public async Task<ConvertTextResponse> AddItem(ConvertTextRequest request) {
HttpClient httpClient = new HttpClient();
// string uri = "https://api.rss2json.com/v1/api.json?rss_url=https%3A%2F%2Ftechcrunch.com%2Ffeed%2F";
var response = await httpClient.GetAsync(request.Uri);
string responseContent = await response.Content.ReadAsStringAsync();
dynamic JsonResponse = JObject.Parse(responseContent);
dynamic items = JsonResponse.items;
var item = items[0];
string guid = item.guid;
int index = guid.IndexOf("?p=");
string itemId = guid.Substring(index + 3, 7);
var voicesResponse = _provider.Polly.DescribeVoicesAsync(new DescribeVoicesRequest
{
LanguageCode = request.Language
});
Random random = new Random();
int r = random.Next(voicesResponse.Result.Voices.Count);
string voice = voicesResponse.Result.Voices[r].Id;
var pollyRequest = new SynthesizeSpeechRequest {
OutputFormat = OutputFormat.Mp3,
Text = item.description,
TextType = "text",
VoiceId = voice
};
var pollyResponse = await _provider.Polly.SynthesizeSpeechAsync(pollyRequest);
if (pollyResponse == null
|| pollyResponse.HttpStatusCode != (HttpStatusCode)200) {
throw new Exception("Text could not be converted to audio.");
}
var memoryStream = new MemoryStream();
pollyResponse.AudioStream.CopyTo(memoryStream);
var s3Response = await _provider.S3.PutObjectAsync(new PutObjectRequest {
BucketName = _provider.Bucket,
Key = itemId + ".mp3",
InputStream = memoryStream
});
if (s3Response == null
|| s3Response.HttpStatusCode != (HttpStatusCode)200) {
throw new Exception("Unable to save audio file to s3");
}
await _provider.SnsClient.PublishAsync(new PublishRequest {
TopicArn = _provider.NotificationTopic,
Message = "The audio file is ready: https://s3.amazonaws.com/" + _provider.Bucket + "/" + itemId + ".mp3",
Subject = item.title
});
return new ConvertTextResponse {
FileName = itemId + ".mp3",
Voice = voice
};
}
public async Task <ConvertTextResponse> AddItem(ConvertTextRequest request)
{
var pollyRequest = new SynthesizeSpeechRequest {
OutputFormat = OutputFormat.Mp3,
Text = request.Content,
TextType = "text",
VoiceId = VoiceId.Amy
};
var pollyResponse = await _provider.Polly.SynthesizeSpeechAsync(pollyRequest);
if (pollyResponse == null ||
pollyResponse.HttpStatusCode != (HttpStatusCode)200)
{
throw new Exception("Text could not be converted to audio.");
}
var memoryStream = new MemoryStream();
pollyResponse.AudioStream.CopyTo(memoryStream);
var s3Response = await _provider.S3.PutObjectAsync(new PutObjectRequest {
BucketName = _provider.Bucket,
Key = request.FileName,
InputStream = memoryStream
});
if (s3Response == null ||
s3Response.HttpStatusCode != (HttpStatusCode)200)
{
throw new Exception("Unable to save audio file to s3");
}
// TODO LVL2 SNS Topic would be nice here
return(new ConvertTextResponse {
FileName = request.FileName
});
}