Dapper.NET Bulk inserts Async Bulk Copy
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Example
This sample uses a ToDataReader method described here Creating a Generic List DataReader for SqlBulkCopy.
This can also be done using non-async methods.
public class Widget
{
public int WidgetId {get;set;}
public string Name {get;set;}
public int Quantity {get;set;}
}
public async Task AddWidgets(IEnumerable<Widget> widgets)
{
using(var conn = new SqlConnection("{connection string}")) {
await conn.OpenAsync();
using(var bulkCopy = new SqlBulkCopy(conn)) {
bulkCopy.BulkCopyTimeout = SqlTimeoutSeconds;
bulkCopy.BatchSize = 500;
bulkCopy.DestinationTableName = "Widgets";
bulkCopy.EnableStreaming = true;
using(var dataReader = widgets.ToDataReader())
{
await bulkCopy.WriteToServerAsync(dataReader);
}
}
}
}
