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FileUpload

The goal of this project was to create a POC for uploading big files (+-5Gb) to AWS S3. The memory usage should be limited, loading the whole file in memory is a no-go!

Another goal was to client-side encrypt the data before uploading it to a cloud, also without the need to load the whole file in memory.

This encryption system should be able to work with an external root key (Envelope Encryption). To mimic this behavior I used the DataProtection library for Microsoft.

Configuration

I have used the default configuration setup of ASP.NET Core & AWS SDK

E.g.

"environmentVariables": {
  "ASPNETCORE_ENVIRONMENT": "Development",
  "AWS_ACCESS_KEY_ID": "XXXXXXX",
  "AWS_SECRET_ACCESS_KEY": "XXXXXXX",
  "Aws:Region": "XXXXXXXXX",
  "Aws:BucketName": "XXXXXXXX"
}

Warning

This is absolutely not production ready. I don't have that much experience with multipart/form-data and with streaming in general. Also, the DataProtection library isn't setup for a production setting.