Tag: Release

Announcing the Modularized AWS SDK for Ruby (Version 3)

by Alex Wood | on | in Ruby | Permalink | Comments |  Share

We’re excited to announce today’s stable release of version 3 of the AWS SDK for Ruby. The SDK is now available with over 100 service-specific gems (starting with aws-sdk-*, such as aws-sdk-s3) on RubyGems. You can find a full list of available service gems can be found at our GitHub landing page.


Version 3 of the AWS SDK for Ruby modularizes the monolithic SDK into service-specific gems, for example, aws-sdk-s3 and aws-sdk-dynamodb. Now each service gem uses strict semantic versioning, along with the benefits of continuous delivery of AWS API updates. With modularization, you can pick and choose which service gems your application or library requires, and update service gems independently of each other.

These new service-specific gems use statically generated code, rather than runtime-generated clients and types. This provides human-readable stack traces and code for API clients. Additionally, version 3 eliminates many thread safety issues by removing Ruby autoload statements. When you require a service gem, such as aws-sdk-ec2, all of the code is loaded upfront, avoiding sync issues with autoload.

Furthermore, the SDK provides AWS Signature Version 4 signing functionality as a separate gem aws-sigv4. This gem provides flexible signing usage for both AWS requests and customized scenarios.


We’ve provided a detailed upgrading guide with this release, which covers different upgrade scenarios. In short, the public-facing APIs are compatible, and so changes you need to make are focused on your Gemfile and require statements.

Most users of the SDK have a setup similar to this:

# Gemfile
gem 'aws-sdk', '~> 2'
# Code Files
require 'aws-sdk'

s3 = Aws::S3::Client.new

ddb = Aws::DynamoDB::Client.new

# etc.

If that’s you, the quickest migration path is to simply change your Gemfile like so:

# Gemfile
gem 'aws-sdk', '~> 3'

However, this will pull in many new dependencies, as each service client has its own individual gem. As a direct user, you can also change to using only the service gems actually required by your project, which is the recommended path. This would involve a change to both your Gemfile and to the code files where your require statements live, like so:

# Gemfile
gem 'aws-sdk-s3', '~> 1'
gem 'aws-sdk-dynamodb', '~> 1'
# Code Files
require 'aws-sdk-s3'
require 'aws-sdk-dynamodb'

s3 = Aws::S3::Client.new
ddb = Aws::DynamoDB::Client.new

# etc.

Other upgrade cases are covered in the guide.


Please share your questions, comments, issues, etc. with us on GitHub. You can also catch us in our Gitter channel.

Version 3 of the AWS SDK for PHP

by Jeremy Lindblom | on | in PHP | Permalink | Comments |  Share

Last October, we announced the Developer Preview of Version 3 of the AWS SDK for PHP. We even presented about it at AWS re:Invent last November. We are grateful for your early feedback and support. Since last fall, we’ve been hard at work on improving, testing, and documenting Version 3 to get it ready for a stable release. We’re excited to announce that Version 3 of the AWS SDK for PHP is now generally available via Composer and on GitHub.

Version 3 of the SDK (V3) represents a significant effort to improve the capabilities of the SDK, incorporate over two years of customer feedback, upgrade our dependencies, improve performance, and adopt the latest PHP standards.

What we’re excited about

We’ve made many improvements to V3, even since our blog post about the Developer Preview (check out that post if you haven’t already). There are also some things that have changed or have been removed since Version 2 of the SDK (V2). We encourage you to take a look at our V3 Migration Guide for all the details about what has changed.

V3 has less code and better performance than V2 and is using the latest version of the Guzzle HTTP library. It also has some exciting new features and improvements.

Asynchronous requests and promises

V3 allows you to execute operations asynchronously. This not only means that it is easier to do concurrent requests, it’s also easier to create asynchronous and cooperative workflows. We use Promises, the basic building block of our asynchronous features, all throughout the SDK’s core. We also use them to implement the higher-level abstractions SDK, including Command Pools, Paginators, Waiters, and service-specific features like the S3 MultipartUploader. That means that almost every feature of the SDK can be used in an asynchronous way.

