Wraps the Microsoft Azure Storage Blob
Service
as an Active Storage service. See ActiveStorage::Service
for the generic API documentation that applies to all services.
Methods
- delete
- delete_prefixed
- download
- download_chunk
- exist?
- headers_for_direct_upload
- new
- upload
- url_for_direct_upload
Attributes
[R] | client | |
[R] | container | |
[R] | signer |
Class Public methods
new(storage_account_name:, storage_access_key:, container:, public: false, **options)
📝 Source code
# File activestorage/lib/active_storage/service/azure_storage_service.rb, line 15
def initialize(storage_account_name:, storage_access_key:, container:, public: false, **options)
@client = Azure::Storage::Blob::BlobService.create(storage_account_name: storage_account_name, storage_access_key: storage_access_key, **options)
@signer = Azure::Storage::Common::Core::Auth::SharedAccessSignature.new(storage_account_name, storage_access_key)
@container = container
@public = public
end
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Instance Public methods
delete(key)
📝 Source code
# File activestorage/lib/active_storage/service/azure_storage_service.rb, line 56
def delete(key)
instrument :delete, key: key do
client.delete_blob(container, key)
rescue Azure::Core::Http::HTTPError => e
raise unless e.type == "BlobNotFound"
# Ignore files already deleted
end
end
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delete_prefixed(prefix)
📝 Source code
# File activestorage/lib/active_storage/service/azure_storage_service.rb, line 65
def delete_prefixed(prefix)
instrument :delete_prefixed, prefix: prefix do
marker = nil
loop do
results = client.list_blobs(container, prefix: prefix, marker: marker)
results.each do |blob|
client.delete_blob(container, blob.name)
end
break unless marker = results.continuation_token.presence
end
end
end
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download(key, &block)
📝 Source code
# File activestorage/lib/active_storage/service/azure_storage_service.rb, line 32
def download(key, &block)
if block_given?
instrument :streaming_download, key: key do
stream(key, &block)
end
else
instrument :download, key: key do
handle_errors do
_, io = client.get_blob(container, key)
io.force_encoding(Encoding::BINARY)
end
end
end
end
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download_chunk(key, range)
📝 Source code
# File activestorage/lib/active_storage/service/azure_storage_service.rb, line 47
def download_chunk(key, range)
instrument :download_chunk, key: key, range: range do
handle_errors do
_, io = client.get_blob(container, key, start_range: range.begin, end_range: range.exclude_end? ? range.end - 1 : range.end)
io.force_encoding(Encoding::BINARY)
end
end
end
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exist?(key)
📝 Source code
# File activestorage/lib/active_storage/service/azure_storage_service.rb, line 81
def exist?(key)
instrument :exist, key: key do |payload|
answer = blob_for(key).present?
payload[:exist] = answer
answer
end
end
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headers_for_direct_upload(key, content_type:, checksum:, filename: nil, disposition: nil, **)
📝 Source code
# File activestorage/lib/active_storage/service/azure_storage_service.rb, line 104
def headers_for_direct_upload(key, content_type:, checksum:, filename: nil, disposition: nil, **)
content_disposition = content_disposition_with(type: disposition, filename: filename) if filename
{ "Content-Type" => content_type, "Content-MD5" => checksum, "x-ms-blob-content-disposition" => content_disposition, "x-ms-blob-type" => "BlockBlob" }
end
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upload(key, io, checksum: nil, filename: nil, content_type: nil, disposition: nil, **)
📝 Source code
# File activestorage/lib/active_storage/service/azure_storage_service.rb, line 22
def upload(key, io, checksum: nil, filename: nil, content_type: nil, disposition: nil, **)
instrument :upload, key: key, checksum: checksum do
handle_errors do
content_disposition = content_disposition_with(filename: filename, type: disposition) if disposition && filename
client.create_block_blob(container, key, IO.try_convert(io) || io, content_md5: checksum, content_type: content_type, content_disposition: content_disposition)
end
end
end
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url_for_direct_upload(key, expires_in:, content_type:, content_length:, checksum:)
📝 Source code
# File activestorage/lib/active_storage/service/azure_storage_service.rb, line 89
def url_for_direct_upload(key, expires_in:, content_type:, content_length:, checksum:)
instrument :url, key: key do |payload|
generated_url = signer.signed_uri(
uri_for(key), false,
service: "b",
permissions: "rw",
expiry: format_expiry(expires_in)
).to_s
payload[:url] = generated_url
generated_url
end
end
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