Rapidoid – No-Bullshit Web Framework for Java

Lots of people have done so, if you have the skills and determination. It also helps if you focus on that, instead of completeness, like Netty probably does.

You also forgot to mention what I need to import in order to have the "On" object.

Maybe you can include something like this template on your getting started page.

  import org.rapidoid.http.fast.*;
  // wget https://repo.maven.apache.org/maven2/org/rapidoid/rapidoid-http-fast/5.0.7/rapidoid-http-fast-5.0.7.jar
  public class App 
  {
    public static void main (String[] args)
    {
      On.get ("/size").json ("msg", msg -> msg.length ());
    }
  }

My sample pom.xml (feel free to use it if you like) is:

  <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.microservices.app</groupId>
    <artifactId>rest-app</artifactId>
    <packaging>jar</packaging>
    <version>1.0-SNAPSHOT</version>
    <name>rest-app</name>
    <url>http://maven.apache.org</url>
    <properties>
      <java.version>1.8</java.version>
      <maven.compiler.source>1.8</maven.compiler.source>
      <maven.compiler.target>1.8</maven.compiler.target>
    </properties>
    <build>
      <plugins>
        <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-assembly-plugin</artifactId>
          <version>2.6</version>
          <configuration>
            <descriptorRefs>
              <descriptorRef>jar-with-dependencies</descriptorRef>
            </descriptorRefs>
          </configuration>
          <executions>
            <execution>
              <id>assemble-all</id>
              <phase>package</phase>
              <goals>
                <goal>single</goal>
              </goals>
            </execution>
          </executions>
        </plugin>
      </plugins>
    </build>
    <dependencies>
      <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>3.8.1</version>
        <scope>test</scope>
      </dependency>
      <dependency>
        <groupId>org.rapidoid</groupId>
        <artifactId>rapidoid-web</artifactId>
        <version>5.0.5</version>
      </dependency>
    </dependencies>
  </project>

  java -cp target/rest-app-1.0-SNAPSHOT-jar-with-dependencies.jar App

The point was that if a new framework aims to capture enough attention and traction to be a sustainable alternative to the incumbents it has to support websocket .