To execute an operation asynchronously, you simply add "Async" as a suffix to your method call.

// The SYNCHRONOUS (normal) way:

// Executing an operation returns a Result object.
$result = $s3Client->putObject([
    'Bucket' => 'your-bucket',
    'Key'    => 'docs/file.pdf',
    'Body'   => fopen('/path/to/file.pdf', 'r'),

// You can access the result data from the Result object.
echo $result['ObjectURL'];


// Executing an operation asynchronously returns a Promise object.
$promise = $s3Client->putObjectAsync([
    'Bucket' => 'your-bucket',
    'Key'    => 'docs/file.pdf',
    'Body'   => fopen('/path/to/file.pdf', 'r'),

// Wait for the operation to complete to get the Result object.
$result = $promise->wait();

// Then you can access the result data like normal.
echo $result['ObjectURL'];

The true power of using asynchronous requests is being able to create asynchronous workflows. For example, if you wanted to create a DynamoDB table, wait until it is ACTIVE (using Waiters), and then write some data to it, you can use the then() method of the Promise object to chain those actions together.

    'TableName' => $table,
    // Other params...
])->then(function () use ($client, $table) {
    return $client->getWaiter('TableExists', [
        'TableName' => $table,
})->then(function () use ($client, $table) {
    return $client->putItemAsync([
        'TableName' => $table,
        'Item' => [
            // Item attributes...

Please take a look at our detailed guide on promises for more information.

PSR-7 compliance and decoupling of the HTTP layer

The PHP-FIG has recently announced the acceptance of PSR-7, a "PHP Standard Recommendation" that defines interfaces for HTTP messages (e.g., Request and Response objects). We have adopted these interfaces for how we represent HTTP requests within the SDK, and it has allowed us to decouple the SDK from Guzzle such that V3 will work with both Guzzle 5 and Guzzle 6. It’s also possible to write your own HTTP handler for the SDK that does not use Guzzle.

The SDK defaults to using Guzzle 6 to perform HTTP requests. Guzzle 6 comes with a number of improvements, including support for asynchronous requests, PSR-7 compliance, and swappable HTTP adapters (including a PHP stream wrapper implementation that can be used on systems where cURL is not available).

JMESPath querying of results and paginators

In V3, the Result object has a new method: search(). With this method you can query data in Result objects using JMESPath expressions. JMESPath is a query language for JSON, or, in our case, PHP arrays.

$result = $ec2Client->describeInstances();

JMESPath expressions can also be applied to Paginators in the same way. This will return a new Iterator that yields the result of the expression on every page of data.

$results = $s3->getPaginator('ListObjects', [
    'Bucket' => 'my-bucket',
foreach ($results->search('Contents[].Key') as $key) {
    echo $key . "n";

Time to code

We hope you will enjoy using Version 3 of the AWS SDK for PHP. Here are the links you need to get started:

Announcing V2 of the AWS SDK for Ruby

by Trevor Rowe | on | in Ruby | Permalink | Comments |  Share

I am excited to announce today’s stable release of version 2 of the AWS SDK for Ruby. It is available now as the aws-sdk gem on RubyGems.


Version 2 of the AWS SDK for Ruby, the aws-sdk gem, provides a number of powerful features for developers including:


Version 2 of the AWS SDK for Ruby uses a different namespace, making it possible to use version 1 and version 2 in the same application.

# Gemfile
gem 'aws-sdk', '~> 2'
gem 'aws-sdk-v1'

# code
require 'aws-sdk-v1'
require 'aws-sdk'

ec2_v1 = AWS::EC2.new # v1
ec2_v2 = Aws::EC2::Resource.new # v2

This allows you to start using the version 2 SDK today without changing existing code.


Please share your questions, comments, issues, etc. with us on GitHub. You can also catch us in our Gitter channel.

