mongodb - Get all records with specified properties between a certain date range -

i passing in 2 dates formatted mm-dd-yyyy date range. need query records within range , include specified fields. i've had no luck.

part of record in mongo:

{     "_id": "some id",     "date": {         "$date": "2015-06-26t13:02:12.121z"     }, 

query:

var start = '09-07-2015'   var end = '09-14-2015' 

if do:

    var query = order.find({         date : {             $lt : end,             $gt : start         }     }); 

i full document within week ranges expected. however, want specify fields return rather full document. i've tried using grouping , project specify fields:

    var query = order.aggregate(         {             $match :             {                 date: {                     $gte: start,                     $lt: end                 }             },             $group:             {                 cust_id: '$request.headers.customer_id',                 wholesaler_id: '$request.headers.wholesalerid'             }         }     ); 

likewise: i've tried using project results want. thought maybe won't match on date string 09-07-2015, included iso date directly. still no luck... query comes undefined or empty:

    var query = order.aggregate(         {             $project:             {                 date: 'date',                 cust_id: '$request.headers.custid',                 wholesaler_id: '$request.headers.wholesalerid'             }         },         {             $match :             {                 date: {                     $gte: "2014-12-09t21:02:56.872z",                     $lt: "2015-12-09t21:02:56.872z"                 }             }         }     ); 

var query = order.find({     date : {         $lt : end,         $gt : start     }}, {cust_id:1, wholeseller_id:1} ); 

this work.

i tested using robomongo

db.getcollection('offerdb').find({time_posted:{$gt: '2015-10-21t21:40:04+05:30', $lte:'2015-12-14t05:53:14+05:30'}},{_id:1, merchant_id:1}) 

works charm me.