# System.Text.Json Serializer sample


This sample uses the [System.Text.Json](https://learn.microsoft.com/en-us/dotnet/standard/serialization/system-text-json) serializer built in to NServiceBus to serialize message payloads.

## Configuring to use NServiceBus.Newtonsoft.Json

<!-- snippet: config -->

```cs
endpointConfiguration.UseSerialization<SystemJsonSerializer>();
```

<!-- endsnippet -->

## Sending the message

<!-- snippet: message -->

```cs
var message = new CreateOrder
{
    OrderId = 9,
    Date = DateTime.Now,
    CustomerId = 12,
    OrderItems =
    [
        new OrderItem()
        {
            ItemId = 6,
            Quantity = 2
        },

        new OrderItem()
        {
            ItemId = 5,
            Quantity = 4
        }

    ]
};
await messageSession.SendLocal(message);
```

<!-- endsnippet -->

## Output

```json
{
  "OrderId": 9,
  "Date": "2015-09-15T10:23:44.9367871+10:00",
  "CustomerId": 12,
  "OrderItems": [
    {
      "ItemId": 6,
      "Quantity": 2
    },
    {
      "ItemId": 5,
      "Quantity": 4
    }
  ]
}
```