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Example of Broadcast Routing with Netifi and RSocket
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README.md

netifi-broadcast-example

An example showing how to broadcast a message to multiple services using Netifi and RSocket.

What is Netifi?

Netifi is a platform for building cloud-native applications with the power of RSocket.

Netifi provides service discovery, load-balancing, streaming, and back-pressure without deploying a whole host of infrastructure components and without polluting your code with circuit breakers and client-side load-balancing.

Check out www.netifi.com for more information.

Project Structure

This example contains the following projects / directories:

  • client - Client that sends broadcast messages to a group.
  • service - Service that is listening for messages.
  • service-idl - Defines the API contract for the example service.

Building the Example

Run the following command to build the example:

./gradlew clean buildImage

Running the Example

Follow the steps below to run the example:

  1. Run the following commands to start a Netifi Broker and several instances of the example service:

     cd docker
     docker-compose up
    
  2. In a new terminal, run the following command to start the broadcast client:

     docker run -e SPRING_PROFILES_ACTIVE='localdocker' netifi-broadcast-example/client
    

    If successful, you will see the broadcast messages being sent in the console:

     Sending: This is broadcast test message 1 
     Sending: This is broadcast test message 2 
     Sending: This is broadcast test message 3 
     Sending: This is broadcast test message 4
    
  3. Switch back to the terminal where you launched the Netifi Broker and the Service instances:

    If broadcast messages are being successfully sent you will see them arriving at each instance in the logs:

     example-service2    | 2019-11-24 05:24:09.087  INFO 1 --- [tor-tcp-epoll-4] example.service.ExampleServiceImpl       : Received Broadcast Message: This is broadcast test message 1
     example-service1    | 2019-11-24 05:24:09.085  INFO 1 --- [tor-tcp-epoll-4] example.service.ExampleServiceImpl       : Received Broadcast Message: This is broadcast test message 1
     example-service3    | 2019-11-24 05:24:09.087  INFO 1 --- [tor-tcp-epoll-4] example.service.ExampleServiceImpl       : Received Broadcast Message: This is broadcast test message 1
     example-service2    | 2019-11-24 05:24:10.065  INFO 1 --- [tor-tcp-epoll-4] example.service.ExampleServiceImpl       : Received Broadcast Message: This is broadcast test message 2
     example-service3    | 2019-11-24 05:24:10.073  INFO 1 --- [tor-tcp-epoll-4] example.service.ExampleServiceImpl       : Received Broadcast Message: This is broadcast test message 2
     example-service1    | 2019-11-24 05:24:10.073  INFO 1 --- [tor-tcp-epoll-4] example.service.ExampleServiceImpl       : Received Broadcast Message: This is broadcast test message 2
     example-service1    | 2019-11-24 05:24:11.101  INFO 1 --- [tor-tcp-epoll-4] example.service.ExampleServiceImpl       : Received Broadcast Message: This is broadcast test message 3
     example-service2    | 2019-11-24 05:24:11.102  INFO 1 --- [tor-tcp-epoll-4] example.service.ExampleServiceImpl       : Received Broadcast Message: This is broadcast test message 3
     example-service3    | 2019-11-24 05:24:11.104  INFO 1 --- [tor-tcp-epoll-4] example.service.ExampleServiceImpl       : Received Broadcast Message: This is broadcast test message 3
    

Bugs and Feedback

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

License

Copyright 2019 Greg Whitaker

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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