Generate and post Instagram captions with Google Drive, GPT-4.1-mini, Gmail and Blotato

Social Media Post & Caption Generator (Google Drive → AI Caption → Approval → Auto-Post) Automatically turn your existing content library into approved, AI-written social media posts. This workflow selects a random file from Google Drive, generates an Instagram caption using AI, sends it to you for approval, and—once approved—uploads and publishes the post via Blotato. 🎥 Watch Step-By-Step Guide: https://youtu.be/9XU9ECcj9dg What this template does On a scheduled basis (default: 10:00 AM), this workflow: Searches a specified Google Drive folder for content files Randomly selects one file to avoid repetitive posting Uses AI to generate an Instagram-ready caption based on the file name Sends

Help me set up the n8n workflow "Generate and post Instagram captions with Google Drive, GPT-4.1-mini, Gmail and Blotato" (https://n8n.io/workflows/12755). It uses: Google Drive, Gmail, Code, OpenAI. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.