A slack message cleaner webservice hooked to Outgoing WebHooks
$ npm i -g slack-cleaner-serverYou need to add an Outgoing WebHooks app integration.
With or without Trigger Word, it's up to you.
For the URL, because slack-cleaner-server need a dev token to communicate with the Slack API, you need to pass it :
// e.g. If slack-cleaner-server is launched on yourDomain.com
http://yourDomain.com:5140/delete/<yourSecretApiToken>/
You can generate an API token here : https://api.slack.com/tokens
$ slack-cleaner-server