Spring Reactive Programming

Question 1

What is reactive programming in Spring?

Answer 1

A programming paradigm focused on handling asynchronous data streams and non-blocking operations, supported by Spring WebFlux.

Question 2

What is Spring WebFlux?

Answer 2

A reactive web framework in Spring for building non-blocking, asynchronous applications.

Question 3

What is Mono in Spring WebFlux?

Answer 3

A reactive type representing a single asynchronous result or none.

Question 4

What is Flux in Spring WebFlux?

Answer 4

A reactive type representing a stream of multiple asynchronous results.

Question 5

What is @EnableWebFlux in Spring?

Answer 5

An annotation to enable Spring WebFlux for building reactive web applications.

Question 6

What is the difference between Spring MVC and Spring WebFlux?

Answer 6

Spring MVC is synchronous and blocking, while WebFlux is asynchronous and non-blocking.

Question 7

What is backpressure in reactive programming?

Answer 7

A mechanism for controlling the flow of data between producers and consumers to avoid overwhelming the consumer.

Question 8

How do you handle errors in Spring WebFlux?

Answer 8

Using methods like onErrorResume() or onErrorReturn() to handle exceptions reactively.

Question 9

What is Reactor in Spring?

Answer 9

A reactive library used by Spring WebFlux to implement the Reactive Streams API.

Question 10

What is the @Controller annotation used for in Spring WebFlux?

Answer 10

It is used to define a reactive web controller in Spring WebFlux.