You can write your topic however you want, but you need to answer these questions:
-
What do you want to achieve? Keep it simple and clear!
I followed the tutorial in https://developer.roblox.com/en-us/articles/Developer-Products-In-Game-Purchases but it doesn’t work -
What is the issue? Include screenshots / videos if possible!
I made a developer product where if you buy it, it would kill everybody else. And if there are not enough players, it would return false, however, in both cases it would say “Purchase suceeded”. Also it would not kill anyone, but I’m pretty sure it’s just a coding error -
What solutions have you tried so far? Did you look for solutions on the Developer Hub?
I have tried putting return true and return false in the code but it still tells me purchase succeeded. When I try to print the player nothing appears (server and client)
workspace
localscript in purchasesgui
script in serverscriptservice
local MarketplaceService = game:GetService("MarketplaceService")
local DataStoreService = game:GetService("DataStoreService")
local Players = game:GetService("Players")
-- Data store for tracking purchases that were successfully processed
local purchaseHistoryStore = DataStoreService:GetDataStore("PurchaseHistory")
-- Table setup containing product IDs and functions for handling purchases
local productFunctions = {}
-- ProductId 123123 for a full heal
productFunctions[1305503315] = function(receipt, player)
local players = Players:GetChildren()
print(player)
if #Players >= 2 then
for i, v in ipairs(players) do
if v ~= player then
local character = v.Character
if character then
local human = character:FindFirstChild("Humanoid")
if human then
human.Health = 0
end
end
end
end
return true
else
return false
end
end
-- The core 'ProcessReceipt' callback function
local function processReceipt(receiptInfo)
-- Determine if the product was already granted by checking the data store
local playerProductKey = receiptInfo.PlayerId .. "_" .. receiptInfo.PurchaseId
local purchased = false
local success, errorMessage = pcall(function()
purchased = purchaseHistoryStore:GetAsync(playerProductKey)
end)
-- If purchase was recorded, the product was already granted
if success and purchased then
return Enum.ProductPurchaseDecision.PurchaseGranted
elseif not success then
error("Data store error:" .. errorMessage)
end
-- Find the player who made the purchase in the server
local player = Players:GetPlayerByUserId(receiptInfo.PlayerId)
if not player then
-- The player probably left the game
-- If they come back, the callback will be called again
return Enum.ProductPurchaseDecision.NotProcessedYet
end
-- Look up handler function from 'productFunctions' table above
local handler = productFunctions[receiptInfo.ProductId]
-- Call the handler function and catch any errors
local success, result = pcall(handler, receiptInfo, player)
if not success or not result then
warn("Error occurred while processing a product purchase")
print("\nProductId:", receiptInfo.ProductId)
print("\nPlayer:", player)
return Enum.ProductPurchaseDecision.NotProcessedYet
end
-- Record transaction in data store so it isn't granted again
local success, errorMessage = pcall(function()
purchaseHistoryStore:SetAsync(playerProductKey, true)
end)
if not success then
error("Cannot save purchase data: " .. errorMessage)
end
-- IMPORTANT: Tell Roblox that the game successfully handled the purchase
return Enum.ProductPurchaseDecision.PurchaseGranted
end
-- Set the callback; this can only be done once by one script on the server!
MarketplaceService.ProcessReceipt = processReceipt
