Storing a value into a local variable from a DataStore pcall function

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#1

Hello,
I’m trying to understand the pcall function on the use of DataStores. I’m aware that this is a protected call to ensure the functions in DataStoreService are successful. What I’m trying to understand is when you run a pcall function on DataStore, how would you store the value from GetAsync into a local variable, if the pcall function only returns a bool value if it was successful or failed?

I’m working on an Obby game with Points leaderboard, so when a Player is added into the game, it grabs the Player’s previous points from an OrderedDataStore, then stores their points value in their leaderstats, which I use to show the Player their current progression in-game. When the Player is removed, I just run a simple pcall function DataStore:SetAsync of their points value in leaderstats.

Is it okay to not run a pcall when I GetAsync? Or is there another way to do this?

Thanks in advance!

local DataStoreService = game:GetService("DataStoreService")
local DataStore = DataStoreService:GetOrderedDataStore("PointsStats")

local PREFIX = "Points"
local DEBUG_MODE = true

game.Players.PlayerAdded:Connect(function(Player)
	local Leaderstats = Instance.new("Folder", Player)
	Leaderstats.Name = "leaderstats"

	local Points = Instance.new("IntValue", Leaderstats)
	Points.Name = "Points"
	
	-- Check to see if Points exists in DataStore; if not, set initial value to 0
	local Data = DataStore:GetAsync(PREFIX..Player.UserId)
	if Data then
		Points.Value = Data
	else
		Points.Value = 0
	end
end)

game.Players.PlayerRemoving:Connect(function(Player)
	local success, errormsg = pcall(function()
		return DataStore:SetAsync(PREFIX..Player.UserId, Player.leaderstats.Points.Value)
	end)
	
	if success then
		print("[POINTSDATASTORE] Player's points written to PointsStats; Points Value: ", Player.leaderstats.Points.Value)
	else
		warn(errormsg)
	end
end)
#2

Try this:

local Data
local success, err = pcall(function()
    Data = DataStore:GetAsync(PREFIX..Player.UserId)
end)

if success then
    Points.Value = Data
else
    Points.Value = 0
    warn(err)
end
#3

Thank you so much! This is exactly what I was looking for.