public static async Task <IActionResult> ThumbnailGenApi(
[HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = "generatethumbnail/{filename}")] HttpRequest req,
[Blob("images/{filename}", FileAccess.Write)] Stream imageStream,
[Blob("thumbnails/{filename}", FileAccess.Write)] Stream thumbnailImageStream,
[VisionThumbnail(SmartCropping = true, Height = "150", Width = "150")] VisionThumbnailClient client,
string fileName,
TraceWriter log)
{
//Load Http Request Body into Thumbnail Request
var request = new VisionThumbnailRequest(req.Body);
//Generate Thumbnail
var thumbnailBytes = await client.ThumbnailAsync(request);
//Output Original Image to Blob Storage
using (MemoryStream stream = new MemoryStream(request.ImageBytes))
{
await stream.CopyToAsync(imageStream);
}
//Output Thumbnail To Blob Storage
using (MemoryStream stream = new MemoryStream(thumbnailBytes))
{
await stream.CopyToAsync(thumbnailImageStream);
}
return((ActionResult) new OkResult());
}
public async Task VisionThumbnailKeyvault(
[VisionThumbnail(Width = "100", Height = "100")]
VisionThumbnailClient client)
{
var request = new VisionThumbnailRequest();
var result = await client.ThumbnailAsync(request);
}
public async Task VisionThumbnailWithTooBigImageBytes(
[VisionThumbnail(AutoResize = false, Width = "100", Height = "100")]
VisionThumbnailClient client)
{
var request = new VisionThumbnailRequest();
request.ImageBytes = MockResults.SamplePhotoTooBig;
var result = await client.ThumbnailAsync(request);
}
public async Task VisionThumbnailWithImageBytes(
[VisionThumbnail(Width = "100", Height = "100")]
VisionThumbnailClient client)
{
var request = new VisionThumbnailRequest();
request.ImageBytes = MockResults.SamplePhoto;
var result = await client.ThumbnailAsync(request);
visionThumbnailResult = result;
}
public async Task VisionThumbnailWithUrl(
[VisionThumbnail(Width = "100", Height = "100")]
VisionThumbnailClient client)
{
var request = new VisionThumbnailRequest();
request.ImageUrl = "http://www.blah";
var result = await client.ThumbnailAsync(request);
visionThumbnailResult = result;
}
public static async Task VisionThumbnailBlobFunction(
[BlobTrigger("thumbnail/{name}")] Stream storageBlob,
[VisionThumbnail(AutoResize = true,
Height = "100",
Width = "100",
SmartCropping = true)] VisionThumbnailClient visionclient,
[Blob("thumbnailresults/{name}", FileAccess.Write)] Stream thumbnailBlob,
string name,
TraceWriter log
)
{
var result = await visionclient.ThumbnailAsync(new VisionThumbnailRequest(storageBlob));
using (MemoryStream stream = new MemoryStream(result))
{
await stream.CopyToAsync(thumbnailBlob);
}
log.Info($"Image thumbnail generated");
}
