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.
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hello-world : "Hello world" application with a single endpoint.
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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.
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graphql : Using the http4k graphql routing module to build an API which exposes a data graph backed by the GraphQL-Java library.
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hexagonal: Writing Hexagonal http4k applications with DomainDrivenTests.
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hexagonal-arrow: Writing Hexagonal http4k applications with Functional Error Handling via Arrow with DomainDrivenTests.
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hotwire : Serve a Hotwire application via http4k (with Websocket support)!
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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.
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oauth : Using the http4k OAuth support, shows how to protect resources for use with an external auth provider such as Google or Auth0.
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openapi : Using the http4k contract routing module to build an API which is auto-documented in a generated OpenAPI3 specification.
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quarkus : "Hello world" application with a single endpoint, compiled to a native binary using Quarkus.
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react-app : Combines a React front end with an http4k backend.
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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.