private async Task <ChannelPageParser> GetChannelPageParserAsync(string channelId)
{
var url = $"https://www.youtube.com/channel/{channelId}";
var raw = await _httpClient.GetStringAsync(url).ConfigureAwait(false);
return(ChannelPageParser.Initialize(raw));
}
private async Task <ChannelPageParser> GetChannelPageParserByUsernameAsync(string username)
{
username = username.UrlEncode();
var url = $"https://www.youtube.com/user/{username}?hl=en";
// Retry up to 5 times because sometimes the response has random errors
for (var retry = 0; retry < 5; retry++)
{
var raw = await _httpClient.GetStringAsync(url);
var parser = ChannelPageParser.Initialize(raw);
// If successful - return
if (parser.ParseIsAvailable())
{
return(parser);
}
// Otherwise put a delay before trying again
await Task.Delay(150);
}
// Throw exception
throw new InvalidDataException("Could not get channel page.");
}
private async Task <ChannelPageParser> GetChannelPageParserByUsernameAsync(string username)
{
username = username.UrlEncode();
var url = $"https://www.youtube.com/user/{username}";
var raw = await _httpClient.GetStringAsync(url).ConfigureAwait(false);
return(ChannelPageParser.Initialize(raw));
}