In this pattern, two different subsystems do not share the same semantics, but they can talk to each other with the implementation of a layer (mostly with the help of the Facade or Adapter patterns). The layer works in such a way that a request made by one subsystem reaches out and talks to another subsystem. In this section, we will discuss the Anti-Corruption Layer, from the perspective of our FlixOne application.
Maintaining access to new and legacy systems requires that the new system adheres to at least some of the APIs or other semantics of the legacy system. If these legacy apps have problems with consistency, then they corrupt what could otherwise be a cleanly crafted modern application. These issues or problems can also arise in an existing system that you want to connect with an external/legacy system. To sort out these...