A secure WebSocket client using Ballerina

secure_websocket_client.bal

import ballerina/io;
import ballerina/http;

string ping = "ping";
byte[] pingData = ping.toBytes();


public function main() {
    http:WebSocketClient wsClientEp = new("wss://echo.websocket.org", config={secureSocket: {
            trustedCertFile:"/home/riyafa/websocketorg.crt"
        },
        callbackService: ClientService
    });
    checkpanic wsClientEp->ping(pingData);
}
service ClientService =@http:WebSocketServiceConfig {} service {

    //This resource is triggered when a new text frame is received from the remote backend.
    resource function onText(http:WebSocketClient caller, string text, boolean finalFrame) {
            io:println(text);
        }
    resource function onPong(http:WebSocketClient caller, byte[] data){
        io:println("pong");
    }
};