Event-based Stream handling – some examples

Before we conclude this chapter, let's discuss a few examples, to work with an event-based system using the RxCpp library. In this section, we'll discuss two examples to understand how effective the RxCpp library can be in meeting real-world scenarios. We will discuss an example that demonstrates the aggregation of data in a Stream and application event handling, using the RxCpp library.

Aggregation based on Stream data

In this section, the Stream item is a user-defined type to represent an employee, and the code is intended to group the input Stream based on the roles and salaries of employees:

#include "rxcpp/rx.hpp" 
 
namespace Rx { 
    using namespace rxcpp; 
    using namespace rxcpp::sources; 
    using namespace rxcpp::subjects; 
    using namespace rxcpp::util; 
} 
 
using namespace std; 
 
struct Employee { 
    string name; 
    string role; 
    int salary; 
}; 

The libraries and namespaces required in the code are included, and the data...