Building a Marketplace for Seamless Shopping and Payment Integration

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Building a Marketplace for Seamless Shopping and Payment Integration

About the Project

Our client, a forward-thinking startup, aimed to revolutionize local commerce by creating a digital marketplace that connected small sellers to a broad customer base. The platform needed to cater to various product categories while ensuring a smooth and secure shopping experience for users. QSoft was entrusted with building a robust, scalable marketplace that facilitated real-time inventory updates for sellers, secure payment processing for customers, and high performance to handle peak traffic. The platform was designed to empower small businesses by providing a user-friendly interface and advanced transaction capabilities.

Technologies

  • Backend Development: Node.js, Express
  • Frontend Development: React
  • Database: MongoDB, Redis
  • Payment Integration: Stripe, PayPal, Regional Gateways
  • Messaging: RabbitMQ
  • Scalability and Deployment: AWS Lambda, Kubernetes, NGINX
  • Security: PCI DSS-compliant encryption, OAuth 2.0
  • CI/CD: Jenkins
  • Real-Time Inventory Updates: Redis
    • Project duration

    Project duration: 7 months

    Team Size

    Team Size: 8

    Satisfaction Score

    Satisfaction Score: 96%

    The Screenshots

    Project challenges

    Challenges

    • Diverse Product Management: With sellers offering a wide array of products, ranging from handmade crafts to fresh produce, the platform had to support dynamic inventory updates and custom workflows for different product categories. Ensuring accurate stock levels and preventing overselling were critical to maintaining customer trust.
    • Secure and Flexible Payment Integration: The platform needed to process payments securely while supporting multiple gateways for regional and international transactions. This required compliance with global payment security standards and a seamless experience for customers across regions.
    • Handling High Transaction Volumes: As a marketplace anticipating rapid growth, the platform had to support thousands of concurrent users without compromising on speed or reliability. This meant designing a system that could scale efficiently and ensure uninterrupted operations during peak times.

    How QSoft solves problems

    Our Solutions

    • Dynamic Product and Inventory Management: QSoft implemented a microservices architecture with a dedicated service for inventory management, built using Node.js and MongoDB. Real-time inventory updates were achieved with Redis caching, ensuring customers always saw accurate stock levels. A category-based product workflow was introduced, enabling sellers to customize their product listings based on type, size, and availability.
    • Secure and Multi-Gateway Payment System: To provide flexibility and security in payments, the platform integrated multiple gateways such as Stripe, PayPal, and regional payment solutions. A payment orchestration layer developed with RabbitMQ handled transaction routing and ensured retries for failed payments. Data security was enhanced using PCI DSS-compliant encryption and OAuth 2.0, ensuring secure processing of sensitive customer information.
    • Scalable System for High Traffic: The system leveraged Kubernetes for container orchestration, enabling automatic scaling based on traffic demands. AWS Lambda was used to manage serverless computing for key tasks, ensuring resource efficiency. Load balancing with NGINX distributed user requests evenly, maintaining high performance even during peak hours. A CI/CD pipeline with Jenkins enabled regular updates without downtime.

    Project successful result

    Results

    • Boost in Marketplace Transactions: The platform recorded a 50% increase in transactions within the first quarter, driven by a smooth shopping experience and seamless payment processing.
    • Support for Thousands of Concurrent Users: The scalable microservices architecture allowed the platform to handle over 10,000 concurrent users without performance degradation, ensuring reliability during high-traffic periods.
    • Secure and User-Friendly Payments: The multi-gateway payment system provided customers with flexible options, increasing transaction success rates. Advanced encryption and compliance with global security standards fostered user trust.
    • Real-Time Inventory Accuracy: The integration of real-time inventory updates reduced overselling incidents by 90%, improving seller reputation and enhancing customer satisfaction.

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