我在尝试使用 post 请求调用我的 Web api 时遇到问题,返回空数组。
我的方法是:
// POST: Api/v1/transaction/
[HttpPost]
public HttpResponseMessage Post(string user)
{
var userId = new Guid(user);
var transactions = new Collection<TransactionDataTransferObject>();
try
{
var seller = _databaseContext.Sellers.Single(s => s.Id == userId);
var sellerMedias = _databaseContext.Medias.Where(m => m.TakenBy.Id == seller.Id);
foreach (var sellerMedia in sellerMedias)
{
var allLogsForMedia = _databaseContext.Logs.Where(l => l.ObjectReferenceId == sellerMedia.Id);
foreach (var logMedia in allLogsForMedia)
{
var transaction = new TransactionDataTransferObject
{
Date = logMedia.DateTimeInUtc,
Amount = sellerMedia.PriceInSek,
MediaName = sellerMedia.FileName,
UserName = seller.FirstName + " " + seller.LastName
};
transactions.Add(transaction);
}
}
}
catch (Exception exception)
{
return Request.CreateErrorResponse(HttpStatusCode.NotFound, exception);
}
return Request.CreateResponse(HttpStatusCode.OK, transactions);
}
当我调试 transactions 变量时,我在集合中看到两个对象。 我对 postman 的回复是
[
{},
{}
]
我做错了什么?我发送的数据在哪里?
最佳答案
好吧,在把头撞在 table 上几个小时后,我发现我用了 [DataContract] 作为 ViewModel、TransactionDataTransferObject 上的过滤器。
像这样:
[DataContract]
public class TransactionDataTransferObject
{
[Display(Name = "Date")]
public DateTime Date { get; set; }
public string MediaName { get; set; }
public Guid MediaId { get; set; }
public string UserName { get; set; }
public Guid UserId { get; set; }
[Display(Name = "Description")]
public string Discriminator { get; set; }
[Display(Name = "Amount")]
public decimal Amount { get; set; }
}
在这种情况下这是错误的......
感谢您的阅读!
关于c# - Request.CreateResponse向 postman 返回空白数据,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/20543122/