c#:

	public void OnPlayerHealthChangeHandler(Client player, int oldValue)
	{
		API.sendChatMessageToPlayer(player, "fire the shard!");
		API.triggerClientEvent(player, "display_color_shard", "Welcome Back " + player.name, "Happy to see you.!", 2, 10, 30000);
	}

js:

API.onServerEventTrigger.connect(function(eventName, args) {
    if (eventName == "display_subtitle") {
        API.displaySubtitle(args[0], args[1]);
    } else if (eventName == "display_shard") {
        API.showShard(args[0], args[1]);
    } else if (eventName == "set_marker_color") {
        API.setMarkerColor(args[0], 30, args[1], args[2], args[3]);
    } else if (eventName == "set_blip_color") {
        API.setBlipColor(args[0], args[1]);
    } else if (eventName == "play_sound") {
        API.playSoundFrontEnd(args[0], args[1]);
    } else if (eventName == "display_color_shard") {
        API.showColorShard(args[0], args[1], args[2], args[3], args[4]);
	}
});