以WebAPI格式返回字符串值的枚举

public enum Status
{
    Pending,
    Approved,
    Rejected
}

public enum OrderStatus
{
    [EnumMember(Value = "pending")]
    Pending,
    [EnumMember(Value = "approved")]
    Approved,
    [EnumMember(Value = "rejected")]
    Rejected
}

[ApiController]
[Route("api/[controller]")]
public class OrderController : ControllerBase
{
    [HttpGet("status")]
    public IActionResult GetOrderStatus()
    {
        var statuses = Enum.GetValues(typeof(OrderStatus))
                          .Cast<OrderStatus>()
                          .Select(e => new
                          {
                              Value = e.ToString(),
                              Description = ((EnumMemberAttribute[])e.GetType().GetField(e.ToString()).GetCustomAttributes(typeof(EnumMemberAttribute), false))[0].Value
                          });
        return Ok(statuses);
    }
}

public enum OrderStatus
{
    [EnumMember(Value = "pending")]
    Pending,
    [EnumMember(Value = "approved")]
    Approved,
    [EnumMember(Value = "rejected")]
    Rejected
}