Sync Amazon Luna Prime games to Google Sheets with automatic updates

Description

Quick overview
Automatically fetch Amazon Luna games included with Prime, detect newly added titles, synchronize the catalog with Google Sheets, and optionally send Discord notifications when new games become available.

How it works
Scheduled refresh — The workflow runs every five days at 3:00 PM by default; the schedule can be changed in n8n.
Amazon Luna fetch — An HTTP Request calls the Luna backend with configurable locale and marketplace headers to retrieve the current Included with Prime catalog.
Game parsing — JavaScript extracts structured metadata including ASIN, title, release year, publishers, genres, product URL, images, and age rating.
New-game detection — Retrieved titles are compared with Google Sheets records, primarily by ASIN and with title as a fallback.
Google Sheets sync — Games are appended or updated in the selected sheet to keep the catalog synchronized without duplicate records.
Discord notification — Newly detected games can be filtered, batched, and sent to Discord with game details and artwork.

Setup
Import the workflow — Import workflow.json into n8n.
Configure Amazon headers — Update the Edit Fields node with the locale, marketplace ID, Origin, Referer, Accept-Language, and User-Agent for your target Amazon region.
Connect Google Sheets — Configure credentials, document, and sheet for reading the existing catalog and writing synchronized records.
Configure Discord — Connect Discord OAuth2 and select the target server and channel, or remove/replace this branch if notifications are not required.
Review the schedule — Keep the default five-day interval or choose your preferred refresh frequency.
Activate the workflow — Run a manual test, verify rows and notifications, then activate it.

Requirements
n8n instance
Google Sheets account and credentials
Google Sheet used as the game catalog
Network access to the Amazon Luna endpoint
Discord account and n8n Discord OAuth2 credentials (optional)
Alternative notification service such as Telegram, Slack, email, or webhook (optional)
Additional branches for multiple Amazon marketplaces (optional)

Customization
Region — Change locale, marketplace ID, Origin, Referer, and language headers for another supported marketplace.
Schedule — Adjust how often the Luna catalog is refreshed.
Stored metadata — Extend or reduce fields extracted by the Code node and mapped to Google Sheets.
Notifications — Replace Discord with another n8n-supported messaging, email, or webhook integration.
Multi-region tracking — Duplicate the fetch, parsing, synchronization, and notification logic for separate regional catalogs.

Additional info
Amazon may change Luna endpoints or request requirements; review the request configuration if fetching stops working.
Amazon data remains subject to Amazon's applicable terms and policies.