MongoDB aggregation $match with $or - node.js

Question

Is there a way to search a mongodb database using an array of objects as search arguments?
Lets say I have the following search preferences:
preferences = [{
product: "PRODUCT_A",
minqty: 5,
maxqty: 50
},
{
product: "PRODUCT_B",
minqty: 100,
maxqty: 500
}
]
In my database I have Jobs with the following structure:
{
jobName: "job name",
items: [{
product: "PRODUCT_A"
qty: 25
},
{
product: "PRODUCT_F"
qty: 300
}
]
}
I would like to query the database using preferences and returning any jobs that match at least one of the criteria's.
ATTEMPT 1:
I managed to use all my preferences as filters, but $match is cumulative, the way it's written it works like && in javascript. My goal is to have "match THIS || match THAT".
let pipeline = [];
preferences.map((item) => {
let search = {
product: item.product,
quantity: { $gte: item.minqty, $lte: item.maxqty },
};
return pipeline.push({
$match: {
items: {
$elemMatch: search,
},
},
});
});
const jobs = await Job.aggregate(pipeline);
ATTEMPS 2 (SUCCESS):
let search = [];
preferences.map((item, index) => {
let arguments = {
product: item.product,
quantity: { $gte: item.minqty, $lte: item.maxqty },
};
search.push(arguments);
});
let pipeline = [
{
$match: {
items: {
$elemMatch: {
$or: search,
},
},
},
},
];
const jobs = await Job.aggregate(pipeline);

Answer 1

I think you can create your search object by reducing the preferences array and use the $or operator. When you map the preferences array it is returning an array that will perform and operation. you need an object like -
{
$or: [{product1, quantity1}, {product2, quantity2}]
}
I guess you got my point.