Ping Pong (Gradle)

Overview

This demo uses Myra Codec to generate a payload and Myra Transport to send ping and pong messages between a client and server. Registered buffers and the NIO backend are configured via TransportConfig.

Clone and run

1. Install Java 25 and Git, then confirm the toolchain.

   java --version

2. Clone the examples repository.

   git clone https://github.com/mvp-express/examples.git

3. Move into the Gradle ping pong example folder.

   cd examples/myra-codec-transport-ping-pong-gradle

4. Generate sources and the lock file.

   ./gradlew codegen

5. Start the server in one terminal.

   ./gradlew runServer

6. Start the client in another terminal.

   ./gradlew runClient

The Gradle tasks enable preview and native access flags automatically. On Windows, use gradlew.bat.

Concepts highlighted

• Codec generated Payload message for ping and pong.
• TransportConfig with the NIO backend and registered buffers enabled.
• Server side polling via TransportBackend and explicit send/receive flow.
• Client side Transport with callbacks in TransportHandlerAdapter.
• Pooled buffers and scratch segments for low allocation throughput.

Files to explore

• src/main/resources/schemas/ping_pong.myra.yml
• src/main/java/express/mvp/myra/examples/pingpong/PingPongServer.java
• src/main/java/express/mvp/myra/examples/pingpong/PingPongClient.java