How To Create a 2dsphere index on geojson object field

[ganeshagrawal-fl]

I am trying these 2 ways to create a 2dsphere index on a collection, but both failed. Both created a regular index.
The first creates a compound index and the second creates a regular index.

import (
	"context"

	"github.com/paulmach/orb/geojson"
	"github.com/qiniu/qmgo/options"
	"go.mongodb.org/mongo-driver/bson"
	"go.mongodb.org/mongo-driver/mongo"
)

// StoreGeoJSONCollection is the collection name for the store geojson model
const StoreGeoJSONCollection = "stores_geojson"

// StoreGeoJSON represents the store geojson model
type StoreGeoJSON struct {
	Model `bson:",inline"`

	StoreId           ObjectID                   `bson:"store_id"            json:"store_id"            validate:"required"`
	StoreName         string                     `bson:"store_name"          json:"store_name"          validate:"required"`
	Title             string                     `bson:"title"               json:"title"               validate:"required"`
	Geojson           *geojson.FeatureCollection `bson:"geojson"             json:"geojson"             validate:"required"`
	DeliveryFee       float64                    `bson:"delivery_fee"        json:"delivery_fee"`
	MinimumOrderValue float64                    `bson:"minimum_order_value" json:"minimum_order_value"`
	DeliveryProductId *string                    `bson:"delivery_product_id" json:"delivery_product_id"`
}

// CollectionName returns the collection name for the store geojson model
func (StoreGeoJSON) CollectionName() string {
	return StoreGeoJSONCollection
}

// Indexes returns the indexes for the store geojson model
func (StoreGeoJSON) Indexes() []options.IndexModel {
	return []options.IndexModel{
		{
			Key:          []string{"geojson.features.geometry", "2dsphere"},
			IndexOptions: Index().SetSphereVersion(3),
		},
		{
			Key:          []string{"geojson.features.geometry"},
			IndexOptions: Index().SetSphereVersion(3),
		},
	}
}

---

Indexes Screenshot

Please share the correct way to create 2dsphere indexes using qmgo.

[jiangz222]

Hi, please share your complete codes to create index!