How to get the key bindings of a player?

short ago i learn this way to get the main keys in the server side only 

	if (!player.getLevel().isClientSide()) {
Minecraft instance = Minecraft.getInstance();
KeyMapping keyUse = instance.options.keyUse;
KeyMapping keyAta = instance.options.keyAttack;
KeyMapping keyMid = instance.options.keyPickItem;

//Player pe = instance.player;

if( keyUse.isDown() ) {
System.out.println("tick( Right use " + keyUse.getKey().getValue() + ");");
}

if( keyAta.isDown() ) {
System.out.println("tick( Left atack " + keyAta.getKey().getValue() + ");");
}

if( keyMid.isDown() ) {
System.out.println("tick( Middle pick " + keyMid.getKey().getValue() + ");");
}


}
	

 

if is custome keybinds you have to search youtube for kaupenjoe courses about keybinds and networking 

 

I thought Minecraft is a client-side only class?

It is. The code provided will crash on dedicated servers, and only check the host keybindings in a LAN world. It should not be used.

Do I just send a packet to the server?

What are you trying to achieve?