Preview the AWS Resource APIs for PHP

by Jeremy Lindblom | on | in PHP | Permalink | Comments |  Share

This year is just about over, but we are too excited to wait until the new year to share with you a feature we are developing for the AWS SDK for PHP. We are calling it the AWS Resource APIs for PHP. This feature is maintained as a separate package, but it acts as an extension to Version 3 of the AWS SDK for PHP.

As you know, the core SDK is composed of service client objects that have methods corresponding 1-to-1 with operations in the service’s API (e.g., Ec2Client::runInstances() method maps to the EC2 service’s RunInstances operation). The resource APIs build upon the SDK to add new types of objects that allow you to interact with the AWS service APIs in a more resource-oriented way. This allows you to use a more expressive syntax when working with AWS services, because you are acting on objects that understand their relationships with other resources and that encapsulate their identifying information.

Resource Objects

Resource objects each represent a single, identifiable AWS resource (e.g., an Amazon S3 bucket or an Amazon SQS queue). They contain information about how to identify the resource and load its data, the actions that can be performed on it, and the other resources to which it is related. Let’s take a look at a few examples showing how to interact with these resource objects.

First, let’s set up the Aws object, which acts as the starting point into the resource APIs.


require 'vendor/autoload.php';

use AwsResourceAws;

$aws = new Aws([
    'region'  => 'us-west-2',
    'version' => 'latest',
    'profile' => 'your-credential-profile',

(Note: The array of configuration options provided in the preceding example is the same as what you would provide when instantiating the AwsSdk object in the core SDK.)

You can access related resources by calling the related resource’s name as a method and passing in its identity.

$bucket = $aws->s3->bucket('your-bucket');
$object = $bucket->object('image/bird.jpg');

Accessing resources this way is evaluated lazily, so the preceding example does not actually make any API calls.

Once you access the data of a resource, an API call will be triggered to "load" the resource and fetch its data. To access a resource object’s data, you can access it like an array.

echo $object['LastModified'];

Performing Actions

You can perform actions on a resource by calling verb-like methods on the object.

// Create a bucket and object.
$bucket = $aws->s3->createBucket([
    'Bucket' => 'my-new-bucket'
$object = $bucket->putObject([
    'Key'  => 'images/image001.jpg',
    'Body' => fopen('/path/to/image.jpg', 'r'),

// Delete the bucket and object.

Because the resource’s identity is encapsulated within the resource object, you never have to specify it again once the object is created. This way, actions like $object->delete() do not need to require arguments.


Some resources have a "has many" type relationship with other resources. For example, an S3 bucket has many S3 objects. The AWS Resource APIs also allow you to work with resource collections.

foreach ($bucket->objects() as $object) {
    echo $object->delete();

Using the Resource APIs

We are currently working on providing API documentation for the AWS Resource APIs. Even without documentation, you can programmatically determine what methods are available on a resource object by calling the respondsTo method.

// Array
// (
//     [0] => create
//     [1] => delete
//     [2] => deleteObjects
//     [3] => putObject
//     [4] => multipartUploads
//     [5] => objectVersions
//     [6] => objects
//     [7] => bucketAcl
//     [8] => bucketCors
//     [9] => bucketLifecycle
//     [10] => bucketLogging
//     [11] => bucketPolicy
//     [12] => bucketNotification
//     [13] => bucketRequestPayment
//     [14] => bucketTagging
//     [15] => bucketVersioning
//     [16] => bucketWebsite
//     [17] => object
// )

// bool(true)

Check it Out!

To get started, you can install the AWS Resource APIs for PHP using Composer, by requiring the aws/aws-sdk-php-resources package in your project. The source code and README, are located in the awslabs/aws-sdk-php-resources repo on GitHub.

The initial preview release of the AWS Resource APIs supports the following services: Amazon EC2, Amazon Glacier, Amazon S3, Amazon SNS, Amazon SQS, AWS CloudFormation, and AWS Identity and Access Management (IAM). We will continue to add support for more APIs over this next year.

