how to use aggregate function in meteor

Question

I\'m working on the following document

{
\"_id\" : 12,
\"firstName\" : \"wer\",
\"People\" : [ 
    {
        \"uuid\" : \"123\",
        \"name\" : \"sugun\         


        

Answer 1

I used the meteorhacks:aggregate package. It works only on the server side.

meteor add meteorhacks:aggregate

MyCollection.aggregate({ 
  $match: { 
    propertyToQuery: 'valueForProperty' 
  }, { 
    $group: {
      _id: '$propertyToGroupBy',
      result: { $operation: '$propertyToPerformOperationOn' }
    }
});

https://github.com/meteorhacks/meteor-aggregate https://themeteorchef.com/snippets/aggregations-in-mongodb/