Instance Property

localPort

The local TCP port this listener is bound to (host byte order).

var localPort: UInt16 { get }

Mentioned In

How to Write an Async TCP Server in Swift
Handling Partial Reads in Swift TCP Sockets: Length-Prefix and Delimiter Framing

Discussion

Convenience over localAddress. Returns 0 if the address is not available (e.g. the socket is closed) or the address family is not AF_INET / AF_INET6.