How to get pretty formatted ResponseEntity for Custom Response Model? - json

Question

When I am returning String for ResponseEntity it shows pretty formatted json in Postman but when I am returning CustomModel for ResponseEntity, it shows non formatted json.
Code 1:
#PostMapping("/json1")
ResponseEntity<String> getData1() {
String result = "{\"name\":\"Alex\"}";
return ResponseEntity.ok().body(result);
}
Postman output 1:
{
"name": "Alex"
}
Code 2:
class RestResp {
public ResponseEntity<?> data = null;
}
#PostMapping("/json2")
ResponseEntity<RestResp> getData2() {
String result = "{\"name\":\"Alex\"}";
RestResp response = new RestResp();
response.data = ResponseEntity.ok().body(result);
return ResponseEntity.ok().body(response);
}
Postman output 2:
{
"data": {
"headers": {},
"body": "{\"name\":\"Alex\"}",
"statusCode": "OK",
"statusCodeValue": 200
}
}
Why am I getting "{\"name\":\"Alex\"}" non formatted? How can I get the properly formatted json in Postman?

Answer 1

You can do it in many ways.
With dedicated object:
class Person {
private String name;
public Person(String name) {
this.name = name;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
and
RestResp response = new RestResp();
response.data = ResponseEntity.ok().body(new Person("Alex"));
return ResponseEntity.ok().body(response);
Map it to json:
String result = "{\"name\":\"Alex\"}";
ObjectMapper mapper = new ObjectMapper();
JsonNode node = mapper.readTree(result);
RestResp response = new RestResp();
response.data = ResponseEntity.ok().body(node);
return ResponseEntity.ok().body(response);
Or just use a map:
Map<String,Object> map = new HashMap<>();
map.put("name", "Alex");
RestResp response = new RestResp();
response.data = ResponseEntity.ok().body(map);
return ResponseEntity.ok().body(response);