BuyCoinsScript

local MarketplaceService = game:GetService("MarketplaceService")
local DataStoreService = game:GetService("DataStoreService")
--local currencyName = "Coins"

local PreviousPurchases = DataStoreService:GetDataStore("PreviousPurchases")

local Coinsbutton1 = 1160428657 -- 150
local Coinsbutton2 = 1160428799 -- 390
local Coinsbutton3 = 1160428919 -- 1000
local Coinsbutton4 = 1160428982 -- 2600
local Coinsbutton5 = 1160429022 -- 6700
local Coinsbutton6 = 1160429074 -- 18000
local Coinsbutton7 = 1160429137 -- 46000

MarketplaceService.ProcessReceipt = function(receiptInfo)

    -- Receipt has PurchaseId, PlayerId, Product Id, CurrencySpentValue, CurrencyType, PlaceIdWherePurchased

    local ID = receiptInfo.PlayerId.."-"..receiptInfo.PurchaseId

    local success = nil

    pcall(function()
        success = PreviousPurchases:GetAsync(ID)
    end)

    if success then -- Has it already been bought ?
        -- Purchase has already been done
        return Enum.ProductPurchaseDecision.PurchaseGranted
    end

    local player = game.Players:GetPlayerByUserId(receiptInfo.PlayerId)
    --local Coins = player.leaderstats.Coins.Value
    if not player then
        -- Left, disconnected
        return Enum.ProductPurchaseDecision.NotProcessedYet -- We re going to give their reward next time they join / next time fired

        else

        if receiptInfo.ProductId == Coinsbutton1 then
            -- They ve bought 150 Coins
            local player = game.Players:GetPlayerByUserId(receiptInfo.PlayerId)
            player.leaderstats.Coins.Value = player.leaderstats.Coins.Value + 150
            return Enum.ProductPurchaseDecision.PurchaseGranted
        end

        if receiptInfo.ProductId == Coinsbutton2 then
            -- They ve bought 390 Coins
            local player = game.Players:GetPlayerByUserId(receiptInfo.PlayerId)
            player.leaderstats.Coins.Value = player.leaderstats.Coins.Value + 390
            return Enum.ProductPurchaseDecision.PurchaseGranted
        end

        if receiptInfo.ProductId == Coinsbutton3 then
            -- They ve bought 1000 Coins
            local player = game.Players:GetPlayerByUserId(receiptInfo.PlayerId)
            player.leaderstats.Coins.Value = player.leaderstats.Coins.Value + 1000
            return Enum.ProductPurchaseDecision.PurchaseGranted
        end

        if receiptInfo.ProductId == Coinsbutton4 then
            -- They ve bought 2600 Coins
            local player = game.Players:GetPlayerByUserId(receiptInfo.PlayerId)
            player.leaderstats.Coins.Value = player.leaderstats.Coins.Value + 2600
            return Enum.ProductPurchaseDecision.PurchaseGranted
        end

        if receiptInfo.ProductId == Coinsbutton5 then
            -- They ve bought 6700 Coins
            local player = game.Players:GetPlayerByUserId(receiptInfo.PlayerId)
            player.leaderstats.Coins.Value = player.leaderstats.Coins.Value + 6700
            return Enum.ProductPurchaseDecision.PurchaseGranted
        end

        if receiptInfo.ProductId == Coinsbutton6 then
            -- They ve bought 18000 Coins
            local player = game.Players:GetPlayerByUserId(receiptInfo.PlayerId)
            player.leaderstats.Coins.Value = player.leaderstats.Coins.Value + 18000
            return Enum.ProductPurchaseDecision.PurchaseGranted
        end

        if receiptInfo.ProductId == Coinsbutton7 then
            -- They ve bought 46000 Coins
            local player = game.Players:GetPlayerByUserId(receiptInfo.PlayerId)
            player.leaderstats.Coins.Value = player.leaderstats.Coins.Value + 46000
            return Enum.ProductPurchaseDecision.PurchaseGranted
        end

        pcall(function()
            PreviousPurchases:SetAsync(ID,true)
        end)
        --return Enum.ProductPurchaseDecision.PurchaseGranted
    end
end