S3.md

S3

S3 class implementation

Before you use this class i recommend you to use an interface and inject it on your dependencies with your dependency injection system.

If you wanna an example of interface you can get:

public interface ICloudStorage
{
    /// <summary>
    /// Upload a new file to the cloud storage
    /// </summary>
    /// <param name="file">File to be uploaded</param>
    /// <param name="folder">Folder where the file should be</param>
    /// <returns>file location path</returns>
    public Task<string> UploadFileAsync(IFormFile file, string? folder = null);

    /// <summary>
    /// delete a file that is on cloud storage by your path
    /// </summary>
    /// <param name="fullpath">path from root until the file</param>
    /// <returns></returns>
    public Task DeleteFileAsync(string fullpath);
}

and inject in your dependencies like in .NET CORE 7

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddSingleton<ICloudStorage, S3>();

Setting up the AWS credentials

Make sure you have your AWS credentials configured in your machine.

Now, add your settings to the appsettings.Development.json like:

{
  "AWS_S3": {
    "Profile": "default",
    "Region": "us-east-2"
  }
}

the Profile and Region should be your bucket Profile and Region.

Then, let's install the needed packages:

installing the AWSSDK.S3

dotnet add package AWSSDK.S3

installing the AWSSDK.Extensions.NETCore.Setup to setup dependency injection

dotnet add package AWSSDK.Extensions.NETCore.Setup

now, let's inject the necessary stuff to work with s3:

builder.Services.AddAWSService<IAmazonS3>();

and set the default aws credentials:

var awsOptions = builder.Configuration.GetAWSOptions("AWS_S3");

services.AddDefaultAWSOptions(awsOptions);

and, done.

in any of your controllers (for example) you can add the ICloudStorage interface as parameter type, and you should have access to the methods successfully