We’re eager to hear your feedback about this new feature! Please use the issue tracker to ask questions, provide feedback, or submit any issues or feature requests.

Version 3 Preview of the AWS SDK

by Jeremy Lindblom | on | in PHP | Permalink | Comments |  Share

We’re excited to introduce you to the preview release of Version 3 of the AWS SDK for PHP! As of today, the preview release of Version 3 (V3) is available on GitHub and via Composer.

Two years ago, we released Version 2 (V2) of the SDK. Since then, thousands of developers and companies have adopted it. We are sincerely grateful to all of our users and contributors. We have been constantly collecting your feedback and ideas, and continually watching the evolution of PHP, AWS, and the Guzzle library.

Earlier this year, we felt we could make significant improvements to the SDK, but only if we could break a few things. Since receiving a unanimously positive response to our blog post about updating to the latest version of Guzzle a few months ago, we’ve been working hard on V3, and we’re ready to share it with you.

What’s new?

The new version of the SDK provides a number of important benefits to AWS customers. It is smaller and faster, with improved performance for both serial and concurrent requests. It has several new features based on its use of the new Guzzle 5 library (which also includes the new features from Guzzle 4). The SDK will also, starting from V3, follow the official SemVer spec, so you can have complete confidence when setting version constraints in your projects’ composer.json files.

Let’s take a quick look at some of the new features.

Asynchronous requests

With V3, you can perform asynchronous operations, which allow you to more easily send requests concurrently. To achieve this, the SDK returns future result objects when you specify the @future parameter, which block only when they are accessed. For managing more robust asynchronous workflows, you can retrieve a promise from the future result, to perform logic once the result becomes available or an exception is thrown.


// Upload a file to your bucket in Amazon S3.
// Use '@future' to make the operation complete asynchronously.
$result = $s3Client->putObject([
    'Bucket' => 'your-bucket',
    'Key'    => 'docs/file.pdf',
    'Body'   => fopen('/path/to/file.pdf', 'r'),
    '@future' => true,

After creating a result using the @future attribute, you now have a future result object. You can use the data stored in the future in a blocking (or synchronous) manner by just using the result as normal (i.e., like a PHP array).

// Wait until the response has been received before accessing its data.
echo $result['ObjectURL'];

If you want to allow your requests to complete asynchronously, then you should use the promise API of the future result object. To retrieve the promise, you must use the then() method of the future result, and provide a callback to be completed when the promise is fulfilled. Promises allow you to more easily compose pipelines when dealing with asynchronous results. For example, we could use promises to save the Amazon S3 object’s URL to an item in an Amazon DynamoDB table, once the upload is complete.

// Note: $result is the result of the preceding example's PutObject operation.
    function ($s3Result) use ($ddbClient) {
        $ddbResult = $ddbClient->putItem([
            'TableName' => 'your-table',
            'Item' => [
                'topic' => ['S' => 'docs'],
                'time'  => ['N' => (string) time()],
                'url'   => ['S' => $s3Result['ObjectURL']],
            '@future' => true,

        // Don't break promise chains; return a value. In this case, we are returning
        // another promise, so the PutItem operation can complete asynchronously too.
        return $ddbResult->promise();
    function ($result) {
        echo "SUCCESS!n";
        return $result;
    function ($error) {
        echo "FAILED. " . $error->getMessage() . "n";
        // Forward the rejection by re-throwing it.
        throw $error;

The SDK uses the React/Promise library to provide the promise functionality, allowing for additional features such as joining and mapping promises.

JMESPath querying of results

The result object also has a new search() method that allows you to query the result data using JMESPath, a query language for JSON (or PHP arrays, in our case).


