How to identify matching values to create sequence numbers?
Looking for a function to help add sequence numbers to a json array. End goal is to apply a sequence to matching values, starting with 01, subsequent values get a sequence of 02…03… 04 etc. I could do this in a mapper, or in apache velocity as part of a soap execute if possible to loop through, and apply therein.
What I have now:
[
{
“Records”: [
{
“Award”: [
“Award_A”,
“Award_C”,
“Award_A”,
“Award_B”,
“Award_C”
]
}
]
}
]
Desired output:
[
{
“Records”: [
{
“Award”: [
“Award_A”,
“Award_C”,
“Award_A”,
“Award_B”,
“Award_C”
],
“Sequence”: [
“01”,
“01”,
“02”,
“01”,
“02”
]
}
]
}
]
@acesario , you can also just add
[0]after @viktor_n’s expression.$Records.map(record => record.Award.map((x, index) => record.Award.slice(0, index + 1).filter(y => y == x).length))[0]And if you really need the “0” you can try and add
.map(val => "0" + val)So full expression is:
$Records.map(record => record.Award.map((x, index) => record.Award.slice(0, index + 1).filter(y => y == x).length).map(val => "0" + val))[0]
