Error deserializing json with nested arrays - json

Question

I'm trying to deserialize a json object that includes nested arrays and I get the following error when I try it in Postman:
{
"errors": {
"accounts": [
"Cannot deserialize the current JSON array (e.g. [1,2,3]) into type 'Orders.Dtos.Accounts' because the type requires a JSON object (e.g. {"name":"value"}) to deserialize correctly.\r\nTo fix this error either change the JSON to a JSON object (e.g. {"name":"value"}) or change the deserialized type to an array or a type that implements a collection interface (e.g. ICollection, IList) like List that can be deserialized from a JSON array. JsonArrayAttribute can also be added to the type to force it to deserialize from a JSON array.\r\nPath 'accounts', line 7, position 17."
]
},
"type": "https://tools.ietf.org/html/rfc7231#section-6.5.1",
"title": "One or more validation errors occurred.",
"status": 400,
"traceId": "00-92466567188264cbdc71e6f6d7479688-fe08150cd947ddf1-00"
}
Simplified json to deserialize:
{
"plannedShippingDateAndTime": "2023-02-07T07:06:00 GMT+01:00",
"pickup": {
"isRequested": false
},
"productCode": "N",
"accounts": [
{
"typeCode": "shipper",
"number": "999999999"
}
]
}
Classes:
public class ShipmentData
{
public string PlannedShippingDateAndTime { get; set; }
public Pickup Pickup { get; set; }
public string ProductCode { get; set; } = "N";
public Accounts Accounts { get; set; }
}
public class Pickup
{
public bool isRequested { get; set; }
}
public class Accounts
{
public ArrayAccounts[] ArrayAccounts { get; set; }
}
public class ArrayAccounts
{
public string TypeCode { get; set; }
public string Number { get; set; }
}
Api Controller:
[HttpPost("CreateShipment/{OrderId}")]
public async Task<ActionResult> CreateShipment(string OrderId, ShipMentData shipmentData)
{
...
}

Answer 1

public class ShipmentData
{
public string PlannedShippingDateAndTime { get; set; }
public Pickup Pickup { get; set; }
public string ProductCode { get; set; }
public Account[] Accounts { get; set; }
}
public class Pickup
{
public bool IsRequested { get; set; }
}
public class Account
{
public string TypeCode { get; set; }
public string Number { get; set; }
}
Also Customize JSON binding:
options.SerializerOptions.PropertyNamingPolicy = JsonNamingPolicy.CamelCase;