Javalin is being made with inter-operability in mind, apps are built the same way in both Java and Kotlin. Flexible Javalin is designed to be simple and blocking, as this is the easiest programming model to reason about.

Javalin is primarily meant to be used with the embedded Jetty server, but if you want to run Javalin on another web server (such as Tomcat), you can use Maven or Gradle to exclude Jetty, and attach Javalin as a servlet.

Learn how to create a Javalin application with the Java Platform Module System (JPMS), Gradle and the built-in dependency injection mechanism through Java's ServiceLoader java Using Javalin with Bukkit, Spigot, Paper, BungeeCord, or Waterfall!

About Javalin. Javalin started as a fork of the Java and Kotlin web framework Spark, but quickly turned into a ground-up rewrite influenced by koa.js. Both of these web frameworks are inspired by the modern micro web framework grandfather: Sinatra, so if you’re coming from Ruby then Javalin shouldn’t feel too unfamiliar. Philosophy

Javalin aims to be very lightweight and has a codebase of around 8000 lines of Java/Kotlin code, as well as around 12 000 lines of test (750+ tests). The project owes much of its success to the remarkably supportive JVM open-source community.

May 24, 2017 · import io.javalin.Javalin fun main {val app = Javalin. create (/*config*/). get ("/") {ctx-> ctx. result ("Hello World")}. start (7070)} Depending on your setup, you might need to explicitly set the language level to Java 11.

Javalin looks for templates/markdown files in src/resources, and uses the correct rendering engine based on the extension of your template. Javalin currently supports six template engines (see below), as well as markdown. You can also register your own rendering engine.

Javalin is a true microframework with only one required dependency: SLF4J (logging). By default Javalin also depends on Jetty, but you can exclude if you want to use a different Webserver (like Tomcat, etc).

Sep 13, 2021 · Javalin is a very lightweight Java and Kotlin web framework which focuses on simplicity and Java/Kotlin interoperability. The codebase is about 7000 lines of mixed Java and Kotlin code , and about 10 000 lines of test .

Nov 17, 2022 · In this tutorial, we will learn how to secure our Javalin application with SSL and how SSL works. The first step to secure your application is to use HTTPS. HTTPS is the secure version of HTTP.