Magento 2 implements the “service contracts” design pattern, which comprises a set of PHP interfaces defined for a module. A service contract encompasses both service and data interfaces. These interfaces conceal the intricacies of business logic from service requestors like controllers, web services, and other modules. By the way, our agency is developing Magento extensions, so if you need help with this, please contact us

We are going to talk about event system approach in development. The event is a very flexible way to extend application logic. This approach is actual in both Magento 1 and Magento 2. Let’s go ahead and check how it works.