How to update an array, by inserting an element at the first position - mongodb

Question

I want to update a document by adding a new element at the first position, in an array.
What I'm actually doing :
val updateRequest = myCollection.findOneAndUpdate(and(equal("site_id", new ObjectId(siteId)),and(equal("image_name", imageName))),
addToSet("url_history", urlHistory))
The result :
{
"_id" : ObjectId("5e297ea0c7ede90a7ae7586e"),
"image_name" : "test.jpg",
"url_history" : [
{
"date" : ISODate("2020-02-08T10:43:47.127Z"),
"url" : "No image url"
},
{
"date" : ISODate("2020-02-11T10:43:47.127Z"),
"url" : "test.jpg"
}
]
}
The desired result :
{
"_id" : ObjectId("5e297ea0c7ede90a7ae7586e"),
"image_name" : "test.jpg",
"url_history" : [
{
"date" : ISODate("2020-02-11T10:43:47.127Z"),
"url" : "test.jpg"
},
{
"date" : ISODate("2020-02-08T10:43:47.127Z"),
"url" : "No image url"
}
]
}

Answer 1

Have you tried the "$position" operator? Take a look https://docs.mongodb.com/manual/reference/operator/update/position/
Using mongoose would be like this:
const schema = Schema({ nums: [Number] });
const Model = mongoose.model('Test', schema);
const doc = await Model.create({ nums: [3, 4] });
doc.nums.push(5); // Add 5 to the end of the array
await doc.save();
// You can also pass an object with `$each` as the
// first parameter to use MongoDB's `$position`
doc.nums.push({
$each: [1, 2],
$position: 0
});
doc.nums; // [1, 2, 3, 4, 5]
from mongoose docs
And do you really need to insert it in the first position? Maybe is a good idea to preserve the array order and when you fetch its values you can just order by the way you desire, what do you think about it?

Answer 2

I finally found a solution !
Here it is :
val updateRequest = myCollection.findOneAndUpdate(and(equal("site_id", new ObjectId(siteId)),and(equal("image_name", imageName))),
pushEach("url_history", PushOptions().position(0), urlHistory))
I used the PushOptions.
Hope it helps.
Source :
https://mongodb.github.io/mongo-scala-driver/2.6/scaladoc/org/mongodb/scala/model/Updates$.html