How can I turn this script into DataStore 2?

[LocalWE (WilliApple)]

Hello developers! I recently started transfering all datastores to DataStore 2. This is the character shop. Here it is:

local starterCharScripts = game.StarterPlayer.StarterCharacterScripts

local ChangeCamSubject = game.ReplicatedStorage.Remotes.ChangeCamSubject

local new = Instance.new

local datastore = game:GetService("DataStoreService"):GetDataStore("Characters")
local updateAsync = datastore.UpdateAsync

local loadData = function(player)
	local id = player.UserId
	local data
	
	local success,output = pcall(function()
		data = datastore:GetAsync(id) 
	end)
	
	assert(success,output)
	
	if not data then
		data = {
			Characters = {},
			EquippedCharacter = "",
			leaderstats = {}
		}
	end	
	
	if not data.leaderstats then data.leaderstats = {} end
	
	for _,v in pairs(data.Characters) do
		local value = new("StringValue")
		value.Parent = player.Characters
		value.Name = v
	end
	
	for _,v in pairs(player.leaderstats:GetChildren()) do
		if data.leaderstats[v.Name] then
			v.Value = data.leaderstats[v.Name]
		end
	end
	
	player.EquippedCharacter.Value = data.EquippedCharacter
end

local saveData = function(player)
	local id = player.UserId
	local data = {
		Characters = {},
		EquippedCharacter = "",
		leaderstats = {}
	}
	
	for _,v in pairs(player.Characters:GetChildren()) do
		table.insert(data.Characters,v.Name)
	end
	
	for _,v in pairs(player.leaderstats:GetChildren()) do
		data.leaderstats[v.Name] = v.Value
	end	
	
	data.EquippedCharacter = player.EquippedCharacter.Value
	
	local success,output = pcall(updateAsync,datastore,id,function(old)
		return data
	end)
	
	assert(success,output)
end

local ChangeChar = function(player,charModel)

	player:LoadCharacter()
	local currentChar = player.Character
	local pos = currentChar.PrimaryPart.CFrame
	
	local animate = charModel:FindFirstChild('Animate')
	local health = charModel:FindFirstChild('Health')
	
	local curAnimate = currentChar:FindFirstChild("Animate")
	local curHealth = currentChar:FindFirstChild("Health")
	
	if not health and curHealth then
		curHealth:Clone().Parent = charModel
		curHealth:Destroy()
	end 
	
	charModel.Name = player.Name
	charModel.Parent = workspace
	player.Character = charModel
	charModel.PrimaryPart:SetNetworkOwner(player)
	charModel.PrimaryPart.CFrame = pos
	
	if not animate and curAnimate then
		curAnimate:Clone().Parent = charModel
		curAnimate:Destroy()
	end
	
	if not charModel.Humanoid:FindFirstChildOfClass("Animator") then
		local animator = new('Animator')
		animator.Parent = charModel.Humanoid
	end
	
	currentChar:Destroy()
	
	for _,v in pairs(starterCharScripts:GetChildren()) do
		if not charModel:FindFirstChild(v.Name) then
			v:Clone().Parent = charModel
		end
	end
	
	ChangeCamSubject:FireClient(player,charModel.Humanoid)
	
	charModel.Humanoid.Died:Connect(function()
		wait(game.Players.RespawnTime)
		updateChar(player)
	end)
end

updateChar = function(player)
	local equippedChar = player.EquippedCharacter.Value
	local chars = player.Characters
	local curChar = player.Character or player.CharacterAdded:Wait()
	local changing = player.ChangingChar
	
	if changing.Value then
		repeat wait(0.1) until not changing.Value
	end
	
	changing.Value = true
	
	if chars:FindFirstChild(equippedChar) then
		local module = game.ServerStorage.Characters:FindFirstChild(equippedChar)
		if module then
			local char = module:FindFirstChildOfClass("Model")
			ChangeChar(player,char:Clone())
		else
			player:LoadCharacter()
		end
	else
		player:LoadCharacter()
	end
	
	wait(0.1)
	changing.Value = false
end

local onJoin = function(player)
	
	-- // This is where we stored player money.
	local stats = player:WaitForChild("leaderstats")
	
	-- // This is where we store the purchased character.
	local characterfolder = new("Folder")
	characterfolder.Parent = player
	characterfolder.Name = "Characters"
	
	-- // Player's currency for the character shop.
	local money = stats:WaitForChild("Points")
	
	-- // Equipped Character Value
	local EquippedCharacter = new("StringValue")
	EquippedCharacter.Parent = player
	EquippedCharacter.Name = "EquippedCharacter"
	
	local changing = new("BoolValue")
	changing.Parent = player
	changing.Name = "ChangingChar"
	
	loadData(player)
	
	updateChar(player)
	EquippedCharacter.Changed:Connect(function()
		updateChar(player)
	end)
end

game.Players.PlayerAdded:Connect(onJoin)
game.Players.PlayerRemoving:Connect(saveData)

If you can help, please let me know. Thanks, WE

[blokav]

I would suggest that you read the documentation for DataStore2:

How to use DataStore2 - Data Store caching and data loss prevention

DataStore2 Documentation | News | Source DataStore2 is an open source module that uses berezaa’s method of saving data that prevents data loss, caches, and verifies data before saving. DataStore2 has been used in my game visited by 120 million players with a constant concurrent player count of around 3,000 - 8,000 players, one time reaching 12,000 concurrent players. @AlreadyPro’s latest game Fairy World has 3 million visits and a consistent concurrent player count above 1,000, and a peak of 5…

DataStore2 isn’t a separate thing from Roblox datastores. It’s a user-made module that still uses the DataStoreService but has functionality to try to make saving things easier and prevent loss of data.