ri > ActiveStorage::Service

= ActiveStorage::Service < Object

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= Extended by:
ActiveSupport::Autoload (from /home/chedong/.local/share/rdoc)

(from /home/chedong/.local/share/rdoc)
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Abstract class serving as an interface for concrete services.

The available services are:

* Disk, to manage attachments saved directly on the hard drive.
* GCS, to manage attachments through Google Cloud Storage.
* S3, to manage attachments through Amazon S3.
* AzureStorage, to manage attachments through Microsoft Azure Storage.
* Mirror, to be able to use several services to manage attachments.

Inside a Rails application, you can set-up your services through the
generated config/storage.yml file and reference one of the
aforementioned constant under the service key. For example:

  local:
    service: Disk
    root: <%= Rails.root.join("storage") %>

You can checkout the service's constructor to know which keys are
required.

Then, in your application's configuration, you can specify the service
to use like this:

  config.active_storage.service = :local

If you are using Active Storage outside of a Ruby on Rails application,
you can configure the service to use like this:

  ActiveStorage::Blob.service = ActiveStorage::Service.configure(
    :Disk,
    root: Pathname("/foo/bar/storage")
  )
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= Class methods:

  configure

= Instance methods:

  delete
  delete_prefixed
  download
  download_chunk
  exist?
  headers_for_direct_upload
  name
  open
  public?
  update_metadata
  upload
  url
  url_for_direct_upload

= Attributes:

  attr_accessor name