Reactive extension in Microservice

 Reactive Extensions is a design approach in which we collect results by calling multiple services and then compile a combined response.

These calls can be synchronous or asynchronous, blocking or non-blocking.

It is also known as Rx.

Rx works opposite to legacy flows. It is very popular in distributed systems. You just react to the response received from another Microservice.

Reactive extensions enables imperative programming languages to compose asynchronous and event-based programs by using observable sequences. In other words, it enables your code to create and subscribe to data streams named observables. Reactive extensions combine the observer and iterator patterns and functional idioms to give you a sort of toolbox, enabling your application to create, combine, merge, filter, and transform data streams.