This repository contains AWS SDK code examples used in the public AWS documentation repositories. You can also browse the AWS Code Sample Catalog.

Programming language: Java
License: Apache License 2.0
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AWS SDK Code Examples

Here, you'll find examples of how to use the various SDKs that AWS provides for interacting with its services.

These examples appear in the AWS documentation. For more information on getting started with the SDKs for AWS, see Tools to Build on AWS.

Prerequisites for all AWS SDKs

To use the examples in this documentation, you must have an AWS account. For more information about creating an account, see AWS Free Tier.

Configuring the AWS SDKs

AWS SDKs must be configured with the AWS Access Key ID, AWS Secret Key. In some cases, you need a Session ID.

We recommend using the AWS Command Line Interface (AWS CLI) to complete the configuration. Most AWS SDKs use the configuration created by the AWS CLI. To configure the AWS CLI, use the following command:

   aws configure

The preceding command will create or update the file $HOME/.aws/credentials, which is used by the SDKs where applicable. For more information, see Configuration and credential file settings in the AWS Command Line Interface User Guide.

Generally, the AWS SDKs look for configuration information in the following places, in this order:

  1. Within $HOME/.aws/credentials, in the default profile
  2. Within $HOME/.aws/credentials, in the profile defined by the AWS_PROFILE environment variable
  3. The AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, and (if defined,) AWS_SESSION_TOKEN environment variables.
  4. An SDK-specific location such as the Java SDK system property aws.accessKeyId and aws.secretKey
  5. Credentials specified directly to the SDK, such as AWSBasicCredentials in the Java V2 SDK

If you are unsure, see the documentation for the specific SDK that you're using.

⚠️ Important

Running these code examples might result in charges to your AWS account. Many examples involve services that are charged on a per-use basis, such as Amazon Simple Email Service (Amazon SES). Other examples might create resources that have long-term costs with services such as Amazon Simple Storage Service Glacier (Amazon S3 Glacier). For more information, see AWS Pricing.

Some examples modify or delete resources, such as AWS Identity and Access Management (IAM) users and Amazon S3 bucket contents or previous versions. It is your responsibility to do the following:

  • Be aware of the resources that these examples create or delete
  • Be aware of the costs that might be charged to your account as a result
  • Back up your important data

SDKs and support status

Each SDK, and its respective examples, has one of the following support statuses:

  • Currently maintained
  • In preview
  • No longer maintained

Do not use preview examples in any type of production environment. SDKs that are in preview might not be stable or consistent, and their respective SDK examples might not be up-to-date or fully tested.

Examples for SDKs that are no longer maintained are not likely to be current and might not follow current best practices. These examples are retained for reference purposes.

This repo contains top-level folders of code examples for each SDK language. For example, the cpp folder is for the AWS SDK for C++, and the python folder is for the AWS SDK for Python (Boto3). Preview SDK paths are subject to change.

The README file in each SDK language folder explains how to build and run the examples in that folder.

Within each SDK language folder, the example_code folder contains examples organized by AWS service. Each AWS service folder is named for its corresponding AWS CLI command. or example, the s3 folder contains Amazon S3 examples. For a list of AWS service commands, see Available services in the AWS CLI Command Reference.

Examples for currently maintained SDKs

The code examples are organized by AWS SDK or AWS programming tool. The following list shows some of the top-level folders:

  • cpp for the latest version of the AWS SDK for C++ (version 1)
  • dotnetv3 for the latest version of the AWS SDK for .NET (version 3.5 and later)
  • gov2 for the latest version of the AWS SDK for Go (version 2)
  • javav2 for the latest version of the AWS SDK for Java (version 2)
  • javascriptv3 for the latest version of the AWS SDK for JavaScript (version 3)
  • php for the latest version of the AWS SDK for PHP (version 3)
  • python for the latest version of the AWS SDK for Python (Boto3)
  • ruby for the latest version of the AWS SDK for Ruby (version 3)

Examples for SDKs currently in preview

  • .kotlin_alpha for the alpha version of the AWS SDK for Kotlin
  • swift for the preview release of the AWS SDK for Swift
  • rust_dev_preview for the developer preview version of the AWS SDK for Rust

Examples for SDKs that have been deprecated

Code examples for previous AWS SDK versions are archived in this repository but are no longer maintained. These include the following:

  • dotnet for versions of the AWS SDK for .NET prior to version 3.5
  • go for AWS SDK for Go version 1
  • java for AWS SDK for Java version 1
  • javascript for AWS SDK for JavaScript version 2

As AWS SDK major version numbers increment, this repository will more consistently reflect the version numbers in these folders. For example, imagine that the AWS SDK for Ruby moves to a version 4. A new rubyv4 folder is added. In this scenario, if AWS officially announces that version 3 of the AWS SDK for Ruby is no longer supported, then the previous ruby folder is deleted.

Other examples

Other top-level folders include the following:

  • aws-cli for script examples for use with the AWS Command Line Interface (AWS CLI).
  • cloudformation for example templates for use with AWS CloudFormation.
  • iam_policies for example policy documents for use with AWS Identity and Access Management (IAM).
  • lambda_functions for example function code for use with AWS Lambda.
  • typescript for TypeScript-based code examples for use with the AWS Cloud Development Kit (AWS CDK), and other AWS services. (For TypeScript-based code examples for use with the AWS SDK for JavaScript, see the javascriptv3 folder.)


If you plan to contribute examples for use in the documentation, see the `Guidelines for contributing](CONTRIBUTING.md).

Note that the AWS documentation team prefers to produce code examples that cover broader scenarios and use cases, versus simple code snippets that cover only individual API calls.

Additional Information

The scripts/ folder

The scripts folder contains scripts that the AWS documentation team uses internally to build the code examples into various AWS documentation sets.

Default branch name change

We have changed the default branch for this repo from master to main.

If the parent branch of your fork or branch is master, the following instructions tell you how to change the parent branch to main.

To show the parent branch, where BRANCH is the name of your branch:

  1. Navigate to the root of your branch or fork.
  2. Make sure your branch is the current branch (git checkout BRANCH).
  3. Run git branch --contains.

Changing a branch parent branch from master to main

To change the parent branch for your branch to main, navigate to the root of your branch and enter the following commands, where BRANCH is the name of your branch:

   git branch -m master main
   git fetch origin
   git branch -u origin/main main
   git remote set-head origin -a
   git remote update --prune

Changing a fork's default branch from master to main

GitHub will notify you when a parent branch has changed. To change your fork's default branch to main:

  1. Navigate to main web page of your fork.
  2. You should see a "The default branch on the parent repository has been renamed" message.
  3. Select the branch settings link.
  4. Change master to main.

Questions or issues?

If you have any questions, or if you experience an issue when retargeting your branch or fork, create a new GitHub issue and include as much detail as possible.

Copyright and license

All content in this repository, unless otherwise stated, is Copyright © Amazon Web Services, Inc. or its affiliates. All rights reserved.

Except where otherwise noted, all examples in this collection are licensed under the Apache license, version 2.0 (the "License"). The full license text is provided in the LICENSE file accompanying this repository.

*Note that all licence references and agreements mentioned in the aws-doc-sdk-examples README section above are relevant to that project's source code only.