Payment extension overview
Payment extension integrate payment gateway with the Fynd Platform to provide payment processing services to merchants.
The following diagram illustrates how a merchant installs and activates a payment extension. For more detail, refer testing installation and activation guide.
Payment options page during checkout
Below is an example of how a Checkout
payment extension appears on payment options page during checkout.
Supported checkout type
Fynd Platform currently only supports standard checkout for payment extension. In standard checkout, the customer is redirected to the payment gateway hosted page to submit payment details and complete the transaction.
How to build payment extension
Depending on technology stack you are using, you have 2 options to build a payments extension
Option 1 - Using Node + React payment extension template
If you want to build using Node and React, you can use Payment Extension Javascript template. This template pre-implements extension OAuth, has required endpoints pre-implemented and include frontend code built where extension collects payment gateway credentials from merchant.
Option 2 - Build from scratch
If you want to build a payment extension from scratch, follow below guides
- Registering a payment extension - Create a payment extension on partner panel to get
Extension API Key
andExtension API Secret
that are required for your payment extension to interact with the Fynd Platform. This step is required even if you are using Payment Extension Javscript template asExtension API Key
andExtension API Secret
are required in template code's.env
file - Building Payment Extension - Implement installation, activation, payment and refund flow in your payment extension.
- Best practices and common issues - Learn about best practices while building payment extension and commonly encountered issues.
- Testing payment extension - Test your extension for the merchant and customer flow.