Can I vibe code ExportFeed?

Build a custom lightweight Product Feed Generator service in Node.js and TypeScript to export store product data for Google Shopping (XML) and Meta Ads (CSV).

1. DATA MODEL & PERSISTENCE
- Set up a PostgreSQL schema using Prisma ORM storing: Feeds (id, name, type ['google_xml', 'meta_csv'], file_path, cron_schedule, enabled), FeedMappings (id, feed_id, channel_field, store_attribute, default_value, transform_rule), and SyncLogs (id, feed_id, status, items_processed, error_message, timestamp).
- Store raw cached product snapshots (sku, title, description, price, stock, category, image_url, barcode, brand).

2. FEED BUILDER & STREAM PROCESSING
- Create a stream-based generator (using Node.js Transform streams) to format 50,000+ SKUs into Google Shopping compliant XML (g:id, g:title, g:description, g:link, g:image_link, g:price, g:availability, g:brand, g:gtin) without memory leaks.
- Implement Meta Commerce Manager CSV exporter following Meta's header standards.
- Expose generated files through secure static routes (e.g., /feeds/google-shopping-raw.xml?token=SECRET).

3. TRANSFORMATIONS & CRON SCHEDULER
- Use BullMQ with Redis to run scheduled feed regenerations (e.g., every 6 hours).
- Support basic mapping transformations: add fixed percentage markup to prices, strip HTML from descriptions, and force capitalisation.

4. ERROR HANDLING & MONITORING
- Validate items against Google Shopping schema prior to output. Skip invalid SKUs, write errors to SyncLogs, and push notifications to a Slack webhook if error rates exceed 5%.
- Sanitize unescaped XML special characters (&, <, >, ", ') using proper CDATA wrapping.

5. OUT OF SCOPE
- Bi-directional inventory sync with Amazon SP-API or Etsy API.
- Order management and tracking import back to the store backend.

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