The Administration is a Single Page Application that provides a rich user interface on top of REST-API based communication with the core. It is an Interaction-Oriented-System following the example of the Web-Components patterns - albeit through VueJS.

└── app
└── core
└── flag
└── module

The src root directory is structured along the three different use cases the administration faces: Provide common functionality, provide an application skeleton, provide modules.

Contains the application basis for the administration. Generally you will find framework dependant computational components here.
Contains the binding to the core api and services.
UI and state management of specific view pages, structured along the Backend core modules.

Contrary to the backend the administration contains no business logic. Therefore there is no functional layering but a flat list of modules.

The dependency structure is:

Shopware Administration

Spreading of functionality

One module represents a navigation entry in the administrations main menu. Since the admin is highly dependant on the eCommerce core of the backend the module names reappear in the administration, albeit in a slightly different order. The main building block, which the administration knows, is called component, adjacent to Web-Components.

A component is the combination of styling, markup and logic. What a component does will not surprise you, if you already are familiar with the MVC-Pattern. The role of the model and controller collapses into a single class though.

Shopware Administration Component

Components can be and often are nested.

Module structure

Each module provides a maximum three different classes of components. These classes represent an escalation pattern against the depth of the contained structure.

└── page1
    └── view1
        └── component1
        └── component2
        └── component3
    └── view2
        └── component4
        └── component5
        └── component6
└── page2
    └── view3
        └── component7
        └── component8
        └── component9
    └── view4
        └── component10
        └── component11
        └── component12
            └── subcomponent1
            └── subcomponent2
                └── [...]

A page represents the entry point or the page that needs to be rendered and encapsulates views. A view is a subordinate part of the page that encapsulates components. A component can itself encapsulate different components, from this level on there is no distinction in the directory structure made.

At least one page is mandatory in each module. Though views and components can be present in the module a vast default component library is present to help with default cases.

Cross cutting concerns

Apart from the - arguably most central - responsibility of creating the UI itself the administrations components implement a number of cross cutting concerns. The most important are:

Data management
The administration displays entities of the eCommerce Core and handles the management of this data. So of course REST-API access is an important concern of pages and views - where necessary. You will find many components working with in-memory representations of API-Data.
In contrast to the backend the administration is a long running process contained in the Browser. Proper state management is key here. There is a router present handling the current page selection. View and component rendering is then local in relation to their parents. Therefore each component manages the state of its subcomponents.

So a more accurate representation of a typical module is this diagram:

Shopware Administration Cross Cuttiong Concerns