# Incorrect description of parameter "metadata" for "match\_join\_attempt"
**URL:** https://forum.heroiclabs.com/t/incorrect-description-of-parameter-metadata-for-match-join-attempt/3040
**Category:** Documentation
**Tags:** server-framework, sdk-godot, lua
**Created:** [September 12, 2022, 10:00pm UTC](https://forum.heroiclabs.com/t/incorrect-description-of-parameter-metadata-for-match-join-attempt/3040 "2022-09-12T22:00:31Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@RogLeite](https://forum.heroiclabs.com/u/RogLeite)
#### Post date: [September 12, 2022, 10:00pm UTC](https://forum.heroiclabs.com/t/incorrect-description-of-parameter-metadata-for-match-join-attempt/3040/1 "2022-09-12T22:00:31Z")
Description for [`match_join_attempt`](https://heroiclabs.com/docs/nakama/server-framework/lua-runtime/function-reference/match-handler/#match_join_attempt)’s `metadata` parameter mentions “Arbitrary key-value pairs”, implying the value can be of any type when building the metadata table in the client.
[This thread](https://forum.heroiclabs.com/t/match-join-attempts-metadata-parameter-is-emtpy/3036) details a real world error that arose from this description.
Suggested language to replace the current description: “Key-value pairs (both are `strings`) received from the client as part of the join request.”
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### Author:  [@gabriel](https://forum.heroiclabs.com/u/gabriel)
#### Post date: [September 13, 2022, 6:00am UTC](https://forum.heroiclabs.com/t/incorrect-description-of-parameter-metadata-for-match-join-attempt/3040/2 "2022-09-13T06:00:30Z")
Thanks @RogLeite , we’ll get that updated 👍