Reactive programming is when applications react to an asynchronous data stream as it occurs. The following image illustrates the flow:
Reactive programming is not a fancy software engineering term only used by academics. It is, in fact, a programming model that can result in much greater efficiencies as opposed to the more common method of having applications iterate over data that is in memory.
There is more to reactive programming. First, let's consider that the data stream is provided by a publisher in an asynchronous manner to the subscriber.
Data streams are a binary input/output of strings and primitive data types. ...
