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Slack_App_Power_Rankings

Adds an Elo rating system to your Slack server.

This was built as a fun little project, during a time when our whole office was getting really into ping pong. I wrote this to allow for a more competitive scene with stat tracking, and it was cool to watch people rise and fall through the rankings. This was also a fun dive into the Elo rating system.

We used it for ping pong, but it could just as easily be used for any other 1v1 game.

Setup

Copy this script as a new GScript for Slack to connect to.

Create a Google Spreadsheet for the script to access. This is where the rankings will be stored.

Edit the following fields in the script to match your server:

  • incomingURL: Incoming URL from Slack app setup
  • hookToken: Token from Slack app setup
  • slackCommand: Name used to execute script. For example if the name is "pingpong", it would be used via "/pingpong top"
  • slackChannel: Name of the channel to push updates to. This includes Elo changes, adding, and removing players.
  • adminUser: User with admin access. I just set this as myself for ease of cleanup/debugging, but this could be expanded to include a list of names with little effort.
  • spreadsheetID: Google Spreadsheet ID to save rankings. This can be found in the URL of the spreadsheet.
  • scoreboardTitle: Title of the scoreboard

I'm sure I could turn this into a proper Slack app without the need for this manual setup, but I was unsure how to approach the leaderboard storage in such a case.

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Adds an Elo rating system to your Slack server.

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