Newtonsoft.Json.JsonConvert.SerializeObject(request)
Since .NET Core 3.0 you can use System.Text.Json:
System.Text.Json.JsonSerializer.Serialize(request)
Newtonsoft.Json.JsonConvert.SerializeObject(request)
Since .NET Core 3.0 you can use System.Text.Json:
System.Text.Json.JsonSerializer.Serialize(request)