How do I set Set ContentType before upload to azure blob container [duplicate] - azure-storage

Question

This question already has answers here:
How upload blob in Azure Blob Storage with specified ContentType with .NET v12 SDK?
(2 answers)
Closed 2 years ago.
I'm using the asp.net-core webapi to upload images to azure storage.
I was able to successfully upload a image blob to azure storage (using the quickstart). However, the content-type property (with azure) is set to application/octet-stream. The problem with this is the public url will not load in a browser due to this content type. I plan to eventually consume this url/image in my website so I'm thinking this might work. Is there any way to specify the CONTENT-TYPE to image/jpeg? I've also tried the following code but received error message: 404 (The specified blob does not exist.) during the SetHttpHeaders call (the UploadBlob method call that is currently commented out does work, but has the octet-stream content type).
BlobClient blobClient = containerClient.GetBlobClient(guids[index]);
using (var content = file.OpenReadStream())
{
blobClient.Upload(content);
blobClient.SetHttpHeaders(new BlobHttpHeaders() { ContentType = "image/jpeg" });
//containerClient.UploadBlob(guids[index], content);
}

Answer 1

Not specific contentType, with the filename.[ext] download ok. When create the reference to blobclient set the extension. Example download:
var fileName = $"{guids[index]}.jpg";
var pathStorage = Path.Combine(path, fileName);
BlobClient blobClient = containerClient.GetBlobClient(pathStorage);
BlobDownloadInfo download = await blobClient.DownloadAsync();
byte[] bytesContent;
using (var ms = new MemoryStream())
{
await download.Content.CopyToAsync(ms);
bytesContent = ms.ToArray();
}
return bytesContent;
Example upload:
var fileName = $"{guids[index]}.jpg";
var pathStorage = Path.Combine(path, fileName);
BlobClient blobClient = containerClient.GetBlobClient(pathStorage);
var stream = new MemoryStream(bytesContent);
var uploadInfo = await blobClient.UploadAsync(stream);