How do I limit message size and handle pings in Swift?

In Swift, you may need to limit the size of messages and handle ping requests when dealing with WebSocket connections. This can be achieved by implementing specific methods within your WebSocket delegate. Below is an example of how to limit message size and properly respond to ping messages.

import Foundation import Network class WebSocketServer { var listener: NWListener! init() { startServer() } func startServer() { listener = try! NWListener(using: .tcp, on: 8080) listener.newConnectionHandler = { (newConnection) in self.handleNewConnection(newConnection) } listener.start(queue: .global()) } func handleNewConnection(_ connection: NWConnection) { connection.start(queue: .global()) // Receive messages connection.receive(minimumIncompleteLength: 1, maximumLength: 1024) { (data, context, isComplete, error) in if let data = data, let message = String(data: data, encoding: .utf8) { self.handleMessage(message, for: connection) } } // Handle pings self.handlePings(for: connection) } func handleMessage(_ message: String, for connection: NWConnection) { if message.count > 256 { print("Message too long, ignoring.") return } print("Received message: \(message)") // Echo back the message let response = "Echo: \(message)" if let responseData = response.data(using: .utf8) { connection.send(content: responseData, contentContext: NWConnection.ContentContext(identifier: UUID().uuidString, isFinal: true), completion: .contentProcessed({ (error) in if let error = error { print("Error sending response: \(error)") } })) } } func handlePings(for connection: NWConnection) { // Logic to handle ping messages // This could include responding with a pong message } } // Example of creating the WebSocket server let server = WebSocketServer() 


Swift WebSocket message size limit handle ping

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