com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize instance of `Todo` out of START_ARRAY token - json-deserialization

Question

I have this json which I converted to a POJO
The JSON converted to POJO file
[
{
"postId": 81,
"id": 401,
"name": "cum voluptate sint voluptas veritatis",
"email": "Vella.Mayer#colten.net",
"body": "sit delectus recusandae qui\net cupiditate sed ipsum culpa et fugiat ab\nillo dignissimos quo est repellat dolorum neque\nvoluptates sed sapiente ab aut rerum enim sint voluptatum"
},
{
"postId": 81,
"id": 403,
"name": "cum voluptate sint voluptas veritatis",
"email": "Vella.Mayer#colten.net",
"body": "sit delectus recusandae qui\net cupiditate sed ipsum culpa et fugiat ab\nillo dignissimos quo est repellat dolorum neque\nvoluptates sed sapiente ab aut rerum enim sint voluptatum"
}
]
This is the POJO class I converted it into
public class TodoItem{
private int id;
private boolean completed;
private String title;
private int userId;
I tried using todo to validate the response that it of the type of the class but always get this error.
Todo todo = response.getBody().as(Todo.class);
Assert.assertTrue(response.statusCode() == 200);
Error
com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize instance of `io.christdoes.pojo.todo.Todo` out of START_ARRAY token
at [Source: (String)"[

Answer 1

There are 2 things you did wrong:
The POJO that you're matching
The way you map (Array cannot map to one single object)
It would be
List<TodoItem> todoItems = response.as(new TypeRef<>() {});
POJO (I use lombok to generate getters/setters)
import lombok.Data;
#Data
public class TodoItem{
private int postId;
private int id;
private String name;
private String email;
private String body;
}