Why is my purchase system not working?

Help and Feedback Scripting Support
1

The goal of this is to determine what product the person buys, and how many seconds it corresponds to in the table. Currently, it prints nil at this part:

print(PaymentTable[receiptInfo.ProductId])

I’ve tried to debug it with various methods, and just can’t find the problem.

local PaymentTable = {
    ['1167769246'] = 1,
    ['1167769541'] = 55,
    ['1167769540'] = 10,
    ['1167769537'] = 30,
    ['1167769536'] = 60,
    ['1167769535'] = 300,
    ['1167769533'] = 600,
}

local MarketplaceService = game:GetService("MarketplaceService")

function processReceipt(receiptInfo)
    local player = game:GetService("Players"):GetPlayerByUserId(receiptInfo.PlayerId)
    if not player then
        return Enum.ProductPurchaseDecision.NotProcessedYet
    end
    -- script below controls what happens if bought 
    print(player.Name .. " just bought " .. receiptInfo.ProductId)
    --// do stuff

    --print(player.Name .. ' just bought ' .. PaymentTable[receiptInfo.ProductId])
    print(PaymentTable[receiptInfo.ProductId])

    return Enum.ProductPurchaseDecision.PurchaseGranted
end


MarketplaceService.ProcessReceipt = processReceipt
2

Try setting receiptInfo.ProductId into a string using tostring(). For example,

local player = game:GetService("Players"):GetPlayerByUserId(receiptInfo.PlayerId)
    local key = tostring(receiptInfo.ProductId)
    if not player then
        return Enum.ProductPurchaseDecision.NotProcessedYet
    end
    -- script below controls what happens if bought 
    print(player.Name .. " just bought " .. key)
    --// do stuff

    --print(player.Name .. ' just bought ' .. PaymentTable[receiptInfo.ProductId])
    print(PaymentTable[key])

    return Enum.ProductPurchaseDecision.PurchaseGranted

My guess is that since ProductId is a number, it is looking for the value in that position instead of accessing the actual key.

1 Like