private void OnContactPhotosReturned(object sender, GetContactPhotosEventArgs e) { JObject rawJson = JObject.Parse(e.Response); JObject rootJson = (JObject)rawJson["photos"]; ContactPhotoList.Clear(); foreach (var entry in rootJson["photo"]) { JObject json = (JObject)entry; Photo photo = PhotoFactory.PhotoWithJObject(json); ContactPhotoList.Add(photo); } // Dispatch event if (ContactPhotosUpdated != null) ContactPhotosUpdated(this, null); }
public async void GetContactPhotosAsync() { if (isLoadingContactPhotos) return; isLoadingContactPhotos = true; string timestamp = DateTimeUtils.GetTimestamp(); string nonce = Guid.NewGuid().ToString().Replace("-", null); Dictionary<string, string> paramDict = new Dictionary<string, string>(); paramDict["method"] = "flickr.photos.getContactsPhotos"; 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"; paramDict["count"] = "25"; 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())) { isLoadingContactPhotos = false; if (response.StatusCode != HttpStatusCode.OK) { HandleHTTPException(response); return; } string jsonString = await reader.ReadToEndAsync().ConfigureAwait(false); if (!TryHandleResponseException(jsonString, () => { GetContactPhotosAsync(); }, () => { if (GetContactPhotosException != null) GetContactPhotosException(this, null); })) return; GetContactPhotosEventArgs args = new GetContactPhotosEventArgs(); args.Response = jsonString; ContactPhotosReturned.DispatchEvent(this, args); } }