Spring - Ignore JSON properties in request but not in response - json

Question

This is a valid Entry object retrieved from a GET request http://domain/entry/{id}:
{
"id": 1,
"description": "ML Books",
"dueDate": "2017-06-10",
"paymentDate": "2017-06-10",
"note": "Distribution de lucros",
"value": 6500,
"type": "INCOME",
"category": {
"id": 2,
"name": "Food"
},
"person": {
"id": 3,
"name": "User",
"active": true,
"address": {
// properties suppressed for better reading
}
}
}
In a POST request I want to save the foreing objects Category and Person just sending the respective Id's, like this:
{
"description": "NEW ENTRY",
"dueDate": "2019-06-22",
"paymentDate": "2019-06-22",
"note": "Coloured pens",
"value": 10,
"type": "INCOME",
"categoryId": 5,
"personId": 5
}
To save the objects without Spring saying the person and category objects were null, I've added #JsonIgnore to them in the model, and followed this thread.
It partially worked:
now it saves de object just with the Id
but not retrieves the object in GET requests
Now, when retrieving a Entry with the same GET request http://domain/entry/{id}:
{
"id": 23,
"description": "Pens",
"dueDate": "2019-06-22",
"paymentDate": "2019-06-22",
"note": "Coloured pens",
"value": 10,
"type": "INCOME",
"categoryId": null, // It supposed to bring the entire object
"personId": null // It supposed to bring the entire object
}
PS: categoryId and personId are marked with #Transient, that's why it are null.
So as the title states, I want to ignore the properties Category and Person just in POST request (saving them), not in GET requests (retrieving them).
Any help will be welcome.
Thanks in advance

Answer 1

Jackson have added READ_ONLY and WRITE_ONLY annotation arguments for JsonProperty. So you could also do something like:
#JsonProperty(access = JsonProperty.Access.READ_ONLY)
#Id
#GeneratedValue
private Long id;