I have a RestController which looks like this
@RequestMapping(value = "/post", method = RequestMethod.POST, consumes = MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<?> test(@RequestBody User user) {
System.out.println(user);
return ResponseEntity.ok(user);
}
And the User model which looks like this
class User {
@NotBlank
private String name;
private String city;
private String state;
}
I have a requirement wherein users can pass some extra additional attribute(s) in the input JSON, something like this
{
"name": "abc",
"city": "xyz",
"state": "pqr",
"zip":"765234",
"country": "india"
}
'zip' and 'country' are the additional attributes in the input JSON.
Is there any way in Spring Boot we can get these additional attributes in the Request Body ?
I know a way wherein I can use either a "Map" or "JsonNode" or "HttpEntity" as Requestbody parameter. But I don't want to use these classes as I would loose the javax.validation that can be used inside "User" model object.
Extend your User DTO with a Map<String, String> and create a setter which is annotated with @JsonAnySetter. For all unknown properties this method will be called.
class User {
private final Map<String, Object> details= new HashMap<>);
@NotBlank
private String name;
private String city;
private String state;
@JsonAnySetter
public void addDetail(String key, Object value) {
this.details.add(key, value);
}
public Map<String, Object> getDetails() { return this.details; }
}
Now you can obtain everything else through the getDetails().