MongoDB: Only fetch documents created in the last 24hrs?

Question

I want to limit a query I\'m making to only look in documents that were created in the past 24 hrs.

What is the best way to structure this query? How do I go about

Answer 1

If you're not using any other indexes and are using the default ObjectID as your _id, you can do the following:

var ObjectID = require('mongodb').ObjectID

db.collection.find({
  _id: {
    $gt: ObjectID.createFromTime(Date.now() / 1000 - 24*60*60)
  }
}, callback)

Answer 2

Add createdAt field, index it, then query

db.getCollection("COLLECTION_NAME").find({"createdAt":{$gt:new Date(Date.now() - 24*60*60 * 1000)}})

This will return all records older then 86400 seconds.

Answer 3

"TIME" is field which store timestamp

db.your_collection_name.find({"TIME":{'$lt': new Date(),'$gte':new Date(new Date().setDate(new Date().getDate()-1))}},{}).count();

Answer 4

first of all it would really help if you will provide people with a schema of your collection.

But just because it already 3 hours passed and no one replied I will try:

Suppose you have you entry and it has a field createdAt which is an ISODate:

{
somefield: "test",
createdAt: ISODate("2012-08-13T04:00:00Z")
}

So what you need to do is to put an index on this field

db.yourColl.ensureIndex({createdAt:1});

Then you get your current time in node.js substitute your 24 hours and get your value of start. (As far as I know there is no analog of NOW in mongdb. Right me someone if I am wrong.)

db.yourColl.find({
   createdAt: {
     $gte: start
   }
});

Answer 5

Hope this helps someone. I'm using pymongo to query last 24 hours of data. In my case I had to convert the current time into BSON timestamp.

First I had to import Bson timestamp:

from bson.timestamp import Timestamp

Then in my search query I did the following:

yesterday  = datetime.datetime.now() - datetime.timedelta(days=1)

findQuery = {
    "unix": {
        "$gte": Timestamp(int(yesterday.strftime("%s")),0)
     }
}

Answer 6

Use this in mongoose

let ObjectId    = require('mongodb').ObjectID;

Property.find({
    _id: {
        $gt: ObjectId.createFromTime(Date.now() / 1000 - 24 * 60 * 60)
    }
}, (err, result) => {
    console.log(err || result);
});