GoLang. gob server. Waits for connection from gob client.

go-gob-server.go

// Server

package main

import (
	"encoding/gob" // Package for encoding and decoding data
	"fmt"          // Package for formatted I/O
	"net"          // Package for network operations
)

// Message represents the structure of the message received from the client
type Message struct {
	Content string // Content field holds the actual message content
}

// handleConnection is a function that handles the communication with a client connection
func handleConnection(conn net.Conn) {
	// Create a decoder to decode the binary data received from the client connection
	decoder := gob.NewDecoder(conn)

	// Create a new empty message to hold the decoded message content
	var message Message

	// Decode the message received from the client into the message variable
	err := decoder.Decode(&message)
	if err != nil {
		fmt.Println("Error decoding message:", err)
		return
	}

	fmt.Println("Received message:", message.Content) // Print the received message content

	conn.Close() // Close the connection with the client
}

func main() {
	// Listen for incoming connections on TCP port "localhost:1234"
	listener, err := net.Listen("tcp", "localhost:1234")
	if err != nil {
		fmt.Println("Error listening:", err)
		return
	}
	defer listener.Close() // Close the listener before exiting the main function

	fmt.Println("Server started. Waiting for connections...")

	// Accept and handle client connections in a loop
	for {
		// Accept a new client connection
		conn, err := listener.Accept()
		if err != nil {
			fmt.Println("Error accepting connection:", err)
			return
		}

		// Handle the client connection concurrently in a separate goroutine
		go handleConnection(conn)
	}
}