package main import "go.mongodb.org/mongo-driver/bson/primitive" type Student struct { ID primitive.ObjectID `bson:"_id" json:"id,omitempty"` Name string `json:"name,omitempty"` Sex string `json:"sex,omitempty"` } type Booking struct { // booking fields ID interface{} `json:"_id" bson:"_id,omitempty"` Uid int `json:"uid,omitempty" bson:"uid,omitempty"` IndustryId int `json:"industry_id,omitempty" bson:"industry_id,omitempty"` LocationId int `json:"location_id,omitempty" bson:"location_id,omitempty"` BaseLocationId int `json:"base_location_id,omitempty" bson:"base_location_id,omitempty"` }