Uploading the file on azure blob container doesn't work

Question

I am trying to upload a file on an azure blob, the purpose of this application is to log all the exceptions to the azure blob, for this purpose I created a .net core console application and called this application using web API but it runs perfectly fine from the local system, but when I upload/deploy it on azure app service it doesn't work at all, your help would be highly appreciated. thank you :-)

public static async Task UploadBlob(string Information)
    {
        var connectionString = "ConnectionString Goes here";
        string containerName = "logs";
        var serviceClient = new BlobServiceClient(connectionString);
        var containerClient = serviceClient.GetBlobContainerClient(containerName);
        var path = @"c:\temp";
        var fileName = "filename.txt";
        var localFile = Path.Combine(path, fileName);
        await File.WriteAllTextAsync(localFile, Information);
        var blobClient = containerClient.GetBlobClient($"{DateTime.Now.Year}/{DateTime.Now.Month}/{DateTime.Now.Day}/{fileName}");
        //var blobClient = containerClient.GetBlobClient(sal/fileName);
        Console.WriteLine("Uploading to Blob storage");
        using FileStream uploadFileStream = File.OpenRead(localFile);
        await blobClient.UploadAsync(uploadFileStream, true);
        uploadFileStream.Close();
    }

Answer 1

You can use the below code to upload file to azure blob storage using c#:

public interface IStorage
{
    Task Create(Stream stream, string path);
}

public class AzureBlobStorage : IStorage
{
    public async Task Create(Stream stream, string path)
    {
        // Initialise client in a different place if you like
        string storageConnectionString = "DefaultEndpointsProtocol=https;"
                    + "AccountName=[ACCOUNT]"
                    + ";AccountKey=[KEY]"
                    + ";EndpointSuffix=core.windows.net";

        CloudStorageAccount account = CloudStorageAccount.Parse(storageConnectionString);
        var blobClient = account.CreateCloudBlobClient();

        // Make sure container is there
        var blobContainer = blobClient.GetContainerReference("test");
        await blobContainer.CreateIfNotExistsAsync();

        CloudBlockBlob blockBlob = blobContainer.GetBlockBlobReference(path);
        await blockBlob.UploadFromStreamAsync(stream);
    }
}

class Program
{
    static void Main(string[] args)
    {
        // Put your DI here
        var storage = new AzureBlobStorage();

        // Read a local file
        using (FileStream file = File.Open(@"C:\cartoon.PNG", FileMode.Open))
        {
            try
            {
                // Pattern to run an async code from a sync method
                storage.Create(file, "1.png").ContinueWith(t =>
                {
                    if (t.IsCompletedSuccessfully)
                    {
                        Console.Out.WriteLine("Blob uploaded");
                    }
                }).Wait();
            }
            catch (Exception e)
            {
                // Omitted
            }
        }
    }
}

Reference: Azure Storage client libraries for .NET - Azure for .NET Developers