What is AWS Transfer Manager directory support in Ruby SDK?

It's new in aws-sdk-s3 1.215: `upload_directory` and `download_directory` methods for bulk S3 transfers , with recursion, filters, parallelism, and multipart auto-handling—no manual scripting.

How do I upload a directory to S3 using Ruby AWS SDK?

`gem 'aws-sdk-s3', '>= 1.215'`; `tm = Aws::S3::TransferManager.new`; `tm.upload_directory('/local/dir', bucket: 'my-bucket', recursive: true)`. Returns completed/failed counts.

Does AWS Ruby Transfer Manager handle errors during directory upload?

Yes—default raises on fail (no cleanup). Use `ignore_failure: true` to continue, check `result[:errors]` for details on stragglers.

☁️ Cloud & Infrastructure

AWS Ruby SDK's Transfer Manager Tackles Directories—One Call Ends the Script Hell

Ruby devs wrestling with S3 directories? AWS just dropped directory support in Transfer Manager (v1.215)—one method call handles recursion, parallelism, and failures. But is it the bulk savior it's hyped as?

theAIcatchup Apr 10, 2026 4 min read

Ruby code snippet uploading directory to AWS S3 via Transfer Manager

⚡ Key Takeaways

One-call directory uploads/downloads to S3 with built-in parallelism and multipart—no more manual loops. 𝕏
Filters, recursion, error tolerance make it prod-ready; beats CLI subprocesses for embedded Ruby. 𝕏
Late but welcome for Ruby—expect fewer custom gems as official tooling matures. 𝕏

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#AWS SDK Ruby #S3 Transfer Manager #bulk S3 transfers #directory upload

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Originally reported by AWS Developer Blog

⚡ Key Takeaways

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