public async Task <Celebrity> RecognizeCelebrityAsync(Stream imgStream)
{
VisionResult result = await this.MakePostRequest(CelebrityEndpoint, imgStream);
if (result?.result?.celebrities?.Length > 0)
{
return(result?.result?.celebrities[0]);
}
return(null);
}
public async Task <Landmark> RecognizeLandmarkAsync(Stream imgStream)
{
VisionResult result = await this.MakePostRequest(LandmarkEndpoint, imgStream);
if (result?.result?.landmarks?.Length > 0)
{
return(result?.result?.landmarks[0]);
}
return(null);
}
private async Task <VisionResult> MakePostRequest(string uri, Stream imageStream)
{
try
{
using (HttpClient httpClient = httpClientFactory.CreateClient())
{
using (StreamContent streamContent = new StreamContent(imageStream))
{
streamContent.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
using (var request = new HttpRequestMessage(HttpMethod.Post, uri))
{
request.Content = streamContent;
request.Headers.Add("Ocp-Apim-Subscription-Key", Key1);
using (HttpResponseMessage response = await httpClient.SendAsync(request))
{
if (response.IsSuccessStatusCode)
{
string resultString = await response.Content.ReadAsStringAsync();
VisionResult result = JsonConvert.DeserializeObject <VisionResult>(resultString);
return(result);
}
else
{
}
}
}
return(null);
}
}
}
catch (Exception ex)
{
return(null);
}
}