The module implements two major features to run a Magento 2 single page checkout for a smooth flow and integration with Avarda's Check-out 2 API.
The implementation goal of the backend API is to provide an API as a proxy to communicate with Avarda. The purpose of using a proxy is to have control of all incoming and outgoing requests with Avarda on the server level. The backend utilizes the standard Magento 2 cart API, with added resources for performing Avarda-specific actions.
composer require avarda/checkout
bin/magento module:enable Avarda_Checkout
bin/magento setup:upgrade
Or
app/code/Avarda/Checkout/
bin/magento module:enable Avarda_Checkout
bin/magento setup:upgrade