doc/radosgw/s3/ruby.rst
.. _ruby:
AWS::SDK_ Examples (aws-sdk gem ~>2)You can set up the connection on global way:
.. code-block:: ruby
Aws.config.update(
endpoint: 'https://objects.dreamhost.com.',
access_key_id: 'my-access-key',
secret_access_key: 'my-secret-key',
force_path_style: true,
region: 'us-east-1'
)
and instantiate a client object:
.. code-block:: ruby
s3_client = Aws::S3::Client.new
This gets a list of buckets that you own. This also prints out the bucket name and creation date of each bucket.
.. code-block:: ruby
s3_client.list_buckets.buckets.each do |bucket|
puts "#{bucket.name}\t#{bucket.creation_date}"
end
The output will look something like this::
mahbuckat1 2011-04-21T18:05:39.000Z mahbuckat2 2011-04-21T18:05:48.000Z mahbuckat3 2011-04-21T18:07:18.000Z
This creates a new bucket called my-new-bucket
.. code-block:: ruby
s3_client.create_bucket(bucket: 'my-new-bucket')
If you want a private bucket:
acl option accepts: # private, public-read, public-read-write, authenticated-read
.. code-block:: ruby
s3_client.create_bucket(bucket: 'my-new-bucket', acl: 'private')
This gets a list of hashes with the contents of each object This also prints out each object's name, the file size, and last modified date.
.. code-block:: ruby
s3_client.get_objects(bucket: 'my-new-bucket').contents.each do |object|
puts "#{object.key}\t#{object.size}\t#{object.last-modified}"
end
The output will look something like this if the bucket has some files::
myphoto1.jpg 251262 2011-08-08T21:35:48.000Z myphoto2.jpg 262518 2011-08-08T21:38:01.000Z
.. note:: The bucket must be empty! Otherwise it won't work!
.. code-block:: ruby
s3_client.delete_bucket(bucket: 'my-new-bucket')
First, you need to clear the bucket:
.. code-block:: ruby
Aws::S3::Bucket.new('my-new-bucket', client: s3_client).clear!
after, you can destroy the bucket
.. code-block:: ruby
s3_client.delete_bucket(bucket: 'my-new-bucket')
This creates a file hello.txt with the string "Hello World!"
.. code-block:: ruby
s3_client.put_object(
key: 'hello.txt',
body: 'Hello World!',
bucket: 'my-new-bucket',
content_type: 'text/plain'
)
This makes the object hello.txt to be publicly readable, and secret_plans.txt
to be private.
.. code-block:: ruby
s3_client.put_object_acl(bucket: 'my-new-bucket', key: 'hello.txt', acl: 'public-read')
s3_client.put_object_acl(bucket: 'my-new-bucket', key: 'private.txt', acl: 'private')
This downloads the object poetry.pdf and saves it in
/home/larry/documents/
.. code-block:: ruby
s3_client.get_object(bucket: 'my-new-bucket', key: 'poetry.pdf', response_target: '/home/larry/documents/poetry.pdf')
This deletes the object goodbye.txt
.. code-block:: ruby
s3_client.delete_object(key: 'goodbye.txt', bucket: 'my-new-bucket')
This generates an unsigned download URL for hello.txt. This works
because we made hello.txt public by setting the ACL above.
This then generates a signed download URL for secret_plans.txt that
will work for 1 hour. Signed download URLs will work for the time
period even if the object is private (when the time period is up, the
URL will stop working).
.. code-block:: ruby
puts Aws::S3::Object.new(
key: 'hello.txt',
bucket_name: 'my-new-bucket',
client: s3_client
).public_url
puts Aws::S3::Object.new(
key: 'secret_plans.txt',
bucket_name: 'hermes_ceph_gem',
client: s3_client
).presigned_url(:get, expires_in: 60 * 60)
The output of this will look something like::
http://objects.dreamhost.com/my-bucket-name/hello.txt http://objects.dreamhost.com/my-bucket-name/secret_plans.txt?Signature=XXXXXXXXXXXXXXXXXXXXXXXXXXX&Expires=1316027075&AWSAccessKeyId=XXXXXXXXXXXXXXXXXXX
.. _AWS::SDK: http://docs.aws.amazon.com/sdkforruby/api/Aws/S3/Client.html
AWS::S3_ Examples (aws-s3 gem)This creates a connection so that you can interact with the server.
