This method is dangerous for large files because Ruby will attempt to load the entire file into your RAM before writing it to the disk. Efficient Download (Streaming to Disk)
Many file download URLs (like those from Amazon S3 or Google Cloud Storage) are temporary redirects. By default, Faraday does not follow redirects. You need to add the follow_redirects middleware. ruby faraday download file
To download a file using Faraday, you have two primary options: loading the entire file into memory (fine for small files) or streaming the content directly to disk (required for large files). Prerequisites First, ensure you have the Faraday gem installed: gem install faraday Simple Download (Memory-Based) This method is dangerous for large files because
Always open files in "write-binary" mode to prevent encoding issues. You need to add the follow_redirects middleware
Large downloads take time. Set a read_timeout to prevent the connection from hanging indefinitely.
For large files like ZIPs or videos, you should use Faraday’s streaming capabilities. This allows you to process the file in small "chunks," keeping your memory usage low and constant regardless of the file size.
require 'faraday' require 'faraday/follow_redirects' conn = Faraday.new do |f| f.response :follow_redirects f.adapter Faraday.default_adapter end response = conn.get('https://example.com') File.open('downloaded_file.zip', 'wb') f Use code with caution. Best Practices for Downloads