Javalin - A Simple REST API Library for Java/Kotlin

[Fi8sVrs]

Introducing Javalin

Javalin is a very lightweight web framework for Kotlin and Java, inspired by Sparkjava and koa.js. Javalin is written in Kotlin with a few functional interfaces written in Java. This was necessary to provide an enjoyable and near identical experience for both Kotlin and Java developers.

 

Java quickstart
Add dependency (maven)

<dependency>
    <groupId>io.javalin</groupId>
    <artifactId>javalin</artifactId>
    <version>1.0.0</version>
</dependency>

Start programming

import io.javalin.Javalin;

public class HelloWorld {
    public static void main(String[] args) {
        Javalin app = Javalin.start(7000);
        app.get("/", ctx -> ctx.result("Hello World"));
    }
}

Kotlin quickstart
Add dependency (gradle)

compile 'io.javalin:javalin:1.0.0'

Start programming

import io.javalin.Javalin

fun main(args: Array<String>) {
    val app = Javalin.start(7000)
    app.get("/") { ctx -> ctx.result("Hello World") }
}

Special thanks:

• Blake Mizerany, for creating Sinatra
• Per Wendel, for creating Spark
• Christian Rasmussen, for being a great guy
• Per Kristian Kummermo, also for being a great guy

 

Download: javalin-master.zip

or

git clone https://github.com/tipsy/javalin.git

Sources:

• https://javalin.io/news/javalin-1.0.0-stable.html
• https://github.com/tipsy/javalin