Invalid argument #1 to 'ipairs' Table expected, got nil

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#1

I took some example code from another topic on how you can get game passes, etc from a player using RoProxy however when I change the AssetTypeId to 5 this error happens.

(5 means a Lua Asset)

Credits to @Forummer for the code.

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Capture926×30 3.87 KB

[Redacted site since it is a phishing URL for some reason]

Error that happens:

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Capture1082×77 10.3 KB

Line that errored:
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local http = game:GetService("HttpService")

local baseUrl = "https://www.roproxy.com/users/inventory/list-json?assetTypeId=5&cursor=&itemsPerPage=100&pageNumber=%s&userId=%s"

local function getUserCreatedGamepassesRecursive(userId, gamepasses, pageNumber, lastLength)
	gamepasses = gamepasses or {}
	pageNumber = pageNumber or 1
	lastLength = lastLength or math.huge

	local requestUrl = baseUrl:format(pageNumber, userId)
	local success, result = pcall(function()
		return http:GetAsync(requestUrl)
	end)

	if success then
		if result then
			local success2, result2 = pcall(function()
				return http:JSONDecode(result)
			end)

			if success2 then
				if result2 then
					for _, gamepass in ipairs(result2.Data.Items) do
						if gamepass.Creator.Id == userId then
							table.insert(gamepasses, gamepass.Item.AssetId)
						end
					end

					if result:len() ~= lastLength then
						lastLength = result:len()
						pageNumber += 1
						getUserCreatedGamepassesRecursive(userId, gamepasses, pageNumber, lastLength)
					end
				end
			else
				warn(result)
				getUserCreatedGamepassesRecursive(userId, gamepasses, pageNumber, lastLength)
			end
		end
	else
		warn(result)
		getUserCreatedGamepassesRecursive(userId, gamepasses, pageNumber, lastLength)
	end
	return gamepasses
end

local userGamepasses = getUserCreatedGamepassesRecursive(2032622)
print(#userGamepasses) --6 gamepasses.
for _, gamepassId in ipairs(userGamepasses) do
	print(gamepassId) --6 gamepass IDs.
end

How can I fix the line, so it doesn’t error?

#2

As stated in the error message, “(table expected, got nil),” implying that index “Items” has no value.

#3

How would I fix the line though?

#4

It’s quite simple. Just use an if statement:

if result2.Data.Items then
	...
end
#5

Surely fixed the error but another problem is Lua Assets return ‘0’ even though I have Lua Assets in my inventory. (I’m testing it with CreatorId)

#6

Did some further debugging the for loop doesn’t even run??

Did a print below the if statement and it didn’t run the print.

#7

It will only execute the process if the condition is true.

#8

The condition probably isn’t true causing it to not execute.

1 Like
#9

If the condition is not true, then the issue is coming from your URL.

I tried using your URL with page number 1 and my user ID. The result was asset type does not exist.

{"IsValid":false,"Data":"AssetType does not exist."}
#10

How would I fix that issue coming from the URL?

#11

Anything below 8 will cause the error I found out; how can I prevent this?

1 Like