Problem with list leaderboard from lua runtime function

Game Design
1

Hello everyone, I’m using Nakama server v2.12.0, I need to create an rpc function that takes the lines of a leaderboard and sends a notification to all users on that leaderboard. The problem is that when I use the “nk.leaderboard_records_list(id, owners, limit)” function I always get an empty array. In the parameters I put the id of the leaderboard I want to consult, as owners I putan empty object (it’s optional) and as limit I put 100. The leaderboard id I put is correct, it is a leaderboard with many records. Can someone tell me what I’m wrong? Thanks.

2

@antoniocapizzi95 What does the specific code you use look like? There’s no known issue with that server function. Are you sure you iterate over the returned LTable correctly?

3

I’m using this code:

local records, owner_records, next_cursor, prev_cursor = nk.leaderboard_records_list(id, owners, limit)

As id I put the id of a leaderboard containing a lot of rows. After I return the length of “records” (is a table) and I obtain 0. This is strange, because if i try to get the same leaderboard from client (with Unity library), i get 100 rows (i set the limit to 100).

4

@antoniocapizzi95 Have you checked the contents of owner_records? If you’re filtering the request by owners that should contain the appropriate filtered results.

5

I am having this exact same issue. Here is the code I am using. It returns an empty table.

local id = "league1-tier-1"
local owners = {}
local limit = 100
local cursor = ""
local overrideExpiry = 3600
local records, ownerRecords, nextCursor, prevCursor = nk.leaderboard_records_list(id, owners, limit, cursor, overrideExpiry)
local resp = {records = records, ownerRecords = ownerRecords, nextCursor = nextCursor, prevCursor = prevCursor}

return nk.json_encode(resp)

UPDATE
The documentation seems to be wrong/out of date. You need to pass nil for the owners parameter. If you pass an empty table {} as stated in the official lua runtime example, you will get an empty result set.

6

@SirCez we’ll change the documentation to make it clearer clearer. cc @HeroicNathan.

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