# \#leaderboard

**URL:** https://community.forestadmin.com/tag/leaderboard/16.md

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## [SmartChart: ActionController::InvalidAuthenticityToken (ActionController::InvalidAuthenticityToken):](https://community.forestadmin.com/t/smartchart-actioncontroller-invalidauthenticitytoken-actioncontroller-invalidauthenticitytoken/5264)

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**Author:** [@nico\_lrx](https://community.forestadmin.com/u/nico_lrx)\
**Replies:** 7\
**Last updated:** [September 21, 2022, 2:23pm UTC](https://community.forestadmin.com/t/smartchart-actioncontroller-invalidauthenticitytoken-actioncontroller-invalidauthenticitytoken/5264 "2022-09-21T14:23:53Z")

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Feature(s) impacted Smart Charts through API : I created a “leaderboard” chart using the API option to display some data. Here is my controller: class Forest::ChartsController \< ForestLiana::ApplicationController …