Auto-Generate Facebook Posts from Video Insights using Dumpling AI + GPT-4o

What this workflow does This workflow automatically turns new technical video uploads into short, engaging Facebook post drafts—complete with a suggested image—and saves the results to Google Sheets for quick review or publishing. It’s designed to help you repurpose tutorial or demo videos into ready-to-use social content without any manual writing or design effort. What problem is this workflow solving? Manually writing Facebook posts for every new tutorial or product video takes time, especially when you want them to be engaging and consistent. This workflow solves that by using AI to watch for new videos, extract meaningful insights, and write posts and create visuals automatically—saving

Help me set up the n8n workflow "Auto-Generate Facebook Posts from Video Insights using Dumpling AI + GPT-4o" (https://n8n.io/workflows/5168). It uses: Google Sheets, HTTP Request, Google Drive, OpenAI. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.