Multi-Vendor • E-Commerce App • Video Commerce

Welfog
Modern Multi-Vendor Shopping App

Welfog is a production-ready multi-vendor shopping mobile application designed for fast product discovery, secure payments, real-time order tracking, and scalable business growth.

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React Native Node.js Express.js MongoDB

Project Overview

Welfog is a modern multi-vendor e-commerce mobile application that brings sellers and customers together on a single, scalable platform with a focus on speed, usability, and reliability.

The app supports vendor onboarding, detailed product listings, secure payments, real-time order tracking, location-based delivery using map integration, and social-style video commerce to enhance product discovery.

Launch Date

2025

Project Duration

Ongoing Development & Scaling

Our Role & Responsibilities

App UI & Frontend Development

Built a clean, fast, and intuitive mobile UI with smooth navigation and reusable components.

Backend & API Development

Developed scalable APIs for authentication, products, orders, payments, and admin operations.

Database Design (MongoDB)

Structured scalable MongoDB schemas for users, vendors, products, and orders.

Payments & Transactions

Integrated secure payment flows with transaction handling and order status tracking.

Admin & Vendor Management

Implemented admin and vendor controls for product, order, and inventory management.

Security & App Logic

Applied secure authentication, validations, and robust business logic across the app.

How It Was Built

1

Requirement Analysis & App Planning

Analyzed the complete multi-vendor e-commerce flow including user roles, vendor operations, product discovery, checkout, and delivery journeys.

2

Tech Stack & System Architecture

Designed a scalable architecture using React Native for the mobile app, Node.js with Express for APIs, and MongoDB for data storage.

3

Mobile App UI Development

Built a mobile-first user interface with reusable React Native components, smooth navigation, and optimized user experience.

4

Backend API Development

Developed secure REST APIs to handle authentication, vendors, products, cart, orders, payments, and user interactions.

5

Database Design & Data Modeling

Structured MongoDB schemas for users, vendors, products, carts, orders, payments, videos, and delivery management.

6

Payments, Address & Delivery Flow

Integrated secure payment gateways, implemented address management with map-based selection, and built delivery workflows.

7

Admin & Vendor Management

Implemented admin and vendor dashboards for product listing, order processing, inventory handling, and user management.

8

Testing, Optimization & Deployment

Performed thorough testing, optimized performance and APIs, resolved edge cases, and prepared the application for production deployment.

work

App Screens & Features Preview

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welfog
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Our Expertise

Technology Stack

Modern App Development Stack
React / React Native
Native CSS / NativeWind
Node.js
Express.js
MongoDB
Google Maps API
Secure Payment Gateway
Auth & Security
Git / GitHub

Key Features Implemented

Multi-Vendor E-Commerce Platform

A full-featured multi-vendor e-commerce system where multiple sellers can list products, manage pricing, discounts, and inventory while customers enjoy a seamless shopping experience through a single mobile app.

Secure OTP Authentication

Mobile number based OTP authentication system that enables fast, secure, and password-less login while protecting user accounts and sessions.

Advanced Cart & Checkout System

Dynamic cart functionality with quantity control, real-time price calculation, discounts, order summary, and a smooth checkout flow for a seamless purchase experience.

Wishlist & Favorites

Users can add products to their wishlist, manage favorite items, and quickly access saved products for future purchases.

User Profile & Account Management

Comprehensive user profile system allowing customers to manage personal details, saved addresses, order history, wishlist, and account preferences from a single dashboard.

Location Based Delivery System

Integrated location and address management system using map-based selection, pincode validation, and delivery area support for accurate and efficient order fulfillment.

Video & Reels Commerce

Short video and reels based shopping experience where users can explore products through engaging content with like, view, share, and follow interactions.

Order Tracking & Notifications

Real-time order tracking system with automated notifications for order status, delivery updates, and important user activities.

Secure Payment Integration

End-to-end secure payment integration with encrypted transactions, ensuring safe, reliable, and smooth online payments within the application.

Results That Speak & Project Outcomes

User Engagement

Enabled a smooth shopping and video commerce experience with high user interaction through wishlist usage, reels engagement, and repeat customer activity.

App Performance

Delivered fast load times, optimized API responses, and smooth navigation ensuring a responsive and lag-free experience across devices.

Scalable Digital Platform

Built a scalable architecture capable of supporting multiple vendors, growing product catalogs, and increasing user traffic without performance issues.

Feature-Rich Growth

Successfully implemented advanced features including multi-vendor management, secure payments, video-based shopping, and real-time order tracking.

Key Takeaways

Optimized app architecture and efficient APIs resulted in fast load times and a smooth user experience across the application.

Video-based and social commerce features significantly improved user engagement and product discovery.

Mobile-first design was essential to deliver an intuitive and seamless shopping experience for modern smartphone users.

Secure authentication and encrypted payment flows are critical for building user trust in e-commerce applications.

User-centric profile, wishlist, and order tracking features increased repeat usage and customer retention.

Scalable backend architecture allows easy expansion to support more vendors, products, and active users.

Time & Effort Analysis

Transparent breakdown of effort across planning, development, and delivery

Total Project Hours

640

Completed over 16 weeks

Design & Planning 96 hrs · 15%
Frontend Development 208 hrs · 32%
Backend Development 192 hrs · 30%
Testing & QA 80 hrs · 13%
Documentation & Deployment 64 hrs · 10%

16

Weeks Duration

40

Hours / Week

7

Major Milestones

Challenges & Solutions

Problem: Handling multiple vendors with different products, pricing, and inventory while keeping data consistent and preventing conflicts across the platform.

Solution

Designed a scalable backend architecture with vendor-specific data models, proper indexing, and API-level validations to ensure accurate product and inventory management.

Problem: Ensuring smooth performance on mid-range and low-end smartphones while handling heavy content such as product images and video reels.

Solution

Implemented lazy loading, optimized media assets, efficient API responses, caching strategies, and performance-focused UI rendering for mobile devices.

Problem: Managing sensitive user data and payment information without compromising security or slowing down the checkout experience.

Solution

Integrated secure payment gateways, implemented encrypted data transmission, secure authentication, and strict access controls across the application.

Problem: Delivering a smooth reels-style video experience while maintaining fast load times and seamless interaction across different devices.

Solution

Optimized video streaming, implemented efficient media loading strategies, and fine-tuned UI interactions to ensure a responsive and engaging video commerce experience.

Ravindra Singh Bhati

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