How to bind JSON hasmasp to the @RequestBody in spring boot

Question

I want to bind this JSON structure { "male": { "id": "0001", "name": "Emma", "pet": "dog" }, "female": { "id": "0001", "name": "Cilia", "pet": "cat" } } to java HashMap data structure using spring boot @RequestBody annotation. However, spring boot is not able to bind it, but if i receive the json as string and bind it manually to the hashmap it will succeed. Her is the HashMap

public class Tickets {

    private HashMap<String, PeopleType> peopleTypes = new HashMap();
}

public class PeopleType {

    private String id;

    private String name;

    private String pet;
}

Here is the controller

@PostMapping("/url")
public ResponseEntity bookTickets(@RequestBody Tickets tickets, HttpSession session) {
...
}

I removed all Getters and Setters for brevity

Answer 1

Try this:

@PostMapping("/url")
public ResponseEntity bookTickets(@RequestBody Map<String, PeopleType> peopleTypes, HttpSession session) {
    Tickets tickets = new Tickets();
    tickets.setPeopleTypes(peopleTypes);
    ...
}

Or try this:

public class Tickets {
    private Map<String, PeopleType> peopleTypes = new HashMap<>();

    @JsonAnySetter
    public void addPeopleType(String type, PeopleType peopleType) {
        peopleTypes.put(type, peopleType);
    }
}

@PostMapping("/url")
public ResponseEntity bookTickets(@RequestBody Tickets tickets, HttpSession session) {
    ...
}