Pick file from a source location(.net) and push to Azure blob

Radhika B

Hi Team,

I have to build .net console application in such a way that i need to pick file from source and push to Microsoft Storage Explorer(BLOB).

Could you please provide sample console applications to achieve this task.

Regards,

Radhika

7 Replies

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Yateesha G5y ago
Accepted answer
Check this link -> https://www.c-sharpcorner.com/article/azure-blob-storage-uploaddownloaddelete-files-using-net-5/
Yateesha G5y ago
If you are already having IFormFile then no need of file location

you can try with one of the overload method of blob.Upload(@"D:\" + systemFileName); to upload stream insead of file location.

using (var data = files.OpenReadStream())

{

blob.Upload(data);

}
Yateesha G5y ago
Same thing its working for me.

Can you once again cross check the location and filename with extension?
Radhika B5y ago
I have changed c drive to D drive i am getting below error @ -- blob.Upload(@"D:\" + systemFileName); //File location

FileController.cs

public IActionResult UploadFile(IFormFile files)
{
string systemFileName = files.FileName;

Uri url = new Uri("https://abcdef.blob.core.windows.net/fsdfsdf"); // SAS Connection String
var storageSharedKeyCredential = new StorageSharedKeyCredential("RRR", "CCdfsfrgrgghrh="); //AccountName, AccountKey
BlobContainerClient container = new BlobContainerClient(url, storageSharedKeyCredential);
BlobClient blob = container.GetBlobClient(systemFileName);

blob.Upload(@"D:\" + systemFileName); //File location

return Ok("File Uploaded Successfully");
}

appsettings.json:

{
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft": "Warning",
"Microsoft.Hosting.Lifetime": "Information"
}
},
"AllowedHosts": "*",
"BlobConnectionString": "*BlobEndpoint=https://abcdef.blob.core.windows.net/fsdfsdf*",
"BlobContainerName": "*rertwet-import*",
"AccountName": "*RRR*",
"AccountKey": "*CCdfsfrgrgghrh=*"
Radhika B5y ago
Hi Yateesha,

In File location I have given path of my local machine
BlobClient blob = container.GetBlobClient(systemFileName);
blob.Upload(@"C:\Users\Radhika\Desktop\"); //File location

I am getting below error :
Exception User- Unhandled :

System.UnauthorizedAccessException: Access to the path is denied.

Could you please let me know how to resolve this issue.

Regards,
Radhika
Yateesha G5y ago
For you case you can try with different library - Azure.Storage.Blobs

But you may need Account Name and Account Key along with SAS Connection String

If you have Account Name and Account Key then follow the below steps

Step 1: Install Azure.Storage.Blobs library

Step 2 : Use below code with your connection string and Key

            Uri url = new Uri("SAS Connection String");
            StorageSharedKeyCredential storageSharedKeyCredential = new             StorageSharedKeyCredential("AccountName", "AccountKey");
            BlobContainerClient container = new BlobContainerClient(url, storageSharedKeyCredential);
            BlobClient blob = container.GetBlobClient("FileNameWithExtenstion");
            blob.Upload(@"FileLocation");
Radhika B5y ago
HI Yateesha, Thank you for the reply.

?

I am using SAS Connection String in Microsoft Azure Storage Explorer and Visual Studio ASP.Net Core Web API .Net 5 framework

Connection string:

"BlobConnectionString": "*https://storagesample.blob.core.windows.net/*",
"BlobContainerName": "*import*"

When i tried to upload csv file it is throwing error at below line:

CloudStorageAccount cloudStorageAccount = CloudStorageAccount.Parse(blobstorageconnection);
```
System.FormatException: No valid combination of account information found.
```
Could you please let me know which File Location we need to give either local path OR blob

?