public static async Task Run(
[QueueTrigger("newpets", Connection = "StorageConnectionString")] string queueItem,
ILogger logger,
[ServiceLocator] IServiceProvider serviceProvider,
[Config] IConfiguration config)
{
var httpClientFactory = serviceProvider.GetRequiredService <IHttpClientFactory>();
var petService = serviceProvider.GetRequiredService <PetService>();
var _storage = CloudStorageAccount.Parse(config.GetValue <string>("StorageConnectionString")).CreateCloudBlobClient();
// Deserialize queue message
var petFromQueue = JsonConvert.DeserializeObject <Pet>(queueItem);
// Download image
var blob = new CloudBlockBlob(new Uri(petFromQueue.ImageUrl), _storage);
var image = await blob.DownloadBlobAsync();
// Call Cognitive Services Computer Vision
var client = httpClientFactory.CreateClient();
client.DefaultRequestHeaders.Add("Ocp-Apim-Subscription-Key", config.GetValue <string>("ComputerVision"));
var response = await client.PostAsync(ComputerVisionUrl, image);
if (response.IsSuccessStatusCode)
{
// Upload image to blob
var thumbnail = await response.Content.ReadAsStreamAsync();
await blob.UploadFromStreamAsync(thumbnail);
// publish pet
var pet = await petService.GetPetAsync(petFromQueue.Id, petFromQueue.Type);
pet.Published = true;
await petService.UpdatePetAsync(pet);
}
else
{
var result = await response.Content.ReadAsStringAsync();
logger.LogError(result);
}
}
