isolation. They are all entirely self-contained and can be run locally or using the included script to run them in a Docker container.
hello-world : "Hello world" application with a single endpoint.
aws-lambda-custom-runtime: Building and deploying HttpHandler
as a Serverless function with the lightweight http4k custom runtime (on Graviton).
aws-lambda-http: Building and deploying HttpHandler
as a Serverless function.
aws-lambda-events: Building and deploying an event-based FnHandler
as a Serverless function.
graalvm : "Hello world" application with a single endpoint, compiled to a native binary using GraalVM.
graphql : Using the http4k graphql routing module to build an API which exposes a data graph backed by the GraphQL-Java library.
hexagonal: Writing Hexagonal http4k applications with DomainDrivenTests.
hexagonal-arrow: Writing Hexagonal http4k applications with Functional Error Handling via Arrow with DomainDrivenTests.
hotwire : Serve a Hotwire application via http4k (with Websocket support)!
http4k-connect : A app which utilises the http4k-connect
libraries, which provide both a framework for http4k client connectors to external systems and Fake versions of those systems.
json-api : A app which uses Jackson to automatically marshall Kotlin data classes into JSON objects.
oauth : Using the http4k OAuth support, shows how to protect resources for use with an external auth provider such as Google or Auth0.
openapi : Using the http4k contract routing module to build an API which is auto-documented in a generated OpenAPI3 specification.
quarkus : "Hello world" application with a single endpoint, compiled to a native binary using Quarkus.
react-app : Combines a React front end with an http4k backend.
typesafe-configuration : Application configured using the typesafe configuration facility in the http4k-cloudnative
module..
web-content : Using the http4k templating system and serving static content.
bearer-auth : Use nimbus-jose-jwt to secure an API with bearer authentication