How to upload a file in to azure blob in Asp.Net Core?

Question

I have tried to upload the files in to my azure blob using below code

  public async void UploadSync(IEnumerable<IFormFile> files, string path)
        {
            string MyPath = path.Replace("https://browsercontent.blob.core.windows.net/blob1/", "");

            try
            {
                foreach (var file in files)
                {
                    var newBlob = container.GetBlockBlobReference(MyPath);
                    await newBlob.UploadFromFileAsync(@"C:\Users\joy\Downloads\" + file.FileName);

                }
            }
            catch (Exception ex)
            { throw ex;}

        }

Actually i have upload the jpg file but it upload in a "application/octact steam" type. how to resolve it?

And my scenario is while uploading the file, windows explorer will open to select the file to upload. So if we provide the path as static as below,

newBlob.UploadFromFileAsync(@"C:\Users\joy\Downloads\" + file.FileName);

it will not be applicable for application. How to change this code to upload the files from various locations?

Zhaoxing Lu · Accepted Answer · 2017-11-27 01:43:12Z

3

Try to use UploadFromStream and let me know the outcome

// Retrieve storage account from connection string.
CloudStorageAccount storageAccount = CloudStorageAccount.Parse(
    CloudConfigurationManager.GetSetting("StorageConnectionString"));

// Create the blob client.
CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();

// Retrieve reference to a previously created container.
CloudBlobContainer container = blobClient.GetContainerReference("mycontainer");

// Retrieve reference to a blob named "myblob".
CloudBlockBlob blockBlob = container.GetBlockBlobReference("myblob");

// Create or overwrite the "myblob" blob with contents from a local file.
using (var fileStream = System.IO.File.OpenRead(@"path\myfile"))
{
    blockBlob.UploadFromStream(fileStream);
}

https://learn.microsoft.com/en-us/azure/storage/blobs/storage-dotnet-how-to-use-blobs

edited Nov 27, 2017 at 1:43

Zhaoxing Lu

6,44222 silver badges42 bronze badges

answered Nov 25, 2017 at 16:59

SumanthMarigowda-MSFT

2,4091 gold badge11 silver badges15 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Oliver Over a year ago

You could update your answer to taken into consideration OPs concern around "application/octact steam" content type by including setting the blockblob.Properties.ContentType property

Karthik Ravichandran Over a year ago

@sumanth, Your code works great. Thanks. Similarly how can i download the files from the azure blob storage?Can you please share the code block for downloading the files from azure blob in asp.net core

Collectives™ on Stack Overflow

How to upload a file in to azure blob in Asp.Net Core?

1 Answer 1

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related