This creates a connection so that you can interact with the server.
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.
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
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.
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!
AWS::S3::Bucket.delete('my-new-bucket')
AWS::S3::Bucket.delete('my-new-bucket', :force => true)
This creates a file hello.txt with the string "Hello World!"
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.
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/
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
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).
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