Field not showing in Mongoose aggregation

Question

I\'m trying to get a count of all distinct departments. I\'d like the results to contain the deptType, deptName and the count. The grouping works, and results show deptType and

Answer 1

Sorry guys that was silly:

(...)
$group: {
    _id : { dType : "$departments.deptType", 
            dName : "$departments.deptName" 
          },
   dCount: { $sum: 1 },
}
(...)