System.IO options in Azure Web App

Question

i am planning to migrate my on-premises ASP.Net 4.5 Website to Azure Web App
In my on-premises website, we have used the MemoryStream for in-memory storage and StreamReader to read from that MemoryStream . Both of them belong to the System.IO namespace , which is not allowed in Azure Web App.

What alternatives do i have in Azure App Service , instead of MemoryStream and StreamReader ?
Should i use Redis Cache or any other alternatives ?

Please help

Answer 1

@MS Techie You can use the System.IO namespace in an Azure Web App.
Below is a code snippet that uses MemoryStream to upload a blob to Azure Storage.

using System;  
using Azure.Storage.Blobs;  
using Azure.Storage.Blobs.Models;  
using System.Collections.Generic;  
using System.Threading.Tasks;  
using System.Text;  
using System.IO;  
using Azure.Identity;  
  
// Some code omitted for brevity.  
  
static public async Task UploadBlob(string accountName, string containerName, string blobName, string blobContents)  
{  
    // Construct the blob container endpoint from the arguments.  
    string containerEndpoint = string.Format("https://{0}.blob.core.windows.net/{1}",  
                                                accountName,  
                                                containerName);  
  
    // Get a credential and create a client object for the blob container.  
    BlobContainerClient containerClient = new BlobContainerClient(new Uri(containerEndpoint),  
                                                                    new DefaultAzureCredential());  
  
    try  
    {  
        // Create the container if it does not exist.  
        await containerClient.CreateIfNotExistsAsync();  
  
        // Upload text to a new block blob.  
        byte[] byteArray = Encoding.ASCII.GetBytes(blobContents);  
  
        using (MemoryStream stream = new MemoryStream(byteArray))  
        {  
            await containerClient.UploadBlobAsync(blobName, stream);  
        }  
    }  
    catch (Exception e)  
    {  
        throw e;  
    }  
}  

We have the complete tutorial here
Do let us know if you have any further questions.

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