My API is returning me this:
[
{
"id": 1,
"uuid": "@B7304",
"username": "blabla",
"hearthBeat": 30,
"status": "well",
"date": "13/05/1333",
"latitute": 30,
"longitude": 40,
"cardiacSteps": 50
},
{
"id": 2,
"uuid": "@B7304",
"username": "blabla",
"hearthBeat": null,
"status": null,
"date": null,
"latitute": null,
"longitude": null,
"cardiacSteps": null
}
]
The problem is, I would like to, on the array that is represented by the second ID, return a error message, as there is no data in it. Something like this:
[
{
"id": 1,
"uuid": "@B7304",
"username": "blabla",
"hearthBeat": 30,
"status": "well",
"date": "13/05/1333",
"latitute": 30,
"longitude": 40,
"cardiacSteps": 50
},
{
"uuid": @B7304,
"message": "This user has no data"
}
]
My code is as follows:
@GetMapping("/monitored")
@PreAuthorize("hasRole('USER') and hasRole('RESPONSIBLE')")
public Object returnMonitored() {
Authentication auth = SecurityContextHolder.getContext().getAuthentication();
Optional<User> username = userRepository.findByUsername(auth.getName());
List<Dependency> uuids = dependencyRepository.returnAllUserUuid(Objects.requireNonNull(username.orElse(null)).getUuid());
List<Health> health = new ArrayList<>();
uuids.forEach(uuid -> {
if (userRepository.existsByUuid(uuid.getUserUuid()) && healthRepository.existsByUuid(uuid.getUserUuid())) {
if(healthRepository.existsByUuid(uuid.getUserUuid()) && healthRepository.isRegistered(uuid.getUserUuid())) {
List<Health> healthList = healthRepository.returnAllUserUuid(uuid.getUserUuid());
health.addAll(healthList);
}
}
}
);
if(health == null || health.isEmpty()) {
return ResponseEntity.ok().body(new MessageVo("You're not responsible for any user ;) "));
}
return health;
}
With this, I can't seem to override the specific response, as it is an List of the Entity(Health).
Thanks for your help!
CodePudding user response:
What you want to do is a really bad idea since one would expect all elements in a JSON array to have the same attributes.
You should return what you are returning now with all the nulls and return your "message" in status.
[
{
"id": 1,
"uuid": "@B7304",
"username": "blabla",
"hearthBeat": 30,
"status": "well",
"date": "13/05/1333",
"latitute": 30,
"longitude": 40,
"cardiacSteps": 50
},
{
"id": 2,
"uuid": "@B7304",
"username": "blabla",
"hearthBeat": null,
"status": "This user has no data",
"date": null,
"latitute": null,
"longitude": null,
"cardiacSteps": null
}
]
I would also recommend adding a "statusCode" attribute where you can return a numerical code and have "status" represent the statusCode description since doing string compares on status isn't a good idea either.
CodePudding user response:
In your health class, add the @JsonInclude(Include.NON_NULL), values that are null will not be shown on your response. Take note to use the boxed type and not the primitive type.
@JsonInclude(Include.NON_NULL)
public class Health {
Integer id;
String uuid;
...
String message;
}