DEV3 Technologies · own product
Our own Shopify app: it syncs stock and prices from supplier feeds over SFTP, FTP, URLs or APIs, applies margin formulas and FX, and holds any suspicious run for approval after deterministic guards and an AI review.
Client systems are private — screenshots shown where permitted.
A supplier sync held for review: nothing has been written to the store, with run summary and the anomaly guard that tripped on a 38% price-drop share.
Merchants who resell or drop-ship get stock and cost data from suppliers as CSV, XML or JSON files on FTP servers, SFTP drops, URLs or APIs, each in its own layout, encoding and currency. Keeping Shopify in step by hand is slow, and automating it is risky: one truncated file, a decimal comma read the wrong way or an export from the wrong warehouse can zero out a catalog or cut prices by 80% overnight. We wanted an app that reads any of these feeds, applies the merchant's margin rules, and refuses to write a change set that looks wrong until a person has looked at it.
AI Inventory & Supplier Price Sync is an embedded Shopify app on React Router 7 with a Postgres database through Prisma and a BullMQ worker that runs scheduled and manual syncs. Each run goes fetch, parse, map, match, compute, anomaly check and apply. Everything before the anomaly check is read-only: it produces a list of planned before-and-after changes, and only an approved list is written to Shopify.
basic-ftp, SFTP with a password or PEM key via ssh2-sftp-client, and paginated REST APIs. File patterns pick the newest matching file. Credentials are encrypted with AES-256-GCM, and private network addresses are blocked in production.(cost * 1.4) + 2 run through a tokenizer and parser in a shared core used across DEV3's apps, with no eval. Rules are scoped by supplier, collection, tag, vendor or product type and add .99/.95 rounding, minimum margin, MAP and never-below-cost floors, plus a per-run cap on price decreases.HELD, writes nothing, emails the merchant and pauses that supplier's schedule. Approval applies exactly the stored plan.inventorySetQuantities with changeFromQuantity and deterministic @idempotent keys, in batches of 250. A stale-quantity error triggers a live re-read and one retry. Prices go through productVariantsBulkUpdate per product with partial updates allowed.The admin UI covers a five-step supplier wizard with a sample preview, price rules with a test calculator, sync history with before-and-after changes and CSV export, and settings for buffers and thresholds. A variant index, refreshed with bulk operations and product webhooks, matches feed rows by SKU or barcode. Shared DEV3 packages provide the Shopify GraphQL client with throttling retries, the AI client, billing and the job queue. Shop data is deleted on shop/redact, and the app stores no customer data.
The app is in final QA before submission to the Shopify App Store; real-store testing is the next step. What has been built and verified so far:
changeFromQuantity and idempotency keys, so a retried job never applies a batch twiceDEV3 Technologies · own product · E-commerce (Shopify)
Our own Shopify app: it audits a whole catalog, writes titles, descriptions, meta tags and vision-based alt text in bulk, and changes nothing until the merchant approves. Every applied change can be rolled back for 30 days.
DEV3 Technologies · own product · E-commerce (Shopify)
Our own Shopify app: a fast slide-out cart that suggests AI-ranked add-ons from the store's catalog and advertises bundle offers using the same rule engine that Shopify's checkout runs to apply them.
DEV3 Technologies · own product · E-commerce (Shopify)
Our own Shopify app: a storefront chat that shows order status only to the verified owner, answers from the store's own policies with cited sources, says "I don't know" rather than guessing, and hands complex cases to the merchant's helpdesk.
