Networking

Go’s netpackage holds everything you need to work with protocols like TCP, UDP and HTTP. Therefore, Go is a sollid choice for building networking applications.

l, err := net.Listen("tcp", "0.0.0.0:6379")
 
if err != nil {
	fmt.Println("Failed to bind to port 6379")
	os.Exit(1)
}

Accepting TCP connections:

conn, err := l.Accept()
if err != nil {
	fmt.Println("Error accepting connection: ", err.Error())
	os.Exit(1)
}

Data from packages the server received can be read like this:

for {
	buf := make([]byte, 1024)
	_, err := conn.Read(buf)
		
	if err != nil {
		fmt.Println("Error reading: ", err.Error())
		break
	}
	
	fmt.Println("Received: ", string(buf))
}

Data can be send by writing to the connection:

	_, err = conn.Write([]byte("+PONG\r\n"))
	if err != nil {
		fmt.Println("Error writing: ", err.Error())
		break
}