If applications communicate with the help of messaging, it is necessary to ensure that the applications can connect to the messaging system to send and receive messages. This is where the channel adapter is helpful. The diagram depicting the channel adapter pattern is shown as follows:
A channel adapter should be able to access the application's API or data and publish messages on a channel based on this data. It should also be able to invoke the functionality inside the application and receive messages. The adapter ideally acts as a client to the messaging system. The channel adapter invokes the functions of the application through an interface that is supplied by the application. This helps an application to remain integrated with a messaging system if it has a proper channel adapter. In the next section, we will focus on mobile integration patterns, that...
