MongoDB_BulkWrite

using MongoDB.Bson;
using MongoDB.Bson.IO;
using MongoDB.Bson.Serialization;
using MongoDB.Bson.Serialization.Attributes;
using MongoDB.Driver;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace M101DotNet
{
    class Program
    {
        static void Main(string[] args)
        {
            MainAsync(args).GetAwaiter().GetResult();
            Console.WriteLine("Press enter");
            Console.ReadLine();

        }

        static async Task MainAsync(string[] args)
        {
            var client = new MongoClient();
            var db = client.GetDatabase("Phucdb");
            var col = db.GetCollection<BsonDocument>("widgets");
            // Drop r Insert
            await db.DropCollectionAsync("widgets");
            var docs = Enumerable.Range(0, 10).Select(i => new BsonDocument("_id",i).Add("x",i));
            await col.InsertManyAsync(docs);
            //BulkWrite
            // Các lệnh trong BulkWrite thực thi đồng thời ko hàng đợi
            var result = col.BulkWriteAsync(new WriteModel<BsonDocument>[]
            {
                new DeleteOneModel<BsonDocument>("{x:5}"),
                new DeleteOneModel<BsonDocument>("{_id:7}"),
                new UpdateManyModel<BsonDocument>("{x:{$lt:8}}","{$inc:{x:1}}")
            });
            // Xuat
            await col.Find(new BsonDocument()).ForEachAsync(x => Console.WriteLine(x));
        }

    }
}