Social Network & E-commerce App

Overview

This project describes the architecture, technology stack, and main features of a comprehensive mobile application developed with a robust backend. The system integrates features of a social network, e-commerce platform, and a professional job board.

Key Features & Modules

1. User Management & Profiles

• Authentication: Registration, login with JWT tokens, and password recovery.
• Roles and Permissions: Granular access control by assigning specific roles and permissions to users.
• Multi-purpose Profiles: Custom profiles with photos, descriptions, social links, popularity metrics, and special modes like "seller" for e-commerce.
• Active Geolocation: Profiles have a search radius in kilometers to show nearby content or people.

2. Community and Social Network

• Posts: Users can create content with categories, geolocation, and media attachments (images, video).
• Social Interactions: Full interaction system including Likes, Shares, Favorites, and View counts.
• Followers: Follow other profiles to receive updates, including handling of "follow requests" for private accounts.

3. E-commerce & Shopping Cart

• Product Sales: Posts can include wholesale and retail prices, functioning as products.
• Cart Management: Complete module to add posts to a cart, control quantities, and track cart status.
• Payments: Registration and control of payments associated with the cart (payment types, amounts, receipts).
• Delivery Logistics: Shipment management (delivery type, shipping costs, dates).

4. Real-Time Chat & Messaging

• Chat Rooms: Support for 1-to-1 direct chats and group chats, with admin controls.
• Messages & Multimedia: Text messages, file exchange, threading (reply to specific messages), and read receipts.

5. Job Board & Professional Network

• Professional Profiles: An extension of the normal profile focused on work, allowing users to upload a PDF CV and detail their career path.
• Work Experience: Log of "Studies" and "Work Experience" with positions, companies, and dates.
• Job Offers: Companies can publish job vacancies with details like salary, schedule, and location.
• Applications & Favorites: Users can apply directly through the platform. Employers can manage candidate status and save "Professional Profiles" in favorites.

Technology Stack

This project uses a modern ecosystem of tools to guarantee scalability and performance.

Backend (app-api)

• Framework: NestJS (Node.js) for scalable and maintainable API creation.
• Database & ORM: PostgreSQL managed via Prisma ORM.
• Authentication: JWT (JSON Web Tokens) and Bcrypt for sessions.
• Real-time: Socket.io for chat and live notifications.
• Cache & Tools: Redis to optimize API response, Nodemailer, Fluent-ffmpeg for media, and Expo Server SDK for push notifications.

Mobile Application (app-movil)

• Framework: React Native powered by Expo and Expo Router.
• Navigation: React Navigation for structured routing.
• Geolocation: react-native-maps and expo-location for map and location handling.
• Multimedia & Storage: Expo modules for AV, Image picking, and compression. AsyncStorage for local caching.
• Connection: Axios for HTTP requests and Socket.io-client for real-time events.

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Interested in learning more about this project? Get in touch with me to discuss custom system development.