using $and with $match in mongodb

Question

I am trying to use the following query in MongoDB but it is not working.

db.test.aggregate(
$match: {$and: [type: {$in: [\"TOYS\"]}, type: {$nin: [\"BARBIE\"         


        

Answer 1

{
  $match: {
    $or:[
      {'sender':sender, 'recipient':recipient},
      {'recipient':sender,'sender':recipient}
    ]
  }
}

using $or