Building a Secure, Flexible BigCommerce Payment Gateway for PayAssist

Overview

PayAssist required the development of an exclusive plugin for select merchant customers utilizing BigCommerce to ensure safe, secure, and efficient payment flows. Because the solution was directly integrated into the checkout process, the plugin needed to offer significant flexibility in both appearance and functionality to accommodate the diverse requirements of different merchants.

Key Outcomes

Rapid Development: Delivered a functional front-end application and back-end integration within a 10-week timeframe.
Seamless API Integration: Successfully managed requests and responses between BigCommerce and payment processor APIs to facilitate a smooth user experience.
Versatile Payment Methods: Implemented support for the TranSafe gateway, including an iframe-based method (PaymentFrame) as well as direct POST and REST API calls.

Background

PayAssist is a company operating within the e-commerce industry and based in San Diego, CA. The company specializes in payment gateway solutions, which serve as critical components for online retailers. Their business focuses on providing secure, reliable payment infrastructure that meets the evolving technical and user experience needs of merchants utilizing e-commerce platforms like BigCommerce.

Brief

LIM was tasked with developing a custom payment gateway plugin for BigCommerce merchants. This involved building a front-end application and a back-end integration compatible with BigCommerce and payment processor APIs, while ensuring the solution remained customizable.

Goals

The primary goal was to deliver a highly protected transaction process that online businesses could easily tailor to their unique operational rules. Key objectives centered on creating an intuitive, single-stage form layout that lowered buyer friction while still giving brands the freedom to implement advanced checkout logic.

Approach

The strategy focused on prioritizing checkout flexibility by designing a solution that paired optimized one-page checkout best practices with robust data protection. LIM combined project management, technical leadership, and specialized front-end and back-end development expertise to ensure the integration met both security and performance standards. Rigorous quality assurance was integrated into the process to verify that the final plugin operated seamlessly across different API environments.

Front-End and Back-End Integration

The team delivered a complete front-end application for BigCommerce, paired with a robust back-end integration engineered to interface with both BigCommerce APIs and external payment processor APIs. By managing the complex exchange of requests and responses between these systems, the solution ensures a smooth, reliable transaction experience for the end customer. This integration was designed to be highly adaptable, allowing merchants to adjust the plugin’s design and functionality as their business needs evolve.

Secure Payment Processing

To offer merchants versatile payment acceptance methods, the plugin supports the TranSafe gateway. This includes an iframe-based method called PaymentFrame, which enhances security, alongside direct POST and REST API calls to accommodate various technical setups. The multi-method approach provides merchants with a secure foundation that maintains the necessary flexibility to handle diverse payment requirements while adhering to industry security standards.

A Scalable Foundation for Secure Payments

The delivery of this custom gateway plugin provides PayAssist with a high-performance tool that bridges the gap between complex payment processing and user-friendly e-commerce checkouts. By providing a balance of standardized checkout best practices and advanced customizability, the solution enables merchants to manage secure transactions efficiently. This framework is well-positioned to support future platform updates and diverse merchant demands, ensuring long-term utility within the BigCommerce ecosystem.

Technology Partners

The Impact

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Building a Secure, Flexible BigCommerce Payment Gateway for PayAssist

Overview

Key Outcomes

Background

Brief

Goals

Approach

Front-End and Back-End Integration

Secure Payment Processing

A Scalable Foundation for Secure Payments

Technology Partners

The Impact

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