GlazeFlow

An ordering platform for a UK sealed-unit glass manufacturer: configure a unit, see your trade price, pay online.

Customers configure a made-to-measure sealed glass unit to the millimetre, get flagged when building regulations require toughened glass, see their own trade price and pay online. Staff run orders from a Next.js admin panel.

Prices for Retail, Trade and Trade Plus customers are computed on the server from multipliers the staff can edit, so the app never decides what anything costs. Only the payment webhook can mark an order paid.

What I built

Flutter app for iOS, Android and the web (PWA), with guest checkout on web
28 TypeScript Cloud Functions, including server-side pricing across three tiers
Hosted Square checkout behind a provider-agnostic payment layer, with an idempotent webhook
A 50-mile delivery check using server-side geocoding
Order lifecycle with push notifications and order emails
A Next.js staff admin on Cloud Run, and 285 automated tests

Stack

Flutter
Riverpod
Firebase
TypeScript
Cloud Functions
Next.js
Square
Google Geocoding
FCM
Resend

Screens

GlazeFlow: glass orders, priced and paid online

Configuring a made-to-measure sealed unit

One unit priced for Retail, Trade and Trade Plus