n8n: GitHub Trending to Slack Alerts (Scheduled Auto-Reports)

Get daily GitHub Trending winners—automatically posted to Slack

This n8n workflow scrapes GitHub Trending for multiple programming languages, ranks repositories by stars gained today, and sends a clean Slack alert with the top results—once every 24 hours. No manual monitoring required.

What this workflow does

• Runs on a schedule: executes every 24 hours using an interval-based schedule.
• Targets your languages and rules: uses configuration for a languages array, a minimum stars today threshold (minStars), a time range (since), and how many results to report (topN).
• Scrapes GitHub Trending pages: fetches the Trending HTML for each language and extracts the repository blocks.
• Parses and filters repositories: captures repository name, URL, language, stars gained today, and total stars; then excludes repos below minStars and skips archived projects.
• Ranks and aggregates results: sorts by stars gained today, keeps the top N per language, and combines everything into one list.
• Posts only when there’s something to report: if at least one qualifying repository is found, formats a Slack message with links and star counts and posts it to your chosen channel; otherwise exits without posting.

Use cases

• SaaS operators tracking momentum in developer ecosystems for product insights.
• Automation engineers monitoring trending projects across languages without leaving Slack.
• Teams researching competitors or community-driven tools, using daily GitHub Trending signals.

Technical details

• Integrations: Slack (API credential + channel selection) and GitHub (Trending page scraping).
• n8n nodes / logic used: if, set, html, no op, sort, limit.

Quick setup

• Add a Slack API credential and select the channel for the alert.
• Adjust languages, minStars, topN, and since.
• Optionally tweak the schedule interval if you want more or less frequent reports.