There are basically two different ways to integrate Ecster Pay into your e-commerce application - integrated or external checkout.
Using the integrated Ecster Pay checkout, the customer never leaves your site during the checkout. This solution is more advanced but also more flexible. To integrate the integrated Ecster Pay checkout, read the tutorials Get started and Update cart.
The external Ecster Pay checkout is easier to implement but less flexible. Using this solution, the customer leaves your site during the checkout. Read about this solution in External Ecster Pay.
Below is a list of all tutorials: