Introduction
Quickstart
About the docs
Concepts
Rationale HTTP Serverless WebSockets Server-Sent Events
Tutorials
Your first http4k app Deploying an http4k app to AWS Lambda Going native with Graal on AWS Lambda TDDing http4k
How-to guides
Overview Basic: Server as a function Basic: Client as a function Basic: Use a Server backend Basic: Different test-types Basic: Simple routing Basic: Nestable routes Attach context to a request Configure an OAuth Server Create a custom JSON marshaller Customise a Server backend Deploy WebJars Integrate with OpenAPI Leverage GraphQL Lookup a User Principal Monitor http4k Record & replay HTTP traffic Serve Server-Sent Events Serve Websockets Structure your logs with Events Test using Service Virtualisation Typesafe your API with lenses Secure and auth HTTP services Use a custom OAuth Provider Use a templating engines Use HTML forms Use Multipart forms Create a Distributed Tracing tree Use Auto Content Negotiation Create a Swagger UI
Reference
Overview API docs Core Server backend Serverless backend HTTP & Websocket clients Typesafe contracts (OpenAPI3) JSON handling Templating Multipart forms Cloud Native Configuration Cloud Events Micrometer OpenTelemetry Resilience4J AWS OAuth GraphQL JSON RPC XML handling YAML handling Testing
Overview Approval Testing Chaos Testing Hamkrest Kotest Service Virtualisation Strikt WebDriver
Blog
Overview Meet http4k Typesafe Websockets Typesafe 12-factor config Documenting http4k apps with OpenApi3 Retrospective on v3 Nanoservices Toolbox: Guns for show, knives for a pro http4k v4 - 17 platforms and counting... JCenter Shutdown
Changelog
http4k in action
Performance
FAQ
Getting support
Contribute/support http4k
Code of Conduct
Source Code

http4k Modules overview¶

http4k Modules overview¶

Core functionality¶

HTTP Server Backends¶

HTTP Serverless Backends¶

HTTP Clients¶

Messaging formats¶

Templating libraries¶

Cloud-Native & Observability¶

Testing¶