CODE EXAMPLE FOR JAVA

set maven goals in eclipse

public Mono<ServerResponse> queryStore(ServerRequest request) { 

        Optional<String> postalCode = request.queryParam("postalCode");                            

        Mono<ServerResponse> badQuery = ServerResponse.badRequest().build();
        Mono<ServerResponse> notFound = ServerResponse.notFound().build();

        if (!postalCode.isPresent()) { return  badQuery; }

        Flux<Store> stores = this.repository
                .getNearByStores(postalCode.get(), 5);

        return ServerResponse.ok().contentType(APPLICATION_JSON)
                .body(stores, Store.class)
                .switchIfEmpty(notFound);
}