/emojify [text] [foreground] [background]

You need an API token to post emoji art back to Slack. Setup an incoming webhook and note the API token.

You need to respond to the /emojify command. Setup a new slash command with the following settings.

• Command: /emojify
• URL: https://<your heroku app>.herokuapp.com/
• Method: POST
• Check Show this command in the autocomplete list.
• Description: Emojify your text.
• Usage hint: [text] [foreground] [background]

Configure the Heroku application with heroku config add.

• SLACK_API_TOKEN: The token from the incoming webhook.
• USERNAME: Optional name of bot.
• ICON: Optional URL to an image to use as the icon for messages.