How to update multiple documents in mongodb using Golang [duplicate] - mongodb

Question

This question already has answers here:
How would I update multiple records based on different key in Mongo in one query?
(1 answer)
MongoDB update array of documents and replace by an array of replacement documents
(1 answer)
Closed last month.
I am trying to update a collection of multiple data in MongoDB using Golang at the same time, instead, it updates only one record, I'm using a for loop to perform this action
My filter code
if len(list_phone) > 1 {
for i := 0; i < len(list_phone); i++ {
update_userPhone, err := helpers.UpdatePhone(list_phone[i]["phone"].(string), list_phone[i]["email"].(string))
if err != nil {
w.WriteHeader(http.StatusInternalServerError)
w.Write([]byte(`{"status:":"error", "error": true, "msg": "Something went wrong" }`))
return
}
json.NewEncoder(w).Encode(update_userPhone)
return
}
}
my update function
func UpdatePhone(phone string, email string) (bool, error) {
userCollection, _ := GetDBCollection("users")
ctx, cancel := context.WithTimeout(context.Background(), 100*time.Second)
id := email
filter := bson.M{"email": id}
update := bson.M{"$set": bson.M{"phone": phone}}
_, err := userCollection.UpdateOne(ctx, filter, update)
defer cancel()
if err != nil {
return false, err
}
return true, err
}