main.go

package main

import (
	"context"
	"log"

	"go.mongodb.org/mongo-driver/bson"
	"go.mongodb.org/mongo-driver/mongo"
	"go.mongodb.org/mongo-driver/mongo/options"
)

func main() {
	// Set client options
	clientOptions := options.Client().ApplyURI("mongodb://localhost:27017/test")

	// Connect to MongoDB
	client, err := mongo.Connect(context.TODO(), clientOptions)
	if err != nil {
		log.Fatal(err)
	}

	coll := client.Database("test").Collection("foo")

	result, err := coll.InsertOne(context.Background(), bson.M{"my_data": []byte("abcd")})
	if err != nil {
		log.Fatal(err)
	}

	var document interface{}
	err = coll.FindOne(context.Background(), bson.M{"_id": result.InsertedID}).Decode(&document)
	if err != nil {
		log.Fatal(err)
	}

	log.Printf("%+v", document)

}