How can I use pcall to check if the getAsync worked or not but it can also be nil?

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1

So like I need to check if anything related to getting the data worked, but if the result is nil I want to use it to code further.

-- Variables
local xpRemote = game.ReplicatedStorage:WaitForChild("XPsystem remote")
local globalCooldown = 60
local dataBaseService = game:GetService("DataStoreService")
local XPdataBase = dataBaseService:GetDataStore("globally_XP")
local Players = game:GetService("Players")
local rewardningXP = nil
local XPRewardPerRank = {
	["Ranks"] = {
		[2] = 15;
		[3] = 25;
		[4] = 35;
		[5] = 50;
		[6] = 60;
		[7] = 70;
		[8] = 80;
		[10] = 80;
		[11] = 90;
		[12] = 100;
		[13] = 120;
		[251] = 130;
		[252] = 140;
		[253] = 150;
		[254] = 150;
		[255] = 150
	}
}

local maxRequiredToRankUp = {
	[2] = 3000;
	[3] = 6000;
	[4] = 12000;
	[5] = 24000;
	[6] = 35000;
	[7] = 50000;
	[8] = 100000;
}


-- Functions
function updateXPData(player)
	local rankIDingroup = player:GetRankInGroup(32532119)
	local XP = nil
	local maxReq = nil
	player.PlayerGui:WaitForChild("Xp").Main.Xppermin.Text = "XP-PM: " ..XPRewardPerRank["Ranks"][rankIDingroup]
	XP = XPdataBase:GetAsync(player.UserId .. "_XPDataStore")["XP"]
	if XP == nil then
		player:Kick("Something went wrong getting your XP, please contact our staff team!")
	end
	if maxRequiredToRankUp[rankIDingroup] == nil then
		player.PlayerGui.Xp.Main.Xphave.Text = XP .. " / MAX XP"
		player.PlayerGui.Xp.Main.Xpbarbackground.Have.Size = UDim2.new(1,0,1,0)
		player.PlayerGui.Xp.Main.percent = "100%"
	else
		player.PlayerGui.Xp.Main.Xphave.Text = XP .. " / " .. maxRequiredToRankUp[rankIDingroup] .. " XP"
		local mathy = (XP / maxRequiredToRankUp[rankIDingroup] * 100)
		player.PlayerGui.Xp.Main.percent.Text = math.ceil(mathy).. "%"
	end
end


-- Event Listeners
game.Players.PlayerAdded:Connect(function(player)
	player.CharacterAdded:Connect(function(character)
		updateXPData(player)
	end)
end)

I basically need to check if someone already has a value in their XP or not. But I also want to use pcall to not break the entire code when something went wrong?

2 
local success, result = pcall(function()
    XPdataBase:GetAsync(player.UserId .. "_XPDataStore")
end)
if not success then
  warn("An error occured:", result)
end

local XP = result["XP"]
if not XP then
    print("XP is nil")
end

I think this should work.