I am opening a websocket

val client = HttpClient {
    install(WebSockets) 
}
 client.webSocket( urlString = "<wss://sampleA.com/websocket>") {
        // listen to incoming messages         
 }

Is it possible now to close this websocket and open another one with different url?

client.webSocket( urlString = "<wss://sampleB.com/websocket>") {
               
 }

You can call the

webSocketSession

method to have a control over the session:

val client = HttpClient(CIO) {
    install(WebSockets)
}
val session = client.webSocketSession("<wss://ws.postman-echo.com/raw/>")
// Do something with the session
session.send(Frame.Text("hello"))
session.close()
val session2 = client.webSocketSession("<wss://ws.postman-echo.com/raw/>")

Thanks will try it.