SprintFood Ordering System

Overview

The SprintFood Ordering System is a WhatsApp-based conversational commerce platform developed to simplify the ordering process for SprintFood products — a popular Indonesian layered cake brand.

Customers can browse menus, place orders, and complete payments directly through a WhatsApp chat flow, creating a seamless shopping experience without the need to visit a website or download an app.

Scope & Features

The system focuses on automating product ordering, payment validation, and delivery coordination through a single conversational interface.

Key features include:

• WhatsApp Ordering Flow: Enables customers to view product menus, check availability, and place orders via chat.
• Automated Order Processing: Handles order creation, stock validation, and payment confirmation in real-time.
• Payment Integration: Connected to Midtrans API for instant and secure transaction validation.
• E-Receipt Generation: Automatically sends digital receipts and order summaries via WhatsApp.
• Admin Dashboard: Backend management for order tracking, stock updates, and transaction history.
• Notification System: Real-time updates on order status using WhatsApp templates and push notifications.

Technology Stack & Architecture

The platform is built with a Go (Golang) backend to ensure high concurrency and reliability, integrated with the WhatsApp Cloud API for real-time conversational flow.

• Backend: Go (Golang) using the Echo Framework, designed with a modular, event-driven architecture.
• Messaging Layer: WhatsApp Cloud API integrated via webhook handlers in Go for real-time message processing.
• Database: PostgreSQL for managing product data, order records, and transactions.
• Payment Gateway: Midtrans API for payment handling and transaction verification.
• Infrastructure: Dockerized services with CI/CD pipelines deployed via GitHub Actions.
• Notifications: WhatsApp messages and OneSignal integration for order confirmations and updates.
• Monitoring: Centralized logging and error tracking for system health visibility.

Role & Responsibilities

As the Technical Lead, I was responsible for defining the system architecture and managing all technical decisions during the development process.

Key responsibilities included:

• Designing the overall backend and message flow structure.
• Implementing the WhatsApp conversational logic and message orchestration in Go.
• Integrating the payment gateway and ensuring transaction reliability.
• Overseeing containerization, CI/CD pipeline, and deployment strategies.
• Managing system performance, monitoring, and error handling in production environments.

Impact & Results

The SprintFood Ordering System transformed the traditional ordering process into a fully automated digital experience:

• Reduced manual order handling by over 80% through WhatsApp automation.
• Shortened order-to-payment cycle to under 2 minutes.
• Improved customer satisfaction by enabling 24/7 automated ordering.
• Increased daily order capacity by more than 2× without additional staff.

Confidentiality Note

This section highlights selected features and architecture of the SprintFood Ordering System.

Due to confidentiality and proprietary business workflows, detailed flow logic and API configurations are not publicly shared.