Mongoose: aggregate query to return an array of strings instead to array of objects

Question

I want to make the same operation like this to return an array of strings:

model.find().distinct("some_field")

How it's possible to take the same result using aggregation function?

Zeeshan Ahmad · Accepted Answer · 2021-10-14 13:22:28Z

2

You can use below code to get all unique some_field using aggregate:

model.aggregate([
    {
        $group:{
           _id: null,
           some_field: { $addToSet: '$some_field' }
        }
    }
]);

answered Oct 14, 2021 at 13:22

Zeeshan Ahmad

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