How to group data in go using mgo?

Question

MongoDB

Good day, comrades! There was a problem with mGo.
I have the following entities:

type Record struct {
  ID                      bson.ObjectId `bson:"_id,omitempty"`
  EndPoint                  string             `bson:"EndPoint"`
  ReceivedTime    time.Time      `bson:"ReceivedTime"`
}

type Message struct {
  ID                      bson.ObjectId `bson:"_id,omitempty"`
  EndPoint            string             `bson:"EndPoint"`
  ReceivedTime    time.Time      `bson:"ReceivedTime"`
}

How can I make a request to mongo using mgo, so that I end up with this structure?

type MessageRecordCount struct {
  EndPoint            string   `json:"EndPoint"`
  MessageCount   int        `json:"MessageCount"` 
  RecordCount      int        `json:"RecordCount"`
}

I need at least a tip where to look, since I'm not very good at monge and go yet.
Thanks in advance for your replies!

Answer 1

Algorithm:

1. Fetching from MongoDB
   
2. You add data from other structures to the MessageRecordCount structure
   
3. I understand that RecordCount is the number of records, then you need to make another request to MongoDB and put the result in your structure
   
4. ...
   
5. Profit!