WeRent Backend System

Project Overview

WeRent is a comprehensive rental platform backend built with Nest.js, designed to handle property listings, user management, bookings, and payment processing. The system implements secure authentication, role-based access control, and a scalable architecture suitable for high-traffic scenarios.

The platform serves two primary user roles: Renters who browse and book properties, and Owners who list and manage their properties. The backend enforces business rules for bookings, handles payment integrations, and provides comprehensive API documentation for frontend integration.

Key Responsibilities

• RESTful API Development

  Designed and implemented comprehensive REST APIs for users, properties, bookings, and payments with proper HTTP standards and status codes.

• Role-Based Access Control (RBAC)

  Implemented granular permissions for Renters, Owners, and Admins using Nest.js guards and decorators to protect endpoints and resources.

• Relational Database Design

  Architected a normalized PostgreSQL schema with Prisma ORM, handling complex relationships between users, properties, bookings, and reviews.

• Business Logic Implementation

  Developed core rental logic including availability checking, double-booking prevention, booking lifecycle management, and payment status tracking.

• Data Validation & Sanitization

  Created validation pipes and DTOs for all input data, ensuring data integrity and security across all endpoints.

Technical Highlights