// Discovery stream returned
private void OnDiscoveryStreamReturned(object sender, GetDiscoveryStreamEventArgs e)
{
JObject rawJson = JObject.Parse(e.Response);
JObject rootJson = (JObject)rawJson["photos"];
TotalDiscoveryPhotosCount = int.Parse(rootJson["total"].ToString());
int page = int.Parse(rootJson["page"].ToString());
int numPages = int.Parse(rootJson["pages"].ToString());
int perPage = int.Parse(rootJson["perpage"].ToString());
List<Photo> newPhotos = new List<Photo>();
foreach (var entry in rootJson["photo"])
{
JObject json = (JObject)entry;
Photo photo = PhotoFactory.PhotoWithJObject(json);
if (!DiscoveryList.Contains(photo))
{
DiscoveryList.Add(photo);
newPhotos.Add(photo);
}
}
// Dispatch event
DiscoveryStreamUpdatedEventArgs args = new DiscoveryStreamUpdatedEventArgs();
args.Page = page;
args.PageCount = numPages;
args.PerPage = perPage;
args.NewPhotos = newPhotos;
DiscoveryStreamUpdated.DispatchEvent(this, args);
}
public async void GetDiscoveryStreamAsync(Dictionary<string, string> parameters = null)
{
IsLoadingDiscoveryStream = true;
string timestamp = DateTimeUtils.GetTimestamp();
string nonce = Guid.NewGuid().ToString().Replace("-", null);
Dictionary<string, string> paramDict = new Dictionary<string, string>();
paramDict["method"] = "flickr.interestingness.getList";
paramDict["format"] = "json";
paramDict["nojsoncallback"] = "1";
paramDict["oauth_consumer_key"] = consumerKey;
paramDict["oauth_nonce"] = nonce;
paramDict["oauth_signature_method"] = "HMAC-SHA1";
paramDict["oauth_timestamp"] = timestamp;
paramDict["oauth_token"] = AccessToken;
paramDict["oauth_version"] = "1.0";
if (parameters != null)
{
foreach (var entry in parameters)
{
paramDict[entry.Key] = entry.Value;
}
}
paramDict["extras"] = UrlHelper.Encode(commonExtraParameters);
string paramString = GenerateParamString(paramDict);
string signature = GenerateSignature("GET", AccessTokenSecret, "https://api.flickr.com/services/rest", paramString);
string requestUrl = "https://api.flickr.com/services/rest?" + paramString + "&oauth_signature=" + signature;
HttpWebResponse response = await DispatchRequest("GET", requestUrl, null).ConfigureAwait(false);
using (StreamReader reader = new StreamReader(response.GetResponseStream()))
{
IsLoadingDiscoveryStream = false;
if (response.StatusCode != HttpStatusCode.OK)
{
HandleHTTPException(response);
DiscoveryStreamException(this, null);
return;
}
string jsonString = await reader.ReadToEndAsync().ConfigureAwait(false);
if (!TryHandleResponseException(jsonString, () => { GetDiscoveryStreamAsync(parameters); }))
{
DiscoveryStreamException(this, null);
return;
}
GetDiscoveryStreamEventArgs args = new GetDiscoveryStreamEventArgs();
args.Response = jsonString;
DiscoveryStreamReturned.DispatchEvent(this, args);
}
}