$result = $ec2Client->describeInstances();


Example output:

    [0] => i-xxxxxxxx
    [1] => i-yyyyyyyy
    [2] => i-zzzzzzzz

Swappable and custom HTTP adapters

In V3, cURL is no longer required, but is still used by the default HTTP adapter. However, you can use other HTTP adapters, like the one shipped with Guzzle that uses PHP’s HTTP stream wrapper. You can also write custom adapters, which opens up the possibility of creating an adapter that integrates with a non-blocking event loop like ReactPHP.


Paginators are a new feature in V3, that come as an addition to Iterators from V2. Paginators are similar to Iterators, except that they yield Result objects, instead of items within a result. This is nice, because it handles the tokens/markers for you, getting multiple pages of results, but gives you the flexibility to extract whatever data you want.

// List all "directories" and "files" in the bucket.
$paginator = $s3->getPaginator('ListObjects', [
    'Bucket' => 'my-bucket',
    'Delimiter' => '/'
foreach ($paginator as $result) {
    $jmespathExpr = '[CommonPrefixes[].Prefix, Contents[].Key][]';
    foreach ($result->search($jmespathExpr) as $item) {
        echo $item . "n";

Example output:

    [0] => dir1/
    [1] => dir2/
    [2] => file1
    [3] => file2

New event system

Version 3 features a new and improved event system. Command objects now have their own event emitter that is decoupled from the HTTP request events. There is also a new request "progress" event that can be used for tracking upload and download progress.

use GuzzleHttpEventProgressEvent;

$s3->getHttpClient()->getEmitter()->on('progress', function (ProgressEvent $e) {
    echo 'Uploaded ' . $e->uploaded . ' of ' . $e->uploadSize . "n";

   'Bucket' => $bucket,
   'Key'    => 'docs/file.pdf',
   'Body'   => fopen('/path/to/file.pdf', 'r'),

Example output:

Uploaded 0 of 5299866
Uploaded 16384 of 5299866
Uploaded 32768 of 5299866
Uploaded 5275648 of 5299866
Uploaded 5292032 of 5299866
Uploaded 5299866 of 5299866

New client options

For V3, we changed some of the options you provide when instantiating a client, but we added a few new options that may help you work with services more easily.

  • "debug" – Set to true to print out debug information as requests are being made. You’ll see how the Command and Request objects are affected during each event, and an adapter-specific wire log of the request.
  • "retries" – Set the maximum number of retries the client will perform on failed and throttled requests. The default has always been 3, but now it is easy to configure.

These options can be set when instantiating client.


$s3 = (new AwsSdk)->getS3([
    // Exist in Version 2 and 3
    'profile'  => 'my-credential-profile',
    'region'   => 'us-east-1',
    'version'  => 'latest',

    // New in Version 3
    'debug'    => true,
    'retries'  => 5,

What has changed?

To make all of these improvements for V3, we needed to make some backward-incompatible changes. However, the changes from Version 2 to Version 3 are much fewer than the changes from Version 1 to Version 2. In fact, much of the way you use the SDK will remain the same. For example, the following code for writing an item to an Amazon DynamoDB table looks exactly the same in both V2 and V3 of the SDK.

$result = $dynamoDbClient->putItem([
    'TableName' => 'Contacts',
    'Item'      => [
        'FirstName' => ['S' => 'Jeremy'],
        'LastName'  => ['S' => 'Lindblom'],
        'Birthday'  => ['M' => [
            'Month' => ['N' => '11'],
            'Date'  => ['N' => '24'],

There are two important changes though that you should be aware of upfront:

  1. V3 requires PHP 5.5 or higher and requires the use of Guzzle 5.
  2. You must now specify the API version (via the "version" client option) when you instantiate a client. This is important, because it allows you to lock-in to the API versions of the services you are using. This helps us and you maintain backward compatibility between future SDK releases, because you will be in charge of API versions you are using. Your code will never be impacted by new service API versions until you update your version setting. If this is not a concern for you, you can default to the latest API version by setting 'version' to 'latest' (this is essentially the default behavior of V2).

What next?

We hope you are excited for Version 3 of the SDK!

