Vedansh Kumar
Developer | Solution Architect | Generative AI
A duplicate webhook should not change inventory twice.
Commerce Sync is my multi-store Shopify integration example. Product changes move between storefronts, and inventory updates make their way back to the parent store.
The part I care about is what happens when something fails....
I turned the booking flow into a little clockwork world.
The hourglass is the temporary hold on a consultation slot. The calendar lock is the database constraint that decides whether the booking can be confirmed. And the UTC tower is there because the shop's 9 AM has to mean the...
I made a little checkout world for Flash Upsell.
The shopper sees an offer card. Behind it, the app has to pick the right offer, apply a discount to the right line and record what was actually accepted.
In the project, the checkout extension handles the offer and a Shopify...
A checkout offer has a lot more going on than the little card a shopper sees.
I built Flash Upsell as a multi-store Shopify app. The admin lets a merchant define offers, a checkout extension shows the matching one, and a Shopify Function applies the discount to that upsell line.
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portfolio-ichigo.vercel.app
Flash Upsell — Multi-Tenant Shopify App | Vedansh Kumar
A multi-tenant Shopify app that shows targeted in-checkout upsells, applies a real WASM-backed discount, and tracks the revenue each offer actually earns.
What happens when two people buy the same consultation slot?
That is the part of a Shopify booking app I like working through. A calendar can look fine while two checkouts are both holding the same time.
In my booking design, choosing a slot creates a 10-minute hold. Confirmation...
portfolio-ichigo.vercel.app
Shopify Consultation Booking Platform | Vedansh Kumar
An embedded Shopify app for booking expert consultations — timezone-correct slot engine, calendar + video sync, idempotent order webhooks, and TTL holds that make double-booking impossible.
