how to group in mongoDB and return all fields in result

Question

I am using aggregate method in mongoDB to group but when I use $group it returns the only field which I used to group. I have tried $project but it

Answer 1

You can use this query

db.col.aggregate([
                        {"$group" : {"_id" : "$name","data" : {"$first" : "$$ROOT"}}},
                        {"$project" : {
                            "tags" : "$data.tags",
                            "name" : "$data.name",
                            "rating" : "$data.rating",
                            "_id" : "$data._id"
                            }
                        }])