Include array to mongoDB query with group() - node.js

Question

I need to add the paramater sector as an array in the group () statement.
I have the following code:
await Escaneado.aggregate([
{
$match: {
$and: [
{ "gestion": id },
{ "disponible": true }
]
},
},
{
$group: {
_id: {
code:"$codigo",
quantityTarget:"$cantidadObjetivo",
},
quantityTotalScanded : { $sum: "$cantidad" }
}
},
{
$addFields:{
difference:{ $subtract: ["$quantityTotalScanded", "$_id.quantityTarget"]}
}
},
])
output:
{
"ok": true,
"escaneadosDB": [
{
"_id": {
"code": "0V3011123A00",
"quantityTarget": 36
},
"quantityTotalScanded": 36,
"difference": 0
},
{
"_id": {
"code": "0V3011123B00",
"quantityTarget": 36
},
"quantityTotalScanded": 4,
"difference": -32
},
{
"_id": {
"code": "0V3012121D00",
"quantityTarget": 56
},
"quantityTotalScanded": 56,
"difference": 0
}
]}
output expected:
{
"ok": true,
"escaneadosDB": [
{
"_id": {
"code": "0V3011123A00",
"quantityTarget": 36,
"sector": ["A", "B", "C"]
},
"quantityTotalScanded": 36,
"difference": 0
},
{
"_id": {
"code": "0V3011123B00",
"quantityTarget": 36,
"sector": ["A"]
},
"quantityTotalScanded": 4,
"difference": -32
},
{
"_id": {
"code": "0V3012121D00",
"quantityTarget": 56,
"sector": ["A", "B"]
},
"quantityTotalScanded": 56,
"difference": 0
}
]}
I think I can add it as an array, but i do not know how implement! .
The sectors are different parameters, therefore I cannot use it as "_id". I need total quantity and the sectors in the query.
How could I do this with mongo?

Answer 1

this worked for me:
add this in group() sentence:
sectors: { $push: { sector: "$sector" } }
all code:
await Escaneado.aggregate([
{
$match: {
$and: [
{ "gestion": id },
{ "disponible": true }
]
},
},
{
$group: {
_id: {
code:"$codigo",
quantityTarget:"$cantidadObjetivo",
},
quantityTotalScanded : { $sum: "$cantidad" },
sectors: { $push: { sector: "$sector" } }
}
},
{
$addFields:{
difference:{ $subtract: ["$quantityTotalScanded", "$_id.quantityTarget"]}
}
},
{$sort: {"cantidadTotal": -1}},