Spring webflux and reading from database

Question

Spring 5 introduces the reactive programming style for rest APIs with webflux. I\'m fairly new to it myself and was wondering wether wrapping synchronous calls to a database

Answer 1

Based on this blog you should rewrite your snippet in following way

@GetMapping(value = "/v1/measurements")
public Flux getMeasurements() {
    return Flux.defer(() -> Flux.fromIterable(repository.findByFromDateGreaterThanEqual(new Date(1486980000L))))
           .subscribeOn(Schedulers.elastic());
}