Architecture

This section provides how payment transactions are processed through integrated payment extensions. It ensures a secure and efficient flow of payments, refunds, and extension installations, enabling businesses to offer multiple payment options to their customers. This section covers the key flows involved in processing payments, handling refunds, and installing payment extensions.

This section covers the three key flows:

📄️ New Payment Flow

New payment forward flow architecture between Fynd Commerce, payment extension, and payment gateway for checkout transactions. Reference diagram and sequence for implementing standard payment integration.

📄️ Refund Flow

Refund flow architecture for Fynd Commerce payment extensions when customers cancel orders or request returns. Understand refund session lifecycle and platform-extension-gateway interaction.

📄️ Payment Extension Installation

Payment extension installation and activation architecture on Fynd Commerce seller applications. Learn OAuth install flow and how sellers connect gateway credentials through your extension.