SembapuR (E-Commerce)

📦 Sembapur — E-Commerce / E-Mart App

Sembapur is an Android e-commerce application developed using Flutter, aimed at providing a streamlined and user-friendly shopping experience tailored for the Indonesian market. It features product browsing with filters and search, a dynamic cart system, and a smooth checkout process with multiple payment methods. Users can manage profiles, save favorite items, and view order history — all within a modern, mobile-optimized interface.

The app includes support for both Bahasa Indonesia and English, with responsive design built to perform well across various screen sizes. From casual browsing to complete order management, Sembapur offers a practical and localized solution for everyday shopping needs.

🔧 Role: Mobile Developer

🧰 Tech Stack:

• SDK: Flutter

• State Management: Provider

• Networking: Dio (REST API)

• Localization: JSON-based i18n (multi-language support)

• UI/UX: Custom theming, responsive screen utilities

• Other: Google Fonts, Material Design

📌 Key Features & Responsibilities

🔍 Architecture & Code Structure

• Contributed to the development of a modular, scalable app architecture using a ViewModel-based pattern

• Helped implement a centralized API service layer with token authentication, dynamic method handling (GET, POST, etc.), and error management

• Participated in the setup of a repository layer to abstract API operations cleanly across multiple modules
  
  

🛠️ State Management & ViewModel Integration

• Worked alongside the team to build and maintain feature-specific ViewModels, such as:

  • Authentication (Email & Social Login)

  • Product Catalog (Listing, Search, Filtering)

  • Shopping Cart & Checkout Process

  • User Profile & Address Management

  • Favorites (Wishlist) and Order History

• Focused on implementing loading state control, response parsing, and basic validation logic via a shared BaseModel

🛒 Core E-Commerce Features

• Developed user flows for product browsing, detailed views, and category-based filtering

• Implemented cart functionality with quantity updates, item removal, and total price computation

• Contributed to checkout module with support for cash and credit payment methods, including final order review

📍 User & Merchant Features

• Built pages for user registration, profile editing, and password management

• Supported the merchant onboarding flow, including shop profile and documentation handling

• Integrated location pickers with dependent dropdowns for provinces, cities, and subdistricts

🎨 UI/UX Implementation

• Helped craft a centralized theme system for colors, typography, and component-level styles

• Developed reusable custom widgets, including:

  • Form inputs, dropdowns, and date/file pickers

  • Product tiles and listing components

  • Navigation elements and interactive bottom bars

  • Shimmer effects, loading indicators, and error placeholders

• Ensured visual consistency and component reusability throughout the user interface
  
  

🌍 Localization & Responsiveness

• Integrated multi-language support (English & Indonesian) using a clean JSON key-based structure

• Applied responsive design utilities to adapt layouts for different devices and orientations
  
  

🚀 Portfolio Value & Outcomes

• Demonstrates advanced Flutter development skills applied to a real-world commercial app

• Showcases strong understanding of UI/UX, state management, and clean code architecture

• Highlights ability to collaborate in a multi-developer environment and deliver production-ready modules

• Built with scalability, reusability, and internationalization in mind — a solid portfolio piece for client and team-based Flutter work