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AWS SDK for iOS

Release CocoaPods Carthage compatible CircleCI Discord

The AWS SDK for iOS provides a library and documentation for developers to build connected mobile applications using AWS.

Features / APIs

  • Authentication: APIs and building blocks for developers who want to create user authentication experiences.
  • Analytics: Easily collect analytics data for your app. Analytics data includes user sessions and other custom events that you want to track in your app.
  • API: Provides a simple solution when making HTTP requests. It provides an automatic, lightweight signing process which complies with AWS Signature Version 4.
  • Storage: Provides a simple mechanism for managing user content for your app in public, protected or private storage buckets.
  • Push Notifications: Allows you to integrate push notifications in your app with Amazon Pinpoint targeting and campaign management support.
  • PubSub: Provides connectivity with cloud-based message-oriented middleware.
  • Generated AWS Service Interfaces: Provides direct interaction with any AWS service.

Visit our Web Site to learn more about Amplify Framework.

Setup

To get started with the AWS SDK for iOS, check out the Developer Guide for iOS. You can set up the SDK and start building a new project, or you integrate the SDK in an existing project. You can also run the samples to get a sense of how the SDK works.

To use the AWS SDK for iOS, you will need the following installed on your development machine:

  • Xcode 11.0 or later
  • iOS 9 or later

Include the SDK for iOS in an Existing Application

We have a couple samples applications which showcase how to use the AWS SDK for iOS. Please note that the code in these sample applications is not of production quality, and should be considered as exactly what we called them: samples.

There are several ways to integrate the AWS Mobile SDK for iOS into your own project:

You should use ONE and only one of these ways to import the AWS Mobile SDK. Importing the SDK in multiple ways loads duplicate copies of the SDK into the project and causes compiler/linker errors.

Note: If you are using XCFrameworks (i.e., either Swift Package Manager, Carthage, or Dynamic Frameworks), some modules are named with the XCF suffix to work around a Swift issue. AWSMobileClient is named as AWSMobileClientXCF and AWSLocation is named as AWSLocationXCF. To use the AWSMobileClient or AWSLocation SDKs, import them as:

import AWSMobileClientXCF
import AWSLocationXCF

and use it your app code without the XCF suffix.

AWSMobileClient.default().initialize() 
let locationClient = AWSLocation.default()

Swift Package Manager

  1. Swift Package Manager is distributed with Xcode. To start adding the AWS SDK to your iOS project, open your project in Xcode and select File > Swift Packages > Add Package Dependency.

    Add package dependency

  2. Enter the URL for the AWS SDK for iOS Swift Package Manager GitHub repo (https://github.com/aws-amplify/aws-sdk-ios-spm) into the search bar and click Next.

    Search for repo

    NOTE: This URL is not the main URL of the SDK. We maintain the Swift Package Manager manifest (Package.swift) file for this library in a separate repo so that apps that use the SDK do not have to download the entire source repository in order to consume the binary targets.

  3. You'll see the repository rules for which version of the SDK you want Swift Package Manager to install. Choose the first rule, Version, and select Up to Next Minor as it will use the latest compatible version of the dependency that can be detected from the main branch, then click Next.

    Dependency version options

    NOTE: The AWS Mobile SDK for iOS does not use Semantic Versioning, and may introduce breaking API changes on minor version releases. We recommend setting your Version rule to Up to Next Minor and evaluating minor version releases to ensure they are compatible with your app.

  4. Choose which of the libraries you want added to your project. Always select the AWSCore SDK. The remaining SDKs to install will vary based on which SDK you're trying to install. Most SDKs rely only on AWSCore, but for a full dependency list, see the README-spm-support file.

    Note: AWSLex is not currently supported for the arm64 architecture through Swift Package Manager due to conflicts with a packaged binary dependency.

    Select dependencies

    Select all that are appropriate, then click Finish.

    You can always go back and modify which SPM packages are included in your project by opening the Swift Packages tab for your project: Click on the Project file in the Xcode navigator, then click on your project's icon, then select the Swift Packages tab.

