Jolt transform expand dot as a JSON Object - json

Question

Is there a way in Jolt to convert a dot operator in JSON value to a nested JSON object while transforming the input ?
For example in the below json I would like target_property of id=2 to be converted to a json object as shown in the expected O/P. Any help is appreciated
Input:
{
"name": "Test",
"email": "Test",
"form_id": "123",
"field_list": [
{
"id": 1,
"value": "Test Subject",
"is_custom_field": false,
"target_property": "subject"
},
{
"id": 2,
"value": "Test Description",
"is_custom_field": false,
"target_property": "comment.body"
}
]
}
Jolt Transform tried
[
{
"operation": "shift",
"spec": {
"form_id": "ticket.ticket_form_id",
"name": "ticket.requester.name",
"email": "ticket.requester.email",
"field_list": {
"*": {
"is_custom_field": {
"true": {
"#(2,target_property)": "ticket.custom_fields[&3].id",
"#(2,value)": "ticket.custom_fields[&3].value"
},
"*": {
"#(2,value)": "ticket.#(3,target_property)"
}
}
}
}
}
}
]
Current Output
{
"ticket" : {
"ticket_form_id" : "123",
"requester" : {
"name" : "Test",
"email" : "Test"
},
"subject" : "Test Subject",
"comment.body" : "Test Description"
}
}
Expected Output
{
"ticket": {
"ticket_form_id": "123",
"requester": {
"name": "Test",
"email": "Test"
},
"subject": "Test Subject",
"comment": {
"body": "Test Description"
}
}
}

Answer 1

You can add another shift transformation spec such that
{
"operation": "shift",
"spec": {
"*": {
"*": "&1.&",
"*.*": "&1.&(0,1).&(0,2)"
}
}
}
where
"*.*" represents the attributes having a dot within them. the zeroes
within &(0,..) expressions stand for the current level
1,2 as second arguments of them represent the first and the second pieces of the splitted keys (in this case comment.body)
respectively.