LomiMart
Modern marketplace ecosystem. A full-stack marketplace platform — buyer/seller mobile apps, admin dashboard, real-time chat, and an Express + MongoDB API.
What we built for LomiMart Inc..
LomiMart is a complete commerce ecosystem. Buyers shop in a React Native app, sellers manage inventory and chat with buyers in real time, and admins moderate the platform from a Next.js dashboard. The API handles auth, listings, image watermarking, and payments — all built type-safe end to end.
The problem
The client needed to launch a marketplace fast, with a unified experience across web and mobile, an admin tool for moderation, and real-time buyer-seller messaging — without the maintenance cost of three disparate codebases.
Our solution
We shipped a single typed monorepo: Express + MongoDB backend, Next.js admin & buyer web, and React Native consumer app. Shared schema and API client mean a feature lands in one place and propagates everywhere.
What ships with LomiMart.
Every feature is engineered to be observable, type-safe, and measurable in production.
Real-time chat
Socket.IO powers buyer-seller conversations with typing indicators, read receipts, and image attachments.
Image pipeline
Cloudinary uploads with on-the-fly watermarking protect seller listings without slowing the upload UX.
Admin moderation
Bulk actions, soft-delete, fraud flags, and analytics dashboards let a small team supervise thousands of listings.
JWT + role auth
Customer, seller, and admin roles share a single token system. Rate limiting and helmet protect every endpoint.
Swagger docs
Every endpoint ships with brand-themed API docs so partners can integrate without hand-holding.
Mobile-first checkout
Cart, wishlist, and order tracking optimized for low-bandwidth mobile users with offline-tolerant state.
Tech stack
The exact tools we picked — every choice justified, no cargo-culting.
- Next.js 14
- React Native
- Express
- TypeScript
- MongoDB
- Socket.IO
- Redux Toolkit
- TailwindCSS
- Cloudinary
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