Conditional shift within array with Jolt - json

Question

Thanks in advance for reading this one!
I have the following JSON:
{
"transactions": [
{
"type": "wd",
"charged": "-1000.00",
"credited": "0"
},
{
"type": "dep",
"charged": "0",
"credited": "1000.00"
}
]
}
What I need is to keep either charged or credited, whichever one is not 0. My spec below almost has it working
[
{
"operation": "shift",
"spec": {
"transactions": {
"*": {
"type": "settled.[&1].transType",
"charged": {
"0": {
"#(2,credited)": "settled.[&1].cash_movement"
}
},
"credited": {
"0": {
"#(2,charged)": "settled.[&1].cash_movement"
}
}
}
}
}
}
]
What I want to end up with is:
{
"settled": [
{
"transType": "wd",
"cash_movement": "-1000.00"
},
{
"transType": "dep",
"cash_movement": "1000.00"
}
]
}
But what I end up with is this instead:
{
"settled": [
{
"transType": "wd",
"cash_movement": ["-1000.00","1000.00"]
},
{
"transType": "dep"
}
]
}
I know I'm close but for the life of me, I haven't been able to tweak it to get it just right. Can someone set me in the right direction please?

Answer 1

Just need to convert the identifiers [&1] to [&3] except for the first one such as
[
{
"operation": "shift",
"spec": {
"transactions": {
"*": {
"type": "settled[&1].transType",
"charged": {
"0": {
"#(2,credited)": "settled[&3].cash_movement"
}
},
"credited": {
"0": {
"#(2,charged)": "settled[&3].cash_movement"
}
}
}
}
}
}
]
since twice more going the tree up needed for those innermost pairs in order to reach the same level with the first [&1]. Btw, the dots between settled and [&.]s are redundant to be used.
the demo on the site http://jolt-demo.appspot.com/ is