Multiple attachments to a single Slack message

Describe the issue/error/question

I need to grab a few images from known URLs and post them as attachments to a single Slack message. I’ve gotten the fetching part but I can’t quite figure out how to post multiple attachments to a single Slack message. Anyone figured this out?

Please share the workflow

Share the output returned by the last node

Attachments it is not a valid json

Information on your n8n setup

  • n8n version: 0.214.0
  • Database you’re using (default: SQLite): postgres
  • Running n8n with the execution process [own(default), main]: own
  • Running n8n via [Docker, npm,, desktop app]: kubernetes (n8n dockerhub image on k3s on Rocky Linux)

Hey @brianfclemens,

Welcome to the community :tada:

I have just taken a quick look and I can’t see way to do it with the Slack node so it might need an HTTP Request node and a bit of time with the Slack API to make it work.

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