GoPay and Comgate for OpenCart 2.3, 3.x and 4.x — cards, Apple Pay, Google Pay, banks

GoPay and Comgate connects both services to OpenCart for shops in Czechia and Slovakia. The buyer pays on the provider’s secure page, and the order becomes paid only after the module reads the payment from the provider with your keys.

What the buyer sees

At checkout the buyer picks the payment method and goes to the provider’s page. If they cancel, they return to a page saying the payment did not go through, with a button for a new attempt, and the cart stays. If the provider does not answer, the buyer stays at checkout with a clear message and the technical text goes to the log.

What the admin gets

In the settings the check button shows whether the service accepts the keys, and the addresses for the provider’s portal are next to it. If the amount paid does not match the order, the order does not become paid and the history gives the reason. In Pro a refund goes straight from the order page, and an amount above the remainder is refused.

How it works, step by step

1. Enter the GoPay or Comgate keys and check the connection.
2. For Comgate, put the addresses from the settings into the provider’s portal.
3. The buyer picks a method and pays on the provider’s page.
4. The provider sends a notification, the module reads the payment.
5. Amount and currency match, and the order becomes paid.

Under the hood

• For the module the return address and the notification body are only a hint: the status comes from the API.
• Secrets are stored encrypted and never logged.
• Twisto and Skip Pay are not in the method choice because GoPay has them in preview. QR is not a separate feature.

How to install

1. Extensions → Installer: upload the archive for your version and keep the file name.
2. OpenCart 2.3: the Installer copies files only with FTP enabled. Without FTP copy the contents of upload/ to the shop root by hand.
3. OpenCart 2.3 and 3.x: Extensions → Modifications → Refresh.
4. Extensions → Payments → GoPay & Comgate Payments → install button → Edit.
5. Pick GoPay or Comgate, enter the keys and check the connection.
6. Make a payment in test mode.
7. For Pro: paste the key or start the 7-day trial.