NodeJS MongoDB: Querying ISO Date - node.js

Question

I have a collection of ISO dates stored in MongoDB as strings, like so:
{ "date": "2014-12-12T03:33:33.333Z" },
{ "date": "2014-12-13T03:33:33.333Z" }
In the console, I can query these perfectly using
{ "date": ISODate("2014-12-12T03:44:00.000Z") }
However, I'm using the NodeJS driver, and I cannot use ISODate. I have found several questions pertaining to this problem on here, but none of the proposed solutions seem to work. For instance:
// These does not find any matches
db.find({ "date": new Date("2014-12-12T03:44:00.000Z") })
db.find({ "date": { '$eq': '2014-12-12T03:44:00.000Z' } })
db.find({ "date": { '$eq': new Date('2014-12-12T03:44:00.000Z') } })
//This throws an error stating $date is not an operator
db.find({ "date": { '$date': '2014-12-12T03:44:00.000Z' } })
Why are these queries failing?
Edit: Here's another sample, straight from the database:
{
"_id": "5a7e88f34b5916723589183f",
"date": "2014-12-12T03:42:00.000Z",
"granularity": 180
}
EDIT 2: This query produces the following error MongoError: $dateFromString requires that 'dateString' be a string, found: date with value 2014-12-12T03:44:00.000Z
async loadCandle(date, granularity) {
date = date + ''; //Aded to ensure date is a string, but still get the error.
var candle = await this.data.collection('dates').findOne(
{ $expr :
{$eq :
[
{$dateFromString : {dateString : "$date"}},
new Date("2014-12-12T03:33:33.333Z") //Normally would pass in the `date` variable here
]
} });

Answer 1

because $date is not an operator
you need to use $dateFromString to convert string date to ISODate for comparison
db.datez.find(
{$expr :
{$eq :
[
{$dateFromString : {dateString : "$date"}},
new Date("2014-12-12T03:33:33.333Z")
]
}
}
)
using aggregation
db.datez.aggregate([
{$match :
{$expr :
{$eq :
[
{$dateFromString : {dateString : "$date"}},
new Date("2014-12-12T03:33:33.333Z")
]
}
}
}
])
collection
> db.datez.find()
{ "_id" : ObjectId("5a7e795e80aae386f73cf0fe"), "date" : "2014-12-12T03:33:33.333Z" }
{ "_id" : ObjectId("5a7e795e80aae386f73cf0ff"), "date" : "2014-12-13T03:33:33.333Z" }
>
result
> db.datez.find({$expr : {$eq : [{$dateFromString : {dateString : "$date"}}, new Date("2014-12-12T03:33:33.333Z")]}})
{ "_id" : ObjectId("5a7e795e80aae386f73cf0fe"), "date" : "2014-12-12T03:33:33.333Z" }

Answer 2

You can use $dateToString operator which generate the string date of any specified format, which can be compared later.
For string comparison of date, input format should be YYYY-MM-DD, any other format would get fail for ranges date queries
Let me explain through example:
Here is my collection in mongoDb :
{
"_id" : ObjectId("5f2d0a0c632ec022e08c3191"),
"date" : ISODate("2020-07-12T00:00:00Z")
}
{
"_id" : ObjectId("5f2d0a12632ec022e08c3192"),
"date" : ISODate("2020-07-13T00:00:00Z")
}
Now the query to be fired from Node for comparison of such stored ISODates is as follow
db.collection.aggregate(
[
{
$addFields: {
formattedDate: { // An extra field "formattedDate" is added in each document which can be compared later through pipeline using $match
$dateToString: {
format: "%Y-%m-%d",
date: "$date" // in "$date" date is variable from db
}
}
}
},
{
$match: {
formattedDate: {
$eq: "2020-07-12" // here you can provide your input date yyyy-mm-dd
}
}
}
]
)
So for above query you will get output as
{
"_id" : ObjectId("5f2d0a0c632ec022e08c3191"),
"date" : ISODate("2020-07-12T00:00:00Z"),
"formattedDate" : "2020-07-12"
}
Hope this will help you or somebody else!