LiteX.Storage.Amazon 3.0.0

LiteXStorage

Abstract interface to implement any kind of basic blob storage services (e.g. Azure, Amazon, Google, Local FileSystem) for any type of application (ASP.NET Core, .Net Standard 2.x).

Add a dependency

Nuget

Run the nuget command for installing the client as,

• Install-Package LiteX.Storage.Core
• Install-Package LiteX.Storage.Amazon

Configuration

AppSettings

{
  //LiteX Amazon Storage settings
  "AmazonBlobConfig": {
    "AmazonAwsAccessKeyId": "--- REPLACE WITH YOUR AMAZON ACCESS KEY ID ---",
    "AmazonAwsSecretAccessKey": "--- REPLACE WITH YOUR AMAZON SECRET ACCESS KEY ---",
    "AmazonBucketName": "--- REPLACE WITH YOUR AZURE AMAZON BUCKET NAME ---"
  }
}

Startup Configuration

public class Startup
{
    public void ConfigureServices(IServiceCollection services)
    {
        // 1. Use default configuration from appsettings.json's 'AmazonBlobConfig'
        services.AddLiteXAmazonBlobService();

        //OR
        // 2. Load configuration settings using options.
        services.AddLiteXAmazonBlobService(option =>
        {
            //option. = "";
        });

        //OR
        // 3. Load configuration settings on your own.
        // (e.g. appsettings, database, hardcoded)
        var amazonBlobConfig = new AmazonBlobConfig();
        services.AddLiteXAmazonBlobService(amazonBlobConfig);
    }

    public void Configure(IApplicationBuilder app, IHostingEnvironment env)
    {

    }
}

Usage

Controller or Business layer

/// <summary>
/// Customer controller
/// </summary>
public class CustomerController : Controller
{
    #region Fields

    private readonly IBlobService _blobService;

    #endregion

    #region Ctor

    /// <summary>
    /// Ctor
    /// </summary>
    /// <param name="blobService"></param>
    public CustomerController(IBlobService blobService)
    {
        _blobService = blobService;
    }

    #endregion

    #region Methods

    /// <summary>
    /// Create/Replace blob file
    /// </summary>
    /// <param name="file"></param>
    /// <returns></returns>
    public IActionResult UploadBlobFile(IFormFile file)
    {
        try
        {
            string blobName = file.FileName;
            byte[] data = StreamToByteArray(file.OpenReadStream());
            string contentType = file.ContentType;

            bool isUploaded = _blobService.UploadBlob(blobName, data, contentType);
        }
        catch (Exception ex)
        {
            return BadRequest(ex);
        }
        return Ok();
    }

    /// <summary>
    /// Get blob file data (bytes or stream)
    /// </summary>
    /// <param name="blobName"></param>
    /// <returns></returns>
    public IActionResult GetBlobFile(string blobName)
    {
        try
        {
            // get blob bytes
            byte[] data = _blobService.GetBlob(blobName);

            // get memeory stream
            MemoryStream stream = _blobService.GetBlobStream(blobName);
        }
        catch (Exception ex)
        {
            return BadRequest(ex);
        }
        return Ok();
    }

    /// <summary>
    /// Get blob url
    /// </summary>
    /// <param name="blobName"></param>
    /// <returns></returns>
    public IActionResult GetBlobUrl(string blobName)
    {
        try
        {
            string blobUrl = _blobService.GetBlobUrl(blobName);
        }
        catch (Exception ex)
        {
            return BadRequest(ex);
        }
        return Ok();
    }

    /// <summary>
    /// Delete blob file
    /// </summary>
    /// <param name="blobName"></param>
    /// <returns></returns>
    public IActionResult DeleteBlobFile(string blobName)
    {
        try
        {
            bool isDeleted = _blobService.DeleteBlob(blobName);
        }
        catch (Exception ex)
        {
            return BadRequest(ex);
        }
        return Ok();
    }

    /// <summary>
    /// Get blob metadata
    /// </summary>
    /// <param name="blobName"></param>
    /// <returns></returns>
    public IActionResult GetBlobMetadata(string blobName)
    {
        try
        {
            IDictionary<string, string> metadata = _blobService.GetBlobMetadata(blobName);
        }
        catch (Exception ex)
        {
            return BadRequest(ex);
        }
        return Ok();
    }

    /// <summary>
    /// Set blob metadata
    /// </summary>
    /// <param name="blobName"></param>
    /// <returns></returns>
    public IActionResult SetBlobMetadata(string blobName)
    {
        try
        {
            IDictionary<string, string> metadata = new Dictionary<string, string>();
            //list of metadata to update
            //metadata.Add("", "");

            bool isSet = _blobService.SetBlobMetadata(blobName, metadata);
        }
        catch (Exception ex)
        {
            return BadRequest(ex);
        }
        return Ok();
    }

    #endregion

    #region Utilities

    private IList<Customer> GetCustomers()
    {
        IList<Customer> customers = new List<Customer>();

        customers.Add(new Customer() { Id = 1, Username = "ashish", Email = "toaashishpatel@outlook.com" });

        return customers;
    }

    private Customer GetCustomerById(int id)
    {
        Customer customer = null;

        customer = GetCustomers().ToList().FirstOrDefault(x => x.Id == id);

        return customer;
    }

    public static byte[] StreamToByteArray(Stream input)
    {
        byte[] buffer = new byte[16 * 1024];
        using (MemoryStream ms = new MemoryStream())
        {
            int read;
            while ((read = input.Read(buffer, 0, buffer.Length)) > 0)
            {
                ms.Write(buffer, 0, read);
            }
            return ms.ToArray();
        }
    }

    #endregion
}