AWS SDK Core

This library is in a developer preview period.

We are working on version 2 of the official AWS SDK for Ruby. This library is the first part of our v2 strategy. AWS SDK Core is an updated set of service clients. Our goal is to make them more flexible and extensible than the clients in version 1 of the Ruby SDK.

For version 1.0 of the Ruby SDK, see aws/aws-sdk-ruby.

Links of Interest

• Documentation
• Release Notes
• Issues
• Forums
• License

Installation

You can install the AWS SDK Core from rubygems:

gem install aws-sdk-core --pre

If you are using Bundler, we recommend that you express a major version dependency (this library uses semantic versioning):

gem 'aws-sdk-core', '~> 2.0'

Until the final release becomes available on Rubygems, leave off the version dependency in your Gemfile so Bundler can find it.

Note: AWS SDK Core requires Ruby 1.9.3+.

Configuration

At a minimum, you need to configure your AWS account access credentials and a default region. You can supply these globally or per service object.

require 'aws-sdk-core'

# Aws.config is used for default configuration.
# You can construct service object with the same options.
Aws.config = { access_key_id: '...', secret_access_key: '...', region: 'us-west-2' }

Additionally, the SDK will attempt to load these options from ENV:

export AWS_ACCESS_KEY_ID='...'
export AWS_SECRET_ACCESS_KEY='...'
export AWS_REGION='us-west-2'

Basic Usage

To make a request, you need to construct a service client.

s3 = Aws::S3.new
s3 = Aws.s3 # helper method returns a new client

Each client provides one operation per API operation. Refer to the API documentation for a complete list of available methods.

# get a list of buckets in Amazon S3
resp = s3.list_buckets
puts resp.buckets.map(&:name)

API methods each accept a hash of params and return a structured response.

resp = s3.list_objects(bucket: 'aws-sdk-core', max_keys: 2)
resp.contents.each do |object|
  puts "#{object.key} => #{object.etag}"
end

Paging Responses

Many AWS operations limit the number of results returned with each response. A simple paging interface is provided that works with every AWS request.

# yields once per response, even works with non-paged requests
s3.list_objects(bucket:'aws-sdk').each do |resp|
  puts resp.contents.map(&:key)
end

If you prefer to control paging yourself, all returned responses have the same helper methods:

# make a request that returns a truncated response
resp = s3.list_objects(bucket:'aws-sdk')

resp.last_page? #=> false
resp.next_page? #=> true
resp = resp.next_page # send a request for the next response page
resp = resp.next_page until resp.last_page?

Interactive Console

AWS SDK Core ships with a REPL that acts as an interactive console. You can access the REPL by running aws.rb from the command line.

$ aws.rb
Aws> ec2.describe_instances.reservations.first.instances.first
<struct
 instance_id="i-1234567",
 image_id="ami-7654321",
 state=<struct  code=16, name="running">,
 ...>

Call #service_classes to get a list of available service helpers and the class they construct.

Aws> service_classes
{:autoscaling=>Aws::AutoScaling,
 :cloudformation=>Aws::CloudFormation,
 :cloudfront=>Aws::CloudFront,
 :cloudsearch=>Aws::CloudSearch,
 ...
 :swf=>Aws::SWF}

Versioning

This project uses semantic versioning. When the project leaves the developer preview state, we will continue by versioning from 2.0. Until then, all versions will be suffixed by a release candidate version.

Supported Services

Service Name	Service Class	API Versions
Amazon CloudFront	Aws::CloudFront	2012-05-05 — 2013-08-26
Amazon CloudSearch	Aws::CloudSearch	2011-02-01
Amazon CloudWatch	Aws::CloudWatch	2010-08-01
Amazon DynamoDB	Aws::DynamoDB	2011-12-05 — 2012-08-10
Amazon Elastic Compute Cloud	Aws::EC2	2013-06-15 — 2013-10-01
Amazon Elastic MapReduce	Aws::EMR	2009-03-31
Amazon Elastic Transcoder	Aws::ElasticTranscoder	2012-09-25
Amazon ElastiCache	Aws::ElastiCache	2012-11-15 — 2013-06-15
Amazon Glacier	Aws::Glacier	2012-06-01
Amazon Kinesis	Aws::Kinesis	2013-12-02
Amazon Redshift	Aws::Redshift	2012-12-01
Amazon Relational Database Service	Aws::RDS	2013-01-10 — 2013-05-15
Amazon Route 53	Aws::Route53	2012-12-12
Amazon Simple Email Service	Aws::SES	2010-12-01
Amazon Simple Notification Service	Aws::SNS	2010-03-31
Amazon Simple Queue Service	Aws::SQS	2012-11-05
Amazon Simple Storage Service	Aws::S3	2006-03-01
Amazon Simple Workflow Service	Aws::SWF	2012-01-25
Amazon SimpleDB	Aws::SDB	2009-04-15
Auto Scaling	Aws::AutoScaling	2011-01-01
AWS CloudFormation	Aws::CloudFormation	2010-05-15
AWS Data Pipeline	Aws::DataPipeline	2012-10-29
AWS Direct Connect	Aws::DirectConnect	2012-10-25
AWS Elastic Beanstalk	Aws::ElasticBeanstalk	2010-12-01
AWS Identity and Access Management	Aws::IAM	2010-05-08
AWS Import/Export	Aws::ImportExport	2010-06-01
AWS OpsWorks	Aws::OpsWorks	2013-02-18
AWS Security Token Service	Aws::STS	2011-06-15
AWS Storage Gateway	Aws::StorageGateway	2012-06-30 — 2013-06-30
AWS Support	Aws::Support	2013-04-15
Elastic Load Balancing	Aws::ElasticLoadBalancing	2012-06-01

License

This library is distributed under the apache license, version 2.0

copyright 2013. amazon web services, inc. all rights reserved.

licensed under the apache license, version 2.0 (the "license");
you may not use this file except in compliance with the license.
you may obtain a copy of the license at

    http://www.apache.org/licenses/license-2.0

unless required by applicable law or agreed to in writing, software
distributed under the license is distributed on an "as is" basis,
without warranties or conditions of any kind, either express or implied.
see the license for the specific language governing permissions and
limitations under the license.