Send keyword-based Hacker News Slack alerts with Groq and Google Sheets
Ready for 3.0Ready for 3.0. This template uses no nodes that n8n 3.0 removes. No removed nodes, versions or helpers found. Static check, last run 2026-10-19.
What this workflow does
This workflow has 10 nodes and runs on a schedule (every 2 hours). Along the way it connects Google Sheets. It also calls api.groq.com over HTTP.
How it runs
Trigger: On a schedule (every 2 hours).
- Set Configuration Values (Edit Fields (Set)): sets 3 fields: keywords, slack_webhook_url, google_sheet_id
- Build HN Search Queries (Code): runs custom JavaScript code
- Read Seen URLs from Sheets (Google Sheets): read
- Fetch HN API Results (HTTP Request): calls an HTTP API (GET)
- Filter Unseen HN Posts (Code): runs custom JavaScript code
- Flatten HN API Hits (Code): runs custom JavaScript code
- Post to Groq API (HTTP Request): calls api.groq.com (POST)
- Send Alert via Slack (HTTP Request): calls an HTTP API (POST)
- Append Seen Post in Sheets (Google Sheets): append or update
Services it uses
HTTP calls to: api.groq.com
Before you upgrade to n8n 3.0
Nothing in this workflow is removed in n8n 3.0, so it should import and run after the upgrade.
Nodes used (5)
- Schedule Trigger
n8n-nodes-base.scheduleTrigger - Edit Fields (Set)
n8n-nodes-base.set - Code
n8n-nodes-base.code - HTTP Request
n8n-nodes-base.httpRequest - Google Sheets
n8n-nodes-base.googleSheets
From the author
Quick overview This workflow polls Hacker News search results every two hours for a list of keywords, filters out posts already logged in Google Sheets, generates a one-sentence explanation with Groq, and sends a Slack webhook alert for each new match. How it…