紺色関数を使用してプロセスを遅延させるにはどうすればよいですか？

、あなたの登録プロセスはCreateTenantの下で行われる必要がある場合、私はあなたが、データベースがオンラインになっているときに、あなたがステップ3を行うことができ、ステップ2の後に、データベースの作成状況を確認することができると仮定しました。私はこのシナリオのためにサンプルを書いて、あなたはそれを参照することができます：

run.csx

#r "System.Configuration" 
#r "System.Data" 

using System.Net; 

using System.Configuration; 
using System.Data.SqlClient; 
using System.Threading.Tasks; 

public static async Task<HttpResponseMessage> Run(HttpRequestMessage req, TraceWriter log) 
{ 
    // Get request body 
    dynamic data = await req.Content.ReadAsAsync<object>(); 
    string dataBase_Name = data?.dataBase_Name; 
    string source_dataBase_Name = data?.source_dataBase_Name; 

    log.Info("Begin create the database for the tenant..."); 

    //Create the database 
    var str = ConfigurationManager.ConnectionStrings["sqldb_connection"].ConnectionString; 
    using (SqlConnection conn = new SqlConnection(str)) 
    { 
     conn.Open(); 
     var copyDbSql = $"CREATE DATABASE [{dataBase_Name}] as COPY OF [{source_dataBase_Name}] (SERVICE_OBJECTIVE='S0')"; 
     try 
     { 
      using (SqlCommand cmd = new SqlCommand(copyDbSql, conn)) 
      { 
       //30s by default, https://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlcommand.commandtimeout.aspx 
       //cmd.CommandTimeout=0; 
       cmd.ExecuteNonQuery(); //30s timeout if the server is not responding, you could change it, but I would leave it for default. 
       log.Info("create database statement executed..."); 
      } 
     } 
     catch (Exception e) 
     { 
      //exception for timeout and so on 
      //you need to make sure the database creation has been accepted, you could execute the following sql statement: 
      //SELECT * FROM sys.dm_database_copies where partner_database=N'{your-database-name}' 
      log.Info(e.Message); 
     } 
    } 

    log.Info("check the creation processing..."); 
    //If the database creation is accepted, then check the creation status of your database 
    bool status = false; 
    using (SqlConnection conn = new SqlConnection(str)) 
    { 
     conn.Open(); 
     var text = "Select count(*) from master.sys.databases where name=N'" + dataBase_Name + "' and state_desc='ONLINE'"; 
     using (SqlCommand cmd = new SqlCommand(text, conn)) 
     { 
      do 
      { 
       var count = await cmd.ExecuteScalarAsync(); 
       if (count != null && Convert.ToInt32(count) > 0) 
        status = true; 
       if (status) 
        log.Info($"Database [{dataBase_Name}] is online!!!"); 
       else 
       { 
        log.Info($"Database [{dataBase_Name}] is creating..."); 
        Task.Delay(TimeSpan.FromSeconds(30)).Wait(); //sleep for 30s 
       } 
      } while (!status); 
     } 
    } 

    if (status) 
    { 
     //Database is online, do other operations 
    } 
    return req.CreateResponse(HttpStatusCode.OK, ""); 
}

結果：

また