rdncat

A Client-Server command-line tool that provides an echo server for TCP connections and a client to connect to any server accepting TCP connections.

The tool was created using Apple's NWFramework.

You can read the article explaining the command-line tool, here:

https://rderik.com/blog/building-a-server-client-aplication-using-apple-s-network-framework/

You can also get the "macOS network programming in Swift" guide. It includes more topics on building network applications on macOS, including:

• BSD Sockets in Swift
• Apple's Network.framework
• SwiftNIO

You can get it from the following link:

rderik.com - Guides