Check is connected to WiFi

Network+isConnectToWiFi.swift

// https://developer.apple.com/library/archive/samplecode/Reachability/Introduction/Intro.html

func isConnectToWiFi() throws -> Bool {
  guard let reachability = Reachability.forInternetConnection() else {
    throw ReachabilityError.cannotCreateReachability
  }

  // 0 is not reachable
  // 1 is WiFi
  // 2 is Cellular
  guard reachability.currentReachabilityStatus() == .init(1) else {
    return false
  }

  return true
}