We look forward to your feedback as we continue to work towards a stable release. Please reach out to us in the comments, on GitHub, or via Twitter (@awsforphp). We plan to publish more blog posts in the near future to explain some of the new features in more detail. We have already published the API docs for V3, but we’ll be working on improving all the documentation for V3, including creating detailed migration and user guides. We’ll also be speaking about V3 in our session at AWS re:Invent.

We will continue updating and making regular releases for V2 on the "master" branch of the SDK’s GitHub repository. Our work on V3 will happen on a separate "v3" branch until we are ready for a stable release.

Version 3 can be installed via Composer using version 3.0.0-beta.1, or you can download the aws.phar or aws.zip on GitHub.

Release: AWS SDK for PHP – Version 2.6.12

by Jeremy Lindblom | on | in PHP | Permalink | Comments |  Share

We would like to announce the release of version 2.6.12 of the AWS SDK for PHP. This release adds support for new regions to the Kinesis client and new features to the AWS Support and AWS IAM clients.

Install the SDK

Release: AWS SDK for PHP – Version 2.6.11

by Michael Dowling | on | in PHP | Permalink | Comments |  Share

We would like to announce the release of version 2.6.11 of the AWS SDK for PHP.

  • Added support for Amazon Cognito Identity
  • Added support for Amazon Cognito Sync
  • Added support for Amazon CloudWatch Logs
  • Added support for editing existing health checks and associating health checks with tags to the Amazon Route 53 client
  • Added the ModifySubnetAttribute operation to the Amazon EC2 client

Install the SDK

Release: AWS SDK for PHP – Version 2.6.10

by Jeremy Lindblom | on | in PHP | Permalink | Comments |  Share

We would like to announce the release of version 2.6.10 of the AWS SDK for PHP. This release adds support for new regions to the AWS CloudTrail and Amazon Kinesis clients.

Install the SDK

Release: AWS SDK for PHP – Version 2.6.9

by Jeremy Lindblom | on | in PHP | Permalink | Comments |  Share

We would like to announce the release of version 2.6.9 of the AWS SDK for PHP. This release adds support for uploading document batches and submitting search and suggestion requests to an Amazon CloudSearch domain using the new CloudSearch Domain client. It also adds support for configuring delivery notifications to the Amazon SES client, and updates the Amazon CloudFront client to work with the latest API version.

  • Added support for the CloudSearchDomain client, which allows you to search and upload documents to your CloudSearch domains.
  • Added support for delivery notifications to the Amazon SES client.
  • Updated the CloudFront client to support the 2014-05-31 API.
  • Merged PR #316 as a better solution for issue #309.

Install the SDK

Release: AWS SDK for PHP – Version 2.6.8

by Jeremy Lindblom | on | in PHP | Permalink | Comments |  Share

We would like to announce the release of version 2.6.8 of the AWS SDK for PHP. This release updates the Amazon Elastic Transcoder and Amazon EMR clients to use the latest service descriptions, and fixes a few issues.

  • Added support for closed captions to the Elastic Transcoder client.
  • Added support for IAM roles to the Elastic MapReduce client.
  • Updated the S3 PostObject to ease customization.
  • Fixed an issue in some EC2 waiters by merging PR #306.
  • Fixed an issue with the DynamoDB WriteRequestBatch by merging PR #310.
  • Fixed issue #309, where the url_stat() logic in the S3 Stream Wrapper was affected by a change in the latest versions of PHP. If you are running version 5.4.29+, 5.5.13+, or 5.6.0+ of PHP, and you are using the S3 Stream Wrapper, you need to update your SDK in order to prevent runtime errors.

We also released version 2.6.7 last week, but forgot to mention it on the blog. Here are the changes from 2.6.7:

  • Added support for Amazon S3 server-side encryption using customer-provided encryption keys.
  • Updated the Amazon SNS client to support message attributes.
  • Updated the Amazon Redshift client to support new cluster parameters.
  • Updated PHPUnit dev dependency to 4.* to work around a PHP serializing bug.

Install the SDK