HARDCODE

  In one of my previous posts  Upload File to S3 Bucket API Using AWS .Net SDK  I explain how to upload a file to an S3 bucket and get the file path where your file was stored. Assuming that you have persisted this file path somewhere somehow, I will show you in this post how to download the file using the file path. Using the same set-up in my previous post linked above let's start with adding an interface method that performs the needed service. File Data When the S3 SDK gets you the object that exists in the file path and bucket name provided, it's in the form of a stream. You should have a content type so that you are able to tell the receiver of your API what type of file they are getting. Luckily, we can get this information from the Content-Type header from the response, but we need a model that can hold this piece of information. So, let's create a class named FileData which can hold the stream and the content type of the file received from S3. namespace Domain....

AWS has become an integral part of many software projects as it offers a wide variety of services that could help any project achieve their goals. The S3 bucket is one of those services. Using the SDK that AWS provides, managing files on your S3 bucket has never been easier and I will show you an example of how to upload a file to an S3 bucket. Let's create this API using traditional clean architecture and not using CQRS or MediatR like my previous post. Just because Command and Query offer a looser coupling but in smaller scale projects with not that much business logic and entity operations it wouldn't make sense to keep creating 2+ classes every time you would want to add a new entity action. So, let's start up with an interface for our AWS services class. Interface First, we add an interface so that the controller can use to call the upload service after providing it with a bucket name, path inside the bucket and of course the file itself but as a MemoryStream . namespa...