wcf json-response Array/List - json

Question

I am developing an wcf-webservice. The consumer is able to choose between an atom-response and a json-response.
My OperationContract looks like this:
[OperationContract]
[WebInvoke(Method = "GET", ResponseFormat = WebMessageFormat.Json, UriTemplate = "json/json")]
Result GetData();
The Result-Type contains some strings and an array of entries.
[DataContract]
public class Result
{
[DataMember]
public string baseUrl;
[DataMember]
public string url;
[DataMember]
public string title;
[DataMember]
public int totalResults;
[DataMember]
public JsonEntries[] resources;
}
I marked the JsonEntries also as DataContract:
[DataContract]
public class JsonEntries
{
[DataMember]
public string updated;
[DataMember]
public string key;
[DataMember]
public string title;
[DataMember]
public Salary salarie;
}
However, when i am trying to run this i get the error, that the metadata could not be called. When I am deleting the [DataMember] in front of the array, i get no error, but my response doesnt contain the array.
I've seen it work like this on various exmaples. So what am i doing wrong?
thanks in advance.
robidd

Answer 1

Should work, here is my code sample
DataContracts
[DataContract]
public class Result
{
[DataMember]
public int totalResults;
[DataMember]
public JsonEntries[] resources;
}
[DataContract]
public class JsonEntries
{
[DataMember]
public string title;
}
OperationContract
[OperationContract]
[WebInvoke(Method = "GET", ResponseFormat = WebMessageFormat.Json, UriTemplate = "getdata")]
Result GetData();
public Result GetData()
{
var jsonEntries = new List<JsonEntries>
{
new JsonEntries {title = "1"},
new JsonEntries {title = "2"},
new JsonEntries {title = "3"}
}.ToArray();
return new Result
{
resources = jsonEntries,
totalResults = 1
};
}
my get call
private Bag<T> GetData<T>(string uri)
{
try
{
var request = (HttpWebRequest) WebRequest.Create(uri);
request.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;
request.Headers[HttpRequestHeader.Authorization] = _authorizationData;
var response = (HttpWebResponse) request.GetResponse();
Stream stream = response.GetResponseStream();
var localStream = new MemoryStream();
CopyStream(stream, localStream);
stream.Close();
var result = JsonContractExtensions.Create<T>(localStream);
return new Bag<T>(result);
}
catch (WebException ex)
{
_log.Debug(ex);
return Bag<T>.Empty;
}
catch (Exception ex)
{
_log.Debug(ex);
return Bag<T>.Empty;
}
}