No longer compatible with Slack
This uses the Slack RTM API which requires creating a Classic Slack APP. Creating Classic apps is no longer supported. Which means the RTM API is no longer supported. Which means that this Node Red module no longer works and would need to be migrated to Bolt for it to work. I'd suggest putting a notice on the github README that it no longer works to save others some time, and perhaps withdraw it from the Node Red repo. Thanks.
When trying to use a modern Slack app auth token the error is: [INFO] @slack/client:RTMClient:11 unable to RTM start: An API error occurred: not_allowed_token_type
When trying to create a classic token, Slack responds with:
New creation of classic Slack apps has been discontinued Creation of Slack classic apps has been discontinued since June 4, 2024. Learn how this may impact you and your team.