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API Development and Payment Gateway Integration for Online Store

Our team helped a well-known company develop a custom backend for their online store. The server-side part provides all necessary functionality and complies with General Data Protection Regulation (GDPR) requirements and recommendations.

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All Technologies Used

Node.js
Node.js
Rspec
Rspec
Jest
Jest

Motivation

The goal was to create a custom online store from scratch with all the necessary functionality, including direct online payment, product tracking, and integration with a popular payment gateway. The store had to be fully compliant with GDPR and have features like user account management, order processing, product recommendations, and more.

Main Challenges

Challenge 1
GDPR Compliance

As the GDPR regulation was newly implemented, there were challenges around understanding and implementing personal data encryption and processing. The team had to ensure the entire solution complied with these requirements for users in the European Union.

Challenge 2
Lack of Access to Front-End Designs

The backend development team didn’t have access to the front-end designs or mockups. This created difficulties in ensuring data was presented in the correct format, requiring frequent modifications of the endpoints to fit the UI design.

Challenge 3
Custom Development vs Existing Solutions

Despite the availability of platforms like Shopify and Magento, the customer’s unique business processes required a custom solution. Developing this solution from scratch added complexity, time, and cost to the project, but it was necessary to meet all business needs.

Key Features

  • Navigation & Filtering: Website navigation and product filtering for an intuitive shopping experience.
  • Product Card & Order Management: Create, edit, and display product cards along with comprehensive order management.
  • Payment & Invoice: Payment and discount pages, as well as automatic invoice generation in multiple formats (PDF, email, HTML).
  • Security Features: User data encryption and compliance with GDPR for protecting personal data of EU residents.
  • Multi-Language Interface: Supported both German and English languages to cater to a wider customer base.
  • Payment Gateway Integration: Integrated PayPal, Visa, Mastercard, and American Express for seamless online payments.

Our Approach

Agile Methodology
The project was managed using SCRUM methodology, with the project owner overseeing progress and our team performing tasks as assigned through Jira. We handled tasks ranging from feature development to ERP/CRM integration and user account management.
Development of Custom E-commerce Features
Our team built custom features like order management, invoice generation, and payment gateway integration to match the customer’s specific business needs. This included multi-language support (German/English) and GDPR-compliant data security.
Payment Gateway Integration
We integrated the payment gateway, supporting PayPal, Visa, Mastercard, and American Express, allowing users to securely complete transactions online.

Project Impact

Azati developed a fully functional and secure online store with custom features designed specifically for the customer’s business processes.

The solution was GDPR-compliant, ensuring personal data protection, and optimized for a smooth user experience.

With the payment gateway integration, the store is now capable of handling payments from various methods securely.

The store was launched successfully, and the customer’s in-house team has since taken over maintenance and future feature development.

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