rsocket-setupmetadata-example

An example of sending metadata on connection setup with RSocket.

In this example the hello-client sends its "clientId" when setting up a connection to the hello-service. When the client requests a hello message from the service it returns the message along with the client's identifier that it set during the connection setup.

Building the Example

Run the following command to build the example:

./gradlew clean build

Running the Example

Follow the steps below to run the example:

1. Run the following command to start the hello-service:

    ./gradlew :hello-service:run
   

   If the service has started successfully you will see the following in the terminal:

    > Task :hello-service:run
    [main] INFO example.hello.service.HelloService - RSocket server started on port: 7000
   

2. In a new terminal, run the following command to send a request for a hello message with the hello-client:

    ./gradlew :hello-client:run --args=Bob
   

   If successful, you will see that the client connected and specified its client identifier in the hello-service terminal:

    [reactor-tcp-nio-2] INFO example.hello.service.HelloService - Hello client connected: f538925a-c4be-41d5-93cf-f9250e3a8651
   

   and in the hello-client terminal you will see that the client id was sent back with the hello message:

   > Task :hello-client:run
   [main] INFO example.hello.client.HelloClient - Sending request for 'Bob'
   [main] INFO example.hello.client.HelloClient - Response: Hello, Bob! [clientId: f538925a-c4be-41d5-93cf-f9250e3a8651]
   

Bugs and Feedback

For bugs, questions, and discussions please use the Github Issues.

License

MIT License

Copyright (c) 2020 Greg Whitaker

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.