Step 3. Initialize the transaction from payment provider

With all the required details, you can process the transaction.

What happens on the storefront

When a customer selects your payment method and clicks the Go to Payment button at the checkout, Ecwid redirects a customer from the store checkout to your paymentUrl.

After that, you show the customer a placeholder while processing the initial payment request. Once that part is finished, you have two options:

• If possible, initialize the payment form right on the paymentUrl . It reduces the number of redirects and simplifies the checkout process for customers.

• Otherwise, initiate a transaction and redirect a customer to an external payment page hosted by the payment provider.

What happens on the backend

Independantly of the storefront approach you chose, you must ensure that the app receives the transaction status to its paymentUrl and keeps the essential order details to complete the payment process while waiting.