class ActiveStorage::Service::S3Service
Attributes
bucket[R]
client[R]
Public Class Methods
new(access_key_id:, secret_access_key:, region:, bucket:)
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# File lib/active_storage/service/s3_service.rb, line 7 def initialize(access_key_id:, secret_access_key:, region:, bucket:) @client = Aws::S3::Resource.new(access_key_id: access_key_id, secret_access_key: secret_access_key, region: region) @bucket = @client.bucket(bucket) end
Public Instance Methods
delete(key)
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# File lib/active_storage/service/s3_service.rb, line 25 def delete(key) object_for(key).delete end
download(key)
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# File lib/active_storage/service/s3_service.rb, line 17 def download(key) if block_given? stream(key, &block) else object_for(key).get.body.read end end
exist?(key)
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# File lib/active_storage/service/s3_service.rb, line 29 def exist?(key) object_for(key).exists? end
upload(key, io, checksum: nil)
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# File lib/active_storage/service/s3_service.rb, line 12 def upload(key, io, checksum: nil) # FIXME: Ensure integrity by sending the checksum for service side verification object_for(key).put(body: io) end
url(key, expires_in:, disposition:, filename:)
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# File lib/active_storage/service/s3_service.rb, line 33 def url(key, expires_in:, disposition:, filename:) object_for(key).presigned_url :get, expires_in: expires_in, response_content_disposition: "#{disposition}; filename=\"#{filename}\"" end
Private Instance Methods
object_for(key)
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# File lib/active_storage/service/s3_service.rb, line 39 def object_for(key) bucket.object(key) end
stream(key, options = {}) { |read(merge(:range => "bytes=#{offset}-#{offset + chunk_size - 1}"))| ... }
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Reads the object for the given key in chunks, yielding each to the block.
# File lib/active_storage/service/s3_service.rb, line 44 def stream(key, options = {}, &block) object = object_for(key) chunk_size = 5.megabytes offset = 0 while offset < object.content_length yield object.read(options.merge(:range => "bytes=#{offset}-#{offset + chunk_size - 1}")) offset += chunk_size end end