Flexible File Storage in Elixir Using Backblaze B2

This article discusses how to upload files to the cloud using Elixir, focusing on implementing a flexible file storage system that works with both local storage and Backblaze B2. The approach is to define a storage behavior that allows for seamless switching between local and cloud storage options. The article begins by outlining the cost advantages of Backblaze B2 compared to AWS S3 and demonstrates how to set up local storage and Backblaze B2 through code examples. The implementation details include creating a behavior for storage modules, defining the storage system, and using the Backblaze B2 API for uploading and downloading files, making it suitable for development, testing, and production use.