I am a user of Gridbox from Taiwan. Since the built-in payment gateways currently do not support local providers in Taiwan (such as ECPay or NewebPay), I am planning to develop a custom payment plugin for my Gridbox Store.
To ensure my development aligns with the Gridbox architecture, could you please provide some guidance on the following questions?
Development Documentation: Do you have any developer documentation or a "Skeleton Plugin" specifically for Gridbox Store Payment Gateways in Joomla 5?
Directory Structure: Should custom payment methods still be placed under /components/com_gridbox/libraries/store/payments/?
Class Inheritance: Which core class should my custom payment plugin extend? (e.g., gridboxStorePayment?)
Callback Handling: What is the recommended way to handle asynchronous server-to-server notifications (Webhook/ReturnURL) within the Gridbox framework to ensure order status updates correctly?
Joomla 5 Compatibility: Are there any specific Namespacing requirements or breaking changes I should be aware of compared to Joomla 4?
I plan to use ECPay AIO Redirect API. How can I set up a custom callback URL in Gridbox that bypasses Joomla's default routing/cache to ensure the payment notification (POST) from the gateway is received properly?
I really love the flexibility of Gridbox and hope to bring local payment support to the Joomla community in Taiwan. Thank you for your time and support!
Best regards,
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