public async Task <ChannelViewModel> GetChannel(string channelId)
{
PopulatePastChannelSearchesDict();
if (PastChannelSearchesDict.ContainsKey(channelId))
{
return(PastChannelSearchesDict[channelId]);
}
else
{
ApiChannel apiChannel = await GetChannelDataFromApi(channelId);
if (apiChannel.Items.Length > 0)
{
ChannelViewModel viewModel = ChannelViewModel.FromApiChannel(apiChannel);
PastChannelSearchesDict.Add(channelId, viewModel);
await WriteChannelViewModelToFile(viewModel);
return(viewModel);
}
return(null);
}
}
public async Task <Dictionary <string, ChannelViewModel> > GetChannels(List <string> channelIds)
{
PopulatePastChannelSearchesDict();
Dictionary <string, ChannelViewModel> apiChannelsDict = new Dictionary <string, ChannelViewModel>();
foreach (var id in channelIds)
{
if (!apiChannelsDict.ContainsKey(id))
{
if (PastVideoSearchesDict.ContainsKey(id))
{
apiChannelsDict.Add(id, PastChannelSearchesDict[id]);
}
else
{
ApiChannel apiChannel = await GetChannelDataFromApi(id);
if (apiChannel.Items.Length > 0)
{
ChannelViewModel viewModel = ChannelViewModel.FromApiChannel(apiChannel);
await WriteChannelViewModelToFile(viewModel);
apiChannelsDict.Add(id, viewModel);
PastChannelSearchesDict.Add(id, viewModel);
}
}
}
}
return(apiChannelsDict);
}
public static ChannelViewModel FromApiChannel(ApiChannel apiChannel)
{
ChannelViewModel viewModel = new ChannelViewModel()
{
Id = apiChannel.Items[0].Id,
ChannelTitle = apiChannel.Items[0].Snippet.Title,
ChannelUrl = "https://www.youtube.com/channel/" + apiChannel.Items[0].Id,
ChannelThumbnail = apiChannel.Items[0].Snippet.Thumbnails.Default.Url == null ? "" : apiChannel.Items[0].Snippet.Thumbnails.Default.Url,
ChannelBanner = apiChannel.Items[0].BrandingSettings.Image == null ? "" : apiChannel.Items[0].BrandingSettings.Image.BannerExternalUrl
};
return(viewModel);
}
public async Task <ApiChannel> GetChannelDataFromApi(string channelId)
{
string googleKey = Environment.GetEnvironmentVariable("$GOOGLE_APIKEY_YOUTUBE_WRAPPED", EnvironmentVariableTarget.Machine);
Uri uri = new Uri(@"https://youtube.googleapis.com/youtube/v3/channels?part=snippet,brandingSettings&id=" + channelId + "&key=" + googleKey);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);
request.AutomaticDecompression = DecompressionMethods.GZip;
//request.UserAgent = "12345";
string responseString = string.Empty;
using (HttpWebResponse response = (HttpWebResponse)await request.GetResponseAsync())
using (Stream stream = response.GetResponseStream())
using (StreamReader reader = new StreamReader(stream))
{
responseString = reader.ReadToEnd();
ApiChannel apiChannel = JsonConvert.DeserializeObject <ApiChannel>(responseString);
return(apiChannel);
}
}