Research-to-Social Post Generator with Perplexity AI and Facebook Graph API
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HoangSP
Description
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
Connect OpenAI & Facebook in Credentials (no API key inside nodes).
In Tool: Call Perplexity Researcher, set your research workflowId.
In Publish: Facebook Graph API, set your Page ID and edge.
Adjust prompts/tone and the LANGUAGE in CONFIG.
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.
This workflow was created by HoangSP and shared publicly on the n8n community template library. n8nFind indexes it for discovery — the workflow remains the property of its original creator.