Inside Active Storage: a code review of Rails' new framework

on YouTube ↗34m

" summary

Live code review shows Active Storage’s actual architecture: has_one_attached defines methods via class_eval, attach creates a Blob row in active_storage_blobs then calls a Service to move bytes, DiskService literally calls IO.copy_stream, S3 Service uses aws‑sdk‑s3, JavaScript direct uploads put blobs before final attach, variants use MiniMagick, purge_later enqueues an Active Job that calls the service delete, and migrations run with rails active_storage:install.

AI-written summary · about

" chapters (10)

1. 0:00Start
2. 2:30I work for a storage company
3. 2:54I will talk about Active Storage
4. 5:09How to use Active Storage
5. 10:42The main classes of Active Storage
6. 12:40What is ActiveStorage Service
7. 13:40Inside Active Storage Service (disk)
8. 15:03Inside ActiveStorage Service (S3)
9. 17:18What is ActiveStorage::Blob
10. 22:20How Active Storage works

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