If for any reason, it's still necessary to keep `spring-boot-starter-web`, is it possible to use `Co...

# spring

[Luiz Aguiar]

If for any reason, it's still necessary to keep spring-boot-starter-web, is it possible to use Coroutines by adding spring-boot-starter-webflux?
will it work properly to have a Flow controller function for data stream?

[Robert Jaros]

I think you can't use both -web and -webflux starters at the same time.

[Luiz Aguiar]

you can... but not all Reactive components are available/started since the application type is still servlet .
that's my question's point

[Jacob]

If we're talking boot, there's a property you can set that will flip things to reactive mode. The reason this is guarded by a property is so that non-reactive users can put webflux on the classpath for the purposes of WebClient and still have their webserver be plain old requet-per-thread

[Jacob]

Actually it's not really a property. its this: https://docs.spring.io/spring-boot/docs/current/reference/html/web.html#web.reactive.webflux

Adding both spring-boot-starter-web and spring-boot-starter-webflux modules in your application results in Spring Boot auto-configuring Spring MVC, not WebFlux. This behavior has been chosen because many Spring developers add spring-boot-starter-webflux to their Spring MVC application to use the reactive WebClient. You can still enforce your choice by setting the chosen application type to SpringApplication.setWebApplicationType(WebApplicationType.REACTIVE)

[Luiz Aguiar]

I think I know the answer... but the point was if it may be still possible to use Coroutines while the Spring application is set to mvc/servlet... but having webflux also in the classpath.

[Jacob]

sure, you'll just need to wrap every entry point in a runBlocking