.. code-block:: ruby
AWS::S3::Base.establish_connection!(
:server => 'objects.dreamhost.com',
:use_ssl => true,
:access_key_id => 'my-access-key',
:secret_access_key => 'my-secret-key'
)
This gets a list of AWS::S3::Bucket_ objects that you own.
This also prints out the bucket name and creation date of each bucket.
.. code-block:: ruby
AWS::S3::Service.buckets.each do |bucket|
puts "#{bucket.name}\t#{bucket.creation_date}"
end
The output will look something like this::
mahbuckat1 2011-04-21T18:05:39.000Z mahbuckat2 2011-04-21T18:05:48.000Z mahbuckat3 2011-04-21T18:07:18.000Z
This creates a new bucket called my-new-bucket
.. code-block:: ruby
AWS::S3::Bucket.create('my-new-bucket')
This gets a list of hashes with the contents of each object This also prints out each object's name, the file size, and last modified date.
.. code-block:: ruby
new_bucket = AWS::S3::Bucket.find('my-new-bucket')
new_bucket.each do |object|
puts "#{object.key}\t#{object.about['content-length']}\t#{object.about['last-modified']}"
end
The output will look something like this if the bucket has some files::
myphoto1.jpg 251262 2011-08-08T21:35:48.000Z myphoto2.jpg 262518 2011-08-08T21:38:01.000Z
.. note:: The bucket must be empty! Otherwise it won't work!
.. code-block:: ruby
AWS::S3::Bucket.delete('my-new-bucket')
.. code-block:: ruby
AWS::S3::Bucket.delete('my-new-bucket', :force => true)
This creates a file hello.txt with the string "Hello World!"
.. code-block:: ruby
AWS::S3::S3Object.store(
'hello.txt',
'Hello World!',
'my-new-bucket',
:content_type => 'text/plain'
)
This makes the object hello.txt to be publicly readable, and secret_plans.txt
to be private.
.. code-block:: ruby
policy = AWS::S3::S3Object.acl('hello.txt', 'my-new-bucket')
policy.grants = [ AWS::S3::ACL::Grant.grant(:public_read) ]
AWS::S3::S3Object.acl('hello.txt', 'my-new-bucket', policy)
policy = AWS::S3::S3Object.acl('secret_plans.txt', 'my-new-bucket')
policy.grants = []
AWS::S3::S3Object.acl('secret_plans.txt', 'my-new-bucket', policy)
This downloads the object poetry.pdf and saves it in
/home/larry/documents/
.. code-block:: ruby
open('/home/larry/documents/poetry.pdf', 'w') do |file|
AWS::S3::S3Object.stream('poetry.pdf', 'my-new-bucket') do |chunk|
file.write(chunk)
end
end
This deletes the object goodbye.txt
.. code-block:: ruby
AWS::S3::S3Object.delete('goodbye.txt', 'my-new-bucket')
This generates an unsigned download URL for hello.txt. This works
because we made hello.txt public by setting the ACL above.
This then generates a signed download URL for secret_plans.txt that
will work for 1 hour. Signed download URLs will work for the time
period even if the object is private (when the time period is up, the
URL will stop working).
.. code-block:: ruby
puts AWS::S3::S3Object.url_for(
'hello.txt',
'my-new-bucket',
:authenticated => false
)
puts AWS::S3::S3Object.url_for(
'secret_plans.txt',
'my-new-bucket',
:expires_in => 60 * 60
)
The output of this will look something like::
http://objects.dreamhost.com/my-bucket-name/hello.txt http://objects.dreamhost.com/my-bucket-name/secret_plans.txt?Signature=XXXXXXXXXXXXXXXXXXXXXXXXXXX&Expires=1316027075&AWSAccessKeyId=XXXXXXXXXXXXXXXXXXX
.. _AWS::S3: http://amazon.rubyforge.org/
.. _AWS::S3::Bucket: http://amazon.rubyforge.org/doc/