This n8n workflow automates the process of downloading videos from YouTube and logging their download links into Google Sheets. The workflow is initiated when a user submits a form with a YouTube URL, triggering a sequence of actions that fetch available video and audio formats via a third-party API, validate the response, and then log the download links for future access.

**Step-by-step explanation:**

1. The workflow starts with a form submission (Form Trigger node), where users enter a YouTube video URL.

2. It then sends a POST request to the YouTube Video Downloader API provided by RapidAPI, including the video URL.

3. The API response is checked with an ‘If’ node to ensure successful retrieval.

4. If successful, the workflow appends the original URL along with various download links (MP4 in different resolutions and MP3) into a designated Google Sheet.

**Use case scenarios:**

– Creators or social media managers who want to quickly collect and organize multiple YouTube video download links.

– Automating content backup or archival processes.

– Building a library of video and audio resources for content repurposing.

This workflow offers flexibility, allowing additional features like email notifications or storage integration as needed.