Ping Pong Service

This is a project to demonstrate the capabilities of:

• RSocket RPC
• more to come, see roadmap

RSocket RPC IDL Background

RSocket RPC (like gRPC) uses protocol buffers as the Interface Definition Language (IDL) for describing both the service interface and the structure of the payload messages.

This IDL is essentially text and is shared by communicating parties (client, server etc) and using RSocket RPC libraries the client and server can be generated in various programming languages. Java being the one that was chosen for this project.

See PingPongService IDL

Building

./gradlew clean build

Running

To run a server instance of the service: ./gradlew startServer

The following clients are available to demonstrate capabilities:

• PingAndForgetClient (./gradlew startPingAndForgetClient) Starts up a client which will send a single ping to the server and shutdown. The server is configured programmatically shutdown when this happens.
• SinglePingAndPongClient (./gradlew startSinglePingAndPongClient) Starts up a client which will send a single ping and wait for a single pong from the server.
• SinglePingAndLotsOfPongsClient (./gradlew startSinglePingAndLotsOfPongsClient) Starts up a client which will send a single ping to the server and get multiple pongs back

The following clients are still a work in progress:

• PingsAndPongsClient - WIP
• PingsAndSinglePongClient - WIP

Roadmap

• Get project working with JIP, to dockerize the app
  • https://phauer.com/2019/no-fat-jar-in-docker-image/
• Host service within Micronaut
• Complete PingPong Service/Client project
  • Two streaming options are not working yet