Can anyone please go over this to see if this is coded correctly?

local MarketplaceService = game:GetService("MarketplaceService")
local ID = 00000
local PurchaseHistory = game:GetService("DataStoreService"):GetDataStore("PurchaseHistory")
local Currency = Points
local Amount = 100


MarketplaceService.ProcessReceipt = function(receiptInfo) 
    for i, player in ipairs(game.Players:GetChildren()) do
        if player.userId == receiptInfo.PlayerId then
            if  receiptInfo.ProductId == ID then
                player.leaderstats.Currency.Value = player.leaderstats.Currency.Value + Amount
            end
        end	
    end
    local playerProductKey = "player_" .. receiptInfo.PlayerId .. "_purchase_" .. receiptInfo.PurchaseId
    PurchaseHistory:IncrementAsync(playerProductKey, 1)	
    return Enum.ProductPurchaseDecision.PurchaseGranted		
end
Anonymous