Monitor RSS Feeds, Extract Full Articles, and Save to Supabase

Overview

This workflow solves a common problem with RSS feeds: they often only provide a short summary or snippet of the full article. This template automatically monitors a list of your favorite blog RSS feeds, filters for new content, visits the article page to extract the entire blog post, and then saves the structured data into a Supabase database.

It's designed for content creators, marketers, researchers, and anyone who needs to build a personal knowledge base, conduct competitive analysis, or power a content aggregation system without manual copy-pasting.

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Use Cases

• Content Curation: Automatically gather full-text articles for a newsletter or social media content.
• Personal Knowledge Base: Create a searchable archive of articles from experts in your field.
• Competitive Analysis: Track what competitors are publishing without visiting their blogs every day.
• AI Model Training: Collect a clean, structured dataset of full-text articles to fine-tune an AI model.

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How It Works

1. Scheduled Trigger: The workflow runs automatically on a set schedule (default is once per day).
2. Fetch RSS Feeds: It takes a list of RSS feed URLs you provide in the "blogs to track" node.
3. Filter for New Posts: It checks the publication date of each article and only continues if the article is newer than a specified age (e.g., published within the last 60 days).
4. Extract Full Content: For each new article, the workflow uses the Jina AI Reader URL (https://r.jina.ai/) to scrape the full, clean text from the blog post's webpage. This is a free and powerful way to get past the RSS snippet limit.
5. Save to Supabase: Finally, it organizes the extracted data and saves it to your chosen Supabase table. The following data is saved by default:
   • title
   • source_url (the link to the original article)
   • content_snippet (the full extracted article text)
   • published_date
   • creator (the author)
   • status (a static value you can set, e.g., "new")
   • content_type (a static value you can set, e.g., "blog")

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Setup Instructions

You can get this template running in about 10-15 minutes.

1. Set Up Your RSS Feed List:

   • Navigate to the "blogs to track" Set node.
   • In the source_identifier field, replace the example URLs with the RSS feed URLs for the blogs you want to monitor. You can add as many as you like.
   • Tip: The best way to find a site's RSS feed is to use a tool like Perplexity or a web-browsing enabled LLM.

   // Example list of RSS feeds
   ['https://blog.n8n.io/rss', 'https://zapier.com/blog/feeds/latest/']
   

2. Configure the Content Age Filter:

   • Go to the "max_content_age_days" Set node.
   • Change the value from the default 60 to your desired timeframe (e.g., 7 to only get articles from the last week).

3. Connect Your Storage Destination:

   • The template uses the "Save Blog Data to Database" Supabase node.
   • First, ensure you have a table in your Supabase project with columns to match the data (e.g., title, source_url, content_snippet, published_date, creator, etc.).
   • In the n8n node, create new credentials using your Supabase Project URL and Service Role Key.
   • Select your table from the list and map the data fields from the workflow to your table columns.
   • Want to use something else? You can easily replace the Supabase node with a Google Sheets, Airtable, or the built-in n8n Table node. Just drag the final connection to your new node and configure the field mapping.

4. Set Your Schedule:

   • Click on the first node, "Schedule Trigger".
   • Adjust the trigger interval to your needs. The default is every day at noon.

5. Activate Workflow:

   • Click the "Save" button, then toggle the workflow to Active. You're all set!