Samples for Ktor

A collection of ready-to-use samples for Ktor. If you're looking for older samples, please see our note on Docs and Samples Migration.

Applications

chat - A Chat application written using WebSockets and Sessions.
fullstack-mpp - An example of using Ktor as a client and server in a Kotlin Multiplatform project.
httpbin - HttpBin application implementing (large parts of) httpbin(1) HTTP request & response service.
kweet - A messaging application that uses FreeMarker templates and the Locations plugin.
reverse-proxy - A simple reverse proxy application.
reverse-proxy-ws - A reverse proxy application written using WebSockets.
youkube - A video upload/view application.
version-diff - An application showing the difference between artifacts in two versions of a project.
postgres - An application for creating, editing and deleting articles that uses Postgres database running on Docker image as a storage.
mongodb - An application for creating, editing and deleting articles that uses Mongodb running on Docker image as a storage.
mvc-web - An application for adding and removing wishes to wishlist that uses FreeMarker templates and Exposed.
opentelemetry - An application that uses Kotlin DSL to work with OpenTelemetry Ktor plugins.

di-kodein - An application showing how to use Kodein with a Ktor server.
filelisting - An application showing how to serve static files.
location-header - An application demonstrating how to use the HTTP Location headers.
sse - A Server Sent Events application.
structured-logging - An application showing how to use Ktor structured logging.
openapi - An application showing how to use Ktor's OpenAPI tooling.

client-mpp - A sample project showing how to use a Ktor client in a multiplatform application.
client-multipart - A sample showing how to send multipart data with the HTTP client.
client-tools - A sample showing several useful extension methods not included in Ktor itself.
client-native-image - A simple example of how to create a GraalVM native image with a Ktor Client application.

graalvm - Explains how to build and run a Ktor application in the GraalVM native image.
native-image-server-with-yaml-config - A sample showing how to build and run a Ktor application in the GraalVM native image with a YAML configuration file.
maven-google-appengine-standard - A sample showing how to deploy Ktor application to Google App Engine using Maven and Google App Engine.

Samples are provided as is under the Apache 2 OSS license.