动态匹配查询MongoDB

Question

How would I write one of these expressions dynamically with a variable in nodejs or typescript?

$match: {
          date: '9-8-2019',
          "info.tag": "Test"
        }

or

$match: { 
    $expr: {
      $and:[ { $eq: ["$price_id", "$$id"]}, { $eq: ["$tag", "Test"] }]
    }
}

Answer 1

Try with the help of this

$match: {
id: req.body.id,
$and: [{
    createdAt: {
        $gte: new Date(start)
    }
}, {
    createdAt: {
        $lte: new Date(end)
    }
}]

},