What is this?

It's a webhook application that notifies you when a Slack custom emoji is registered. This application runs as a webapp in the Google apps scripts. If you register as an endpoint for Slack API Event Subscriptions, you will be notified of the emoji registered in the Slack channel.

REQUIREMENTS

• clasp
• npm
• make

USAGE

To use it, you need to set up Google apps scripts and Slack API.

Install Google apps scripts

1. Enable Google Apps Script API
   https://script.google.com/home/usersettings
2. make push
3. make deploy
4. Grant the necessary privileges
   make open
   Publish > Deploy as web app.. > Update
   Grant access

Register with the Slack API

1. Create New App
   https://api.slack.com/apps
2. Setting Event Subscriptions
   Turn on.
   Setting Request URL.
   ex) https://script.google.com/macros/s/miserarenaiyo/exec
   Add Workspace Event.
   Select emoji_changed.
3. Activate Incoming Webhooks
   Turn on.
   Add New Webhook to Workspace.
   Select the channel to notify.

Setting Script properties

In order to run the application and change its behavior, you need to set the following Google Apps scripts property.

Property name	Required	Setting Value	Description
VERIFICATION_TOKEN	○	Basic Information > App Credentials > Verification Token	A token that easily authenticates the source of a hooked request
INCOMING_WEBHOOKS_URL	○	Incoming Webhooks > Webhook URL	Incoming Webhooks URL Activated During Slack API Registration
NOTIFICATION_MESSAGE	optional	Free text message	default A new emoji is added

1. Open Project
   $ make open
2. Add Scirpt properties
   File > Project properties > Scirpt properties > Add row
   Setting Property & Value