Turn LinkedIn post reactions into AI content ideas with OpenAI and Google Sheets

by Dr. Firas ✓ · 41 views · created 2026-07-14 · Content Creation, AI Summarization

What this workflow does

This AI workflow has 11 nodes and runs on a schedule (every day at 08:00). Along the way it connects OpenAI Chat Model and Google Sheets. It also calls linkedin-api8.p.rapidapi.com over HTTP.

How it runs

Trigger: On a schedule (every day at 08:00).

1. Configuration (Edit Fields (Set)): sets 6 fields: linkedin_username, reaction_filter, recency_days…
2. Fetch LinkedIn Reactions (HTTP Request): calls linkedin-api8.p.rapidapi.com
3. Split Reactions (Split Out): splits a list into separate items
4. Filter: keeps only the items that match a condition
5. Limit: keeps the first few items
6. AI Content Strategist (Basic LLM Chain): sends a prompt to an LLM, with model: OpenAI Chat Model; output parser: Content Idea Parser
7. Format Idea Row (Edit Fields (Set)): sets 12 fields: Captured At, Reaction, Author…
8. Save to Google Sheets (Google Sheets): append or update

Services it uses

OpenAI Chat ModelGoogle Sheets

HTTP calls to: linkedin-api8.p.rapidapi.com

Before you upgrade to n8n 3.0

Nodes used (10)

• Schedule Triggern8n-nodes-base.scheduleTrigger
• Edit Fields (Set)n8n-nodes-base.set
• HTTP Requestn8n-nodes-base.httpRequest
• Split Outn8n-nodes-base.splitOut
• Filtern8n-nodes-base.filter
• Limitn8n-nodes-base.limit
• Basic LLM Chain@n8n/n8n-nodes-langchain.chainLlm
• OpenAI Chat Model@n8n/n8n-nodes-langchain.lmChatOpenAi
• Structured Output Parser@n8n/n8n-nodes-langchain.outputParserStructured
• Google Sheetsn8n-nodes-base.googleSheets

From the author

Quick overview This workflow runs daily to fetch your recent LinkedIn post reactions via a RapidAPI LinkedIn endpoint, uses OpenAI to turn each reacted post into a structured original content idea, and appends or updates the results in a Google Sheets idea…

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