How to see result of Flux<Object> in Postman? - spring

Question

I mimic tutorial at https://howtodoinjava.com/spring-webflux/spring-webflux-tutorial/ . My MongoDB (My version https://fastdl.mongodb.org/windows/mongodb-windows-x86_64-5.0.5-signed.msi). Postman v9.8.0 , Windows 10 x64.
My controller
package com.howtodoinjava.demo.controller;
import com.howtodoinjava.demo.model.Employee;
import com.howtodoinjava.demo.service.EmployeeService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import java.time.Duration;
#RestController
public class EmployeeController {
#Autowired
private EmployeeService employeeService;
#RequestMapping(value = {"/create", "/"}, method = RequestMethod.POST)
#ResponseStatus(HttpStatus.CREATED)
#ResponseBody
public void create(#RequestBody Employee e) {
employeeService.create(e);
}
#RequestMapping(value = "/{id}", method = RequestMethod.GET)
#ResponseBody
public ResponseEntity<Mono<Employee>> findById(#PathVariable("id") Integer id) {
Mono<Employee> e = employeeService.findById(id);
HttpStatus status = e != null ? HttpStatus.OK : HttpStatus.NOT_FOUND;
return new ResponseEntity<Mono<Employee>>(e, status);
}
#RequestMapping(value = "/name/{name}", method = RequestMethod.GET)
#ResponseBody
public Flux<Employee> findByName(#PathVariable("name") String name) {
return employeeService.findByName(name);
}
#RequestMapping(method = RequestMethod.GET, produces = MediaType.TEXT_EVENT_STREAM_VALUE)
#ResponseBody
public Flux<Employee> findAll() {
// Flux<Employee> emps = employeeService.findAll();
Flux<Employee> emps = employeeService.findAll().log().delayElements(Duration.ofSeconds(1));
emps.subscribe();
return emps;
}
#RequestMapping(value = "/update", method = RequestMethod.PUT)
#ResponseStatus(HttpStatus.OK)
public Mono<Employee> update(#RequestBody Employee e) {
return employeeService.update(e);
}
#RequestMapping(value = "/delete/{id}", method = RequestMethod.DELETE)
#ResponseStatus(HttpStatus.OK)
public void delete(#PathVariable("id") Integer id) {
employeeService.delete(id).subscribe();
}
}
In debug console, I see the result

Answer 1

The reason why the responses are empty is that no getter methods are defined in the Employee entity class. Adding the following should make it work:
public int getId() {
return id;
}
public String getName() {
return name;
}
public long getSalary() {
return salary;
}
As a side note, consider mapping your entities into EmployeeDTO instances.