Enigmatry.Entry.BlobStorage 9.2.0

Blob Storage Library

A library that provides abstraction and implementation for storing and retrieving blobs (binary large objects) using various storage providers.

Intended Usage

Use this library when you need to store and manage binary data such as files, images, documents, or other media content.

Installation

Add the package to your project:

dotnet add package Enigmatry.Entry.BlobStorage

Usage Example

using System.IO;
using System.Threading.Tasks;
using System.Collections.Generic;
using Enigmatry.Entry.BlobStorage;

public class DocumentService
{
    private readonly IBlobStorage _blobStorage;
    
    public DocumentService(IBlobStorage blobStorage)
    {
        _blobStorage = blobStorage;
    }
    
    public async Task<string> UploadDocumentAsync(Stream documentStream, string fileName)
    {
        // The relative path where the blob will be stored
        string relativePath = $"documents/{fileName}";
        
        // Upload the blob to storage
        await _blobStorage.AddAsync(relativePath, documentStream, override: true);
        
        // Return the full resource path
        return _blobStorage.BuildResourcePath(relativePath);
    }
      public async Task<Stream> GetDocumentAsync(string relativePath)
    {
        // Check if the blob exists
        if (!await _blobStorage.ExistsAsync(relativePath))
        {
            throw new FileNotFoundException($"Document not found: {relativePath}");
        }
        
        // Retrieve the blob content as a stream
        return await _blobStorage.GetAsync(relativePath);
    }
    
    public async Task<bool> DeleteDocumentAsync(string relativePath)
    {
        // Delete the blob and return whether it was successfully deleted
        return await _blobStorage.RemoveAsync(relativePath);
    }
    
    public async Task<IEnumerable<Models.BlobDetails>> ListDocumentsAsync()
    {
        // List all blobs in the documents directory
        return await _blobStorage.GetListAsync("documents/*");
    }
}

Configuration Example

{
  "App": {
    "AzureBlobStorage": {
      "AccountName": "mystorageaccount",
      "AccountKey": "your-secret-account-key",
      "SasDuration": "01:00:00",
      "FileSizeLimit": 10485760,
      "CacheTimeout": 3600
    }
  }
}

Dependency Injection Example

using Enigmatry.Entry.BlobStorage.Azure;
using Microsoft.Extensions.DependencyInjection;

public class Startup
{
    public void ConfigureServices(IServiceCollection services)
    {
        // Register a public Azure blob storage container
        services.AddEntryPublicAzBlobStorage("documents");
        
        // Or register a private Azure blob storage container
        services.AddEntryPrivateAzBlobStorage("private-documents");
    }
}