The Connect pattern
The Connect pattern was first introduced by David Denton in his technical article, Smash your Adapter Monolith with the Connect pattern, on the internet in 2011.
This pattern, however, has a different focus from the three architectural patterns previously discussed. It is specifically targeted at remote system integration. It aims to provide a testable and extensible approach to encapsulate remote API interactions.
The concept of the Connect pattern is illustrated in Figure 7.6:
Figure 7.6 – The Connect pattern
An integration operation is abstracted as an Action. It understands how to generate a request and how to transform a response into an internal object. However, it does not know the connection details to the external system.
An adapter, on the other hand, is crafted to adapt to a specific system. It can establish a connection with an external system while delegating the actual request-response exchange to an Action...
