create a udp server on a specific port in swift

main.swift
import Network

let queue = DispatchQueue(label: "udp-server-queue")
let server = NWListener(using: .udp)
let port: UInt16 = 8080

server.service = NWListener.Service(name: "udp-server", type: "_udpserver._udp", domain: "")

server.stateUpdateHandler = { state in
    switch state {
    case .ready:
        print("UDP server started on port \(port)")
    case .failed(let error):
        print("UDP server failed, error: \(error)")
        server.cancel()
    default:
        break
    }
}

server.newConnectionHandler = { connection in
    connection.start(queue: queue)
    
    connection.receiveMessage { (data, context, isComplete, error) in
        if let data = data, !data.isEmpty {
            let message = String(decoding: data, as: UTF8.self)
            print("Received message: \(message)")
        }
        
        if let error = error {
            print("Error receiving message: \(error)")
        }
        
        if isComplete {
            connection.cancel()
        }
    }
}

server.start(queue: queue)
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