using System;

using System.Net;

public class Program

{

    public static void Main()

    {

        var apiUrl = "API_URL";                  //Provided by b2_authorize_account 

        var authToken = "AUTH_TOKEN";            //Provided by b2_authorize_account

        var accountId = "ACCOUNT_ID";            //B2 Cloud Storage AccountID

        var bucketName = "my-very-first-bucket"; //The unique bucket ID

        var bucketType = "allPrivate";

        var postUrl = $"{apiUrl}/b2api/v1/b2_create_bucket";

        var jsonData = $"{{\"accountId\":\"{accountId}\",\"bucketName\":\"{bucketName}\",\"bucketType\":\"{bucketType}\"}}";

        using (var client = new WebClient())

        {

            client.Headers.Add("Authorization", authToken);

            var response = client.UploadString(postUrl, jsonData);

            Console.WriteLine(response);

        }

    }

}