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Research-to-Social Post Generator with Perplexity AI and Facebook Graph API

by HoangSPUpdated: Last update 10 days agoSource: n8n.io

Getting Started

Who’s it for

Teams that want to turn a chat prompt into a researched, ready-to-post social update—optionally published to Facebook.

What it does / How it works

  • Chat Trigger receives the user prompt
  • Topic Agent optionally calls a research sub-workflow for fresh sources
  • Outputs are validated into a structured JSON
  • Post Writing Agent crafts a concise Vietnamese post
  • (Optional) Facebook Graph API publishes to your Page

How to set up

  1. Connect OpenAI & Facebook in Credentials (no API key inside nodes).
  2. In Tool: Call Perplexity Researcher , set your research workflowId.
  3. In Publish: Facebook Graph API , set your Page ID and edge.
  4. Adjust prompts/tone and the LANGUAGE in CONFIG.
  5. Test the flow with sample prompts in the chat.

Requirements

  • n8n (Cloud or self-hosted)
  • OpenAI API key (stored in Credentials)
  • Facebook Page publish permissions
  • (Optional) a research workflow for Perplexity

How to customize the workflow

  • Add moderation/review gates before publishing.
  • Duplicate the publish path for other platforms.
  • Store outputs in Sheets/Notion/DB for auditing.
  • Tune model choice & temperature for your brand voice.

Security

  • Avoid hardcoding secrets in HTTP or Code nodes.
  • Keep identifiers (Page IDs, workflowIds) configurable in CONFIG.