A high-performance, mobile-first e-commerce web application featuring real-time domestic shipping calculations, secure electronic payments, dynamic discounting, and order tracking.
Belanja E-Commerce was developed for a regional physical retailer moving from informal chat-based sales channels to a self-service online store. The system automates inventory reservation, shipping estimation, payment reconciliation, and order tracking as order volume scales.
Retail staff had to manually check inventory, verify bank transfer receipts, query courier rates, record shipping details, and send tracking numbers. This caused delayed responses, overselling during promotions, postage errors, and cart abandonment.
We built a responsive SPA-like web application using Laravel, Livewire, and TailwindCSS. Checkout calculations are automated through courier APIs, payments are reconciled through signed webhooks, and cart selections stay synchronized across guest and authenticated sessions.
The checkout flow combines real-time shipping rate lookup, payment gateway integration, hybrid cart synchronization, and pessimistic inventory locking. This keeps order creation, stock reservation, and payment status updates consistent even when customers leave the browser before payment is completed.
Architected the relational database schema, models, custom enum castings, and migrations; engineered payment and courier API wrappers; implemented secure webhook signature validation; built Livewire storefront pages; and created tests for third-party payment flows and discount payloads.
The system moves order confirmation, payment checking, postage lookup, and stock reservation from manual staff work into automated workflows. Inventory locking reduces overselling risk, while webhook-based reconciliation keeps order status and stock updates resilient.
We can help turn manual chat-based selling into a structured checkout, payment, shipping, and order management workflow.
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