A concurrent TCP server

In this section, you will learn how to develop a concurrent TCP server: each client connection will be assigned to a new goroutine that will serve the client request. Note that although TCP clients initially connect to the same port, they are served using a different port number than the main port number of the server: this is automatically handled by TCP and is the way TCP works.

Note

Although creating a concurrent UDP server is also a possibility, it might not be absolutely necessary due to the way UDP works. However, if you have a really busy UDP service, then you might consider developing a concurrent UDP server.

The name of the program will be concTCP.go and will be presented in five parts. The good thing is that once you define a function to handle incoming connections, all you need is to execute that function as a goroutine, and the rest will be handled by Go!

The first part of concTCP.go is the following:

package main 
 
import ( 
   "bufio" 
   "fmt" 
   "net...