Useful for attaching small database-backed blobs to records. Good when you need small file upload support, but don't want to bother with a cloud service because you know you'll have low traffic/user counts. Uses a SHA256 digest to prevent duplicate blob uploads.
Nothing fancy. Just stores files and allows public access using the digest as a key. Respects HTTP Cache headers.
You probably want to put a CDN/Cache/RateLimit in front of the
"lazy_blobs#show" route because somebody could DOS your website
if all your workers are serving files from the database.
Basically this is a dumb idea, but setting up AWS buckets and permissions just to upload a dumb logo is :big_sigh_emoji:
Don't use this. I mean it.
I would use activestorage_database rather than lazy_blob_storage if I were starting a new project.
See:
lazy_blob_storage:install:migrations rake task.LazyBlobStorage.max_blob_size=If it's not obvious. This is for inclusion in a Rails app.
Built with Rails 6. It could probably work with Rails 4/5, too.
gem "lazy_blob_storage" to Gemfilerake lazy_blob_storage_engine:install:migrationsrake db:migratehas_lazy_attached :image in some modelf.file_field :image_upload to the form templateimage_tag @thing.lazy_attached_image_path or image_tag @thing.lazy_image_urlNote: LazyBlobsController respects HTTP cache directives
The gem is available as open source under the terms of the MIT License.
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We found that lazy_blob_storage demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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