Class: ActiveStorage::Service::GCSService
Overview
Active Storage GCS Service
Wraps the Google Cloud Storage as an Active Storage service. See ActiveStorage::Service for the generic API documentation that applies to all services.
Defined Under Namespace
Classes: MetadataServerError, MetadataServerNotFoundError
Instance Attribute Summary
#name
Instance Method Summary
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#compose(source_keys, destination_key, filename: nil, content_type: nil, disposition: nil, custom_metadata: {}) ⇒ Object
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#delete(key) ⇒ Object
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#delete_prefixed(prefix) ⇒ Object
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#download(key, &block) ⇒ Object
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#download_chunk(key, range) ⇒ Object
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#exist?(key) ⇒ Boolean
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#headers_for_direct_upload(key, checksum:, filename: nil, disposition: nil, custom_metadata: {}) ⇒ Object
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#initialize(public: false, **config) ⇒ GCSService
constructor
A new instance of GCSService.
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#update_metadata(key, content_type:, disposition: nil, filename: nil, custom_metadata: {}) ⇒ Object
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#upload(key, io, checksum: nil, content_type: nil, disposition: nil, filename: nil, custom_metadata: {}) ⇒ Object
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#url_for_direct_upload(key, expires_in:, checksum:, custom_metadata: {}) ⇒ Object
build, configure, #open, #public?, #url
#autoload, #autoload_at, #autoload_under, #eager_autoload, #eager_load!
Constructor Details
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#initialize(public: false, **config) ⇒ GCSService
Returns a new instance of GCSService.
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# File 'activestorage/lib/active_storage/service/gcs_service.rb', line 16
def initialize(public: false, **config)
@config = config
@public = public
end
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Instance Method Details
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#compose(source_keys, destination_key, filename: nil, content_type: nil, disposition: nil, custom_metadata: {}) ⇒ Object
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# File 'activestorage/lib/active_storage/service/gcs_service.rb', line 139
def compose(source_keys, destination_key, filename: nil, content_type: nil, disposition: nil, custom_metadata: {})
bucket.compose(source_keys, destination_key).update do |file|
file.content_type = content_type
file.content_disposition = content_disposition_with(type: disposition, filename: filename) if disposition && filename
file.metadata = custom_metadata
end
end
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# File 'activestorage/lib/active_storage/service/gcs_service.rb', line 66
def delete(key)
instrument :delete, key: key do
file_for(key).delete
rescue Google::Cloud::NotFoundError
end
end
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# File 'activestorage/lib/active_storage/service/gcs_service.rb', line 74
def delete_prefixed(prefix)
instrument :delete_prefixed, prefix: prefix do
bucket.files(prefix: prefix).all do |file|
file.delete
rescue Google::Cloud::NotFoundError
end
end
end
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# File 'activestorage/lib/active_storage/service/gcs_service.rb', line 34
def download(key, &block)
if block_given?
instrument :streaming_download, key: key do
stream(key, &block)
end
else
instrument :download, key: key do
file_for(key).download.string
rescue Google::Cloud::NotFoundError
raise ActiveStorage::FileNotFoundError
end
end
end
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#download_chunk(key, range) ⇒ Object
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# File 'activestorage/lib/active_storage/service/gcs_service.rb', line 58
def download_chunk(key, range)
instrument :download_chunk, key: key, range: range do
file_for(key).download(range: range).string
rescue Google::Cloud::NotFoundError
raise ActiveStorage::FileNotFoundError
end
end
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#exist?(key) ⇒ Boolean
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# File 'activestorage/lib/active_storage/service/gcs_service.rb', line 84
def exist?(key)
instrument :exist, key: key do |payload|
answer = file_for(key).exists?
payload[:exist] = answer
answer
end
end
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# File 'activestorage/lib/active_storage/service/gcs_service.rb', line 128
def (key, checksum:, filename: nil, disposition: nil, custom_metadata: {}, **)
content_disposition = content_disposition_with(type: disposition, filename: filename) if filename
= { "Content-MD5" => checksum, "Content-Disposition" => content_disposition, **(custom_metadata) }
if @config[:cache_control].present?
["Cache-Control"] = @config[:cache_control]
end
end
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# File 'activestorage/lib/active_storage/service/gcs_service.rb', line 48
def update_metadata(key, content_type:, disposition: nil, filename: nil, custom_metadata: {})
instrument :update_metadata, key: key, content_type: content_type, disposition: disposition do
file_for(key).update do |file|
file.content_type = content_type
file.content_disposition = content_disposition_with(type: disposition, filename: filename) if disposition && filename
file.metadata = custom_metadata
end
end
end
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#upload(key, io, checksum: nil, content_type: nil, disposition: nil, filename: nil, custom_metadata: {}) ⇒ Object
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# File 'activestorage/lib/active_storage/service/gcs_service.rb', line 21
def upload(key, io, checksum: nil, content_type: nil, disposition: nil, filename: nil, custom_metadata: {})
instrument :upload, key: key, checksum: checksum do
content_disposition = content_disposition_with(type: disposition, filename: filename) if disposition && filename
bucket.create_file(io, key, md5: checksum, cache_control: @config[:cache_control], content_type: content_type, content_disposition: content_disposition, metadata: custom_metadata)
rescue Google::Cloud::InvalidArgumentError
raise ActiveStorage::IntegrityError
end
end
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#url_for_direct_upload(key, expires_in:, checksum:, custom_metadata: {}) ⇒ Object
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# File 'activestorage/lib/active_storage/service/gcs_service.rb', line 92
def url_for_direct_upload(key, expires_in:, checksum:, custom_metadata: {}, **)
instrument :url, key: key do |payload|
= {}
version = :v2
if @config[:cache_control].present?
["Cache-Control"] = @config[:cache_control]
version = :v4
end
.merge!((custom_metadata))
args = {
content_md5: checksum,
expires: expires_in,
headers: ,
method: "PUT",
version: version,
}
if @config[:iam]
args[:issuer] = issuer
args[:signer] = signer
end
generated_url = bucket.signed_url(key, **args)
payload[:url] = generated_url
generated_url
end
end
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