How would I save a list of players banned from a server?

Help and Feedback Scripting Support
#21

Hey guys since I was making more commands beside just the ban command in this script I feel like it might be better to show the whole script instead of the ban stuff.

local dataStore = dataStoreService:GetDataStore("dataStore")

local kickcommand = "!kick "
local bancommand = "!ban "
local unbancommand = "!unban "

local GroupId = 13646742

local RankIDOne = 255
local RankIDTwo = 23

local function kickFunc(name)	
	for _, player in pairs(game.Players:GetPlayers()) do
		local targetedPlr = string.find(player.Name:lower(),name)

		if targetedPlr then
			player:Kick("You were kicked!")
		end
	end	
end

local function banFunc(name)
	for _, player in pairs(game.Players:GetPlayers()) do
		local targetedPlr = string.find(player.Name:lower(),name)

		if targetedPlr then
			print("Hi")
			player:FindFirstChild("bannedVal").Value = true
			player:Kick("You have been banned!")
		end
	end
end

local function unBanFunc(name)
	for _, player in pairs(game.Players:GetPlayers()) do
		local targetedPlr = string.find(player.Name:lower(),name)

		if targetedPlr then
			player:FindFirstChild("bannedVal").Value = false
		end
	end
end

game.Players.PlayerAdded:Connect(function(player)
	
	if player:FindFirstChild("bannedVal") == true then
		print("Banning again")
		player:Kick("You can't join back because you are banned.")
		print("Banned")
	end
	
	local bannedVal = Instance.new("BoolValue",player)
	bannedVal.Name = "bannedVal"
	
	player.Chatted:Connect(function(message)
		if string.sub(message,1,string.len(kickcommand)):lower() == kickcommand:lower() then
			local UserName = string.sub(message,string.len(kickcommand) + 1):lower()
			kickFunc(UserName)
		end
	end)

	player.Chatted:Connect(function(message)
		if string.sub(message,1,string.len(bancommand)):lower() == bancommand:lower() then
			local UserName = string.sub(message,string.len(bancommand) + 1):lower()
			banFunc(UserName)
			bannedVal.Value = true
		end
	end)

	player.Chatted:Connect(function(message)
		if string.sub(message,1,string.len(unbancommand)):lower() == unbancommand:lower() then
			local UserName = string.sub(message,string.len(unbancommand) + 1):lower()
			unBanFunc(UserName)
		end
	end)
	
	local playerId = "Player_"..player.UserId

	local data

	local suc,err = pcall(function()
		data = dataStore:GetAsync(playerId)
	end)

	if suc then
		bannedVal.Value = data
	end

end)

game.Players.PlayerRemoving:Connect(function(player)
	local playerId = "Player_"..player.UserId

	local data = player:FindFirstChild("bannedVal").Value

	local suc, err = pcall(function()
		dataStore:SetAsync(playerId,data)		
	end)

	if suc then
	else
		warn(err)
	end
end)