Overview

A signalr based app & client to demonstrate the pushing notification , commands to clients behind private network.

Client Application

.NET SignalR client , that subscribe to notification & commands from SignalR service. It also implements logic to increase/decrease the logging level based on the command from server without restarting the application A persistant bidirectional connection (Websocket) created to signalr service and receives commands & notfication. A background service receives commands and acts on it.

Server Application

ASP.NET Core SignalR service, that allows clients to subscribe for notification & commands.Provides a REST API to notify & send commands to connected clients.

End to End demo.

Running Server Application

• Change to SignalRService directory
• Run the SignalRService server. Server will start on port 5189

    dotnet run 

Running SiganlR Client

• Change to SignalRClient directory
• Run the SignalRClient app. Client app is hardcoded to connect to server @ http://localhost5189

    dotnet run 

• Client print log message with default log level.
• Send Request SignalRService to increase log level of the SignalRClient using the REST API

curl "http://localhost:5189/Notify/changloglevel"   -H "accept: */*"   -H "Content-Type: application/json"   -d "{ \"groupName\": \"configchange\",  \"logLevel\": \"Trace\",  \"logCategory\": \"SignalRClient.Worker\"}"

• Now you should be able to see Client pring info & trace messages

SiganlR Service REST API

• Swagger API - http://localhost:5189/swagger

Running Service in Kubernetes

Running Service in Kubernetes