Better way to update user metada?

Local Setup
2

You can omit all parameters you want to leave unchanged. As the documentation for account update says you can use nil or just leave the fields out.

local nk = require("nakama")

local user_id = "4ec4f126-3f9d-11e7-84ef-b7c182b36521" -- some user's id.
local metadata = {}

local status, err = pcall(nk.account_update_id, user_id, metadata)
if (not status) then
  nk.logger_info(("Account update error: %q"):format(err))
end

That should work and do exactly what you want. Yes, storing ELO in metadata is a good idea.

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