Hacker News Lookback: On This Day
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Analyzes Hacker News headlines for a specific day across multiple years to show tech evolution.
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About This Workflow
Overview
This workflow fetches Hacker News headlines for a given day across a range of years (starting from 2007 up to the current year). It then uses an LLM to analyze these headlines, identify key themes, and present a lookback at how the tech landscape has evolved on that particular day over the years. The output is formatted in Markdown and sent to a Telegram channel.
Key Features
- Dynamically generates a list of dates for a specific day across multiple years.
- Fetches Hacker News front-page headlines for each generated date.
- Leverages an LLM to categorize headlines by theme and identify tech trends.
- Formats the output as a Markdown-based historical summary.
- Sends the generated summary to a specified Telegram channel.
How To Use
- Configure Schedule Trigger: Set the
Schedule Triggerto run the workflow at your desired interval (e.g., daily at a specific hour). - Set Environment Variables: Ensure
BASE_URLis set in your n8n environment variables to the Hacker News API endpoint that provides headlines for a given date (e.g.,https://news.ycombinator.com/). - Configure HTTP Request: The
GetFrontPagenode's URL should point to the Hacker News API. Thedayquery parameter should be correctly mapped from thedatesToFetcharray. - Configure HTML Extraction: The
ExtractDetailsnode needs to be configured with the correct CSS selectors to extract headlines and dates from the Hacker News HTML response. - Configure LLM: Set up the
Basic LLM Chainnode with the appropriate prompt to guide the LLM in analyzing and formatting the headlines. Ensure the prompt includes the desired output format. - Configure Telegram: Authenticate the
Telegramnode with your Telegram bot credentials and set thechatIdto your target channel.
Apps Used
Workflow JSON
{
"id": "a5c1fe10-5fff-4a72-9179-0b3106bdceb7",
"name": "Hacker News Lookback: On This Day",
"nodes": 0,
"category": "Content Generation",
"status": "active",
"version": "1.0.0"
}Note: This is a sample preview. The full workflow JSON contains node configurations, credentials placeholders, and execution logic.
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