Create Daily 4K Wallpapers from NASA's APOD with Google Drive & Slack Alerts

What it does This workflow automatically downloads NASA's Astronomy Picture of the Day (APOD) every day. It then resizes the image to a 4K resolution (3840x2160), making it perfect for a desktop wallpaper, and uploads it to a specified Google Drive folder.

If the APOD for the day is a video or another media type instead of an image, the workflow will skip the download process and send an alert to a designated Slack channel, informing you of the media type and title.

Who's it for This template is ideal for: Space and astronomy enthusiasts who want a new stunning wallpaper every day. Anyone looking to automate file downloading and cloud storage management. n8n users who want to learn how to integrate APIs, schedule triggers, process images, and use conditional logic.

How to set up Setup should take about 5-10 minutes.

Configure Credentials: NASA: Get a free API key from NASA APIs and add your credentials in the Fetch APOD data node. Google Drive: Authenticate your Google account in the Upload to Google Drive node. Slack: Authenticate your Slack workspace in the Send Slack alert node. Set Workflow Variables: In the ⚙️ Configuration node, replace the placeholder values for DRIVE_FOLDER_ID and SLACK_CHANNEL_ID with your actual Google Drive folder ID and Slack channel ID. You can find the folder ID in the URL of your Google Drive folder. Activate the Workflow: Toggle the "Active" switch to ON in the top-right corner. The workflow will now run once every day.

How to customize Change Image Size**: You can adjust the output resolution in the Resize image to 4K node. Use a different Cloud Storage**: Replace the Upload to Google Drive node with another cloud storage node like Dropbox or OneDrive. Adjust the Schedule**: Modify the Daily Trigger node to run more or less frequently.