1. Project Background & Challenge
JuraganCOD is an e-commerce platform engineered to streamline cash-on-delivery (COD) order management, automated logistics tracking, and financial reconciliation for digital merchants. As part of an academic-industry collaboration at Universitas Negeri Semarang, our team was tasked with auditing, analyzing, and documenting the platform’s core backend systems.
The core challenge involved reverse-engineering a highly concurrent Go (Golang) codebase, unraveling complex micro-service/monolithic dependencies, and translating low-level backend operations into structured, accessible technical documentation for future developer onboarding and scaling.
2. Technical Execution & Architecture Analysis
We conducted an in-depth code analysis to map system workflows, state transitions, and data persistence models across the Go ecosystem.
System Mapping & Modeling
- UML Architectural Diagrams: Drafted comprehensive Class, Sequence, and Component diagrams visualizing request lifecycles, middleware routing, and service layer dependencies.
- Data Flow & Entity Relations: Documented database schemas, transactional boundaries, and external API integrations for multi-courier shipping updates.
- Concurrency & Logic Audit: Analyzed Go routines, channel operations, and error-handling patterns to ensure transparent execution flow across core modules.
Core Documentation Modules
The technical documentation suite was structured into key operational pillars:
- API Endpoints & Payload Specifications: Standardized request/response specs, HTTP status codes, authentication protocols, and payload schemas for merchant-facing endpoints.
- Order Processing Pipeline: Step-by-step mapping of the COD lifecycle—from order creation and shipping label generation to automated escrow clearing upon delivery.
- Developer Onboarding Guide: A streamlined setup guide covering GitHub repository workflows, local environment configuration, environment variables, and execution commands.