Connecting Go Apps to Backblaze B2 with S3

This simple POC shows how you can use the Amazon AWS S3 modules to connect to Backblaze B2 as a starting point for building your own applications in Go.

Setting Up Your Environment

Make sure you have a running install of Go.

On a Mac, you can use the brew package manager to install Go with:

  brew install go

Move into your $GOPATH directory, clone the repo.

Configure Your Bucket and Connection Information

If you aren't already signed up for Backblaze B2 sign up for Backblaze B2 here - your first 10GB/month are always no charge, after that $5/TB/month.

1. Create your target bucket in your Backblaze Account Management Page.
2. Issue an application key that only has access to that bucket - be sure that the 'list all buckets' option is selected.

Make note of the server endpoint associated with the bucket, and edit your configuration in .env to match your bucket, server, and appkey details.

Run Your App

Issue go mod init, then run the app with:

  go run backblaze_example_app.go

The first time you run the app the AWS modules will be downloaded as needed.

A sample file is already included in dir_upload. When you run this app, you'll see the file upload, the bucket contents listed, then the file downloaded again to a separate folder. Finally, the delete function will be exercised and the file will be deleted from the bucket.

From here - you can explore passing in different filenames, dynamic filenames, and more.