Extract Product Info from Webpage Screenshots using Dumpling AI and GPT-4o

Who is this for? This workflow is perfect for eCommerce teams, market researchers, and product analysts who want to track or extract product information from websites that restrict scraping tools. It’s also useful for virtual assistants handling product comparison tasks. What problem is this workflow solving? Many eCommerce and retail sites use dynamic content or anti-bot protections that make traditional scraping methods unreliable. This workflow bypasses those issues by taking a screenshot of the full page, using OCR to extract visible text, and summarizing product information with GPT-4o—all fully automated. What this workflow does This workflow monitors a Google Sheet for new URLs. Once

Help me set up the n8n workflow "Extract Product Info from Webpage Screenshots using Dumpling AI and GPT-4o" (https://n8n.io/workflows/4329). 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.