advanced-communication

Example of Advanced Communications across Multiple Wookiee Instances

In this repo we utilize both wookiee-discovery and wookiee-web to create a robust-yet-light discovery and communication system.
This example will show how to create two Wookiee services: one internal-only that is exposed via wookiee-discovery to be messaged via gRPC, and one that is external (with HTTP and WS support) that sends along messages to the internal-only service.

How to Run

1. Load in the IntelliJ run configurations from the Run Configurations folder.
2. Kick off the 'Example External Wookiee' configuration first, this will expose HTTP GET endpoints
3. Kick off the 'Example Internal Wookiee' configuration second, this will expose a gRPC endpoint
4. Hit the HTTP GET endpoint with a browser or curl, the returned message will have been sent back and forth between the two services
   1. The first HTTP GET endpoint is at http://localhost:8081/external/first-input
   2. The second HTTP GET endpoint is at http://localhost:8081/external/second-input/functional
5. Hit the WS endpoint with a websocket tool like https://www.piesocket.com/websocket-tester
   1. The first WS endpoint is at ws://localhost:8080/ws/user-id-input
   2. The second WS endpoint is at ws://localhost:8080/ws/user-id-input/functional

Note: Whichever Service is started first will create a local Zookeeper instance. If this Service is restarted then the other Service will need to be restarted too to get the new Zookeeper connection.

Run Configurations

If the run configurations are not loaded in, you can create them by following these steps: Name: Example External Wookiee Main Class: com.oracle.infy.wookiee.app.HarnessService Module: advanced-communication Program Arguments: -Dconfig.file=src/main/resources/application.conf Environmental Variables: -DserviceClass=ExternalWookieeService

Copy the above configuration and change the following: Name: Example Internal Wookiee Environmental Variables: -DserviceClass=InternalWookieeService