CocoaPods

  1. The AWS Mobile SDK for iOS is available through CocoaPods. If you have not installed CocoaPods, install CocoaPods by running the command:

     $ gem install cocoapods
     $ pod setup
    

    Depending on your system settings, you may have to use sudo for installing cocoapods as follows:

     $ sudo gem install cocoapods
     $ pod setup
    
  2. In your project directory (the directory where your *.xcodeproj file is), run the following to create a Podfile in your project.

     $ pod init
    
  3. Edit the podfile to include the pods you want to integrate into your project. For example, if you need auth, you can use AWSMobileClient, and if you need analytics, you add AWSPinpoint. As a result, your podfile might look something like this:

target 'YourTarget' do
    pod 'AWSMobileClient'
    pod 'AWSPinpoint'
end

For a complete list of our pods, check out the .podspec files in the root directory of this project.

  1. Then run the following command:

     $ pod install --repo-update
    
  2. To open your project, open the newly generated *.xcworkspace file in your project's directory with XCode. You can do this by issuing the following command in your project folder:

     $ xed .
    

    Note: Do NOT use *.xcodeproj. If you open up a project file instead of a workspace, you may receive the following error:

     ld: library not found for -lPods-AWSCore
     clang: error: linker command failed with exit code 1 (use -v to see invocation)
    

Carthage

XCFrameworks (recommended)

Carthage supports XCFrameworks in Xcode 12 or above. Follow the steps below to consume the AWS SDK for iOS using XCFrameworks:

  1. Install Carthage 0.37.0 or greater.

  2. Add the following to your Cartfile:

     github "aws-amplify/aws-sdk-ios"
    
  3. Then run the following command:

     $ carthage update --use-xcframeworks --no-use-binaries
    

As of Carthage 0.37.0, prebuilt binaries using XCFrameworks are not supported, as mentioned in the Carthage release notes - https://github.com/Carthage/Carthage/releases/tag/0.37.0

  1. On your application targets’ General settings tab, in the Embedded Binaries section, drag and drop each xcframework you want to use from the Carthage/Build folder on disk.

Frameworks with "fat libraries" (not recommended)

To build platform-specific framework bundles with multiple architectures in the binary, (Xcode 11 and below)

  1. Install the latest version of Carthage.

  2. Add the following to your Cartfile:

     github "aws-amplify/aws-sdk-ios"
    
  3. Then run the following command:

     $ carthage update
    
  4. With your project open in Xcode, select your Target. Under General tab, find Frameworks, Libraries, and Embedded Content and then click the + button.

  5. Click the Add Other... button, then "Add Files..." in the popup menu, then navigate to the AWS<#ServiceName#>.framework files under Carthage > Build > iOS and select them. Do not check the Destination: Copy items if needed checkbox if prompted. Add the frameworks that you need for you specific use case. For example, if you are using AWSMobileClient and AWSPinpoint, you will want to add the following frameworks:

    • AWSAuthCore.framework
    • AWSCognitoIdentityProvider.framework
    • AWSCognitoIdentityProviderASF.framework
    • AWSCore.framework
    • AWSMobileClient.framework
    • AWSPinpoint.framework
  6. Under the Build Phases tab in your Target, click the + button on the top left and then select New Run Script Phase. Then setup the build phase as follows. Make sure this phase is below the Embed Frameworks phase.

     Shell /bin/sh
     
     bash "${BUILT_PRODUCTS_DIR}/${FRAMEWORKS_FOLDER_PATH}/AWSCore.framework/strip-frameworks.sh"
     
     Show environment variables in build log: Checked
     Run script only when installing: Not checked
     
     Input Files: Empty
     Output Files: Empty
    

Note: Currently, the AWS SDK for iOS builds the Carthage binaries using the latest released version of Xcode. To consume the pre-built binaries your Xcode version needs to be the same, else you have to build the frameworks on your machine by passing --no-use-binaries flag to carthage update command.

Frameworks

XCFramework setup

Starting AWS SDK iOS version 2.22.1, SDK binaries are released as XCFrameworks. Follow the steps below to install XCFramework.

  1. Download the latest SDK. Older SDK versions can be downloaded from https://releases.amplify.aws/aws-sdk-ios/aws-ios-sdk-#.#.#.zip, where #.#.# represents the version number. So for version 2.23.3, the download link is https://releases.amplify.aws/aws-sdk-ios/aws-ios-sdk-2.23.3.zip.

Note1: If you are using version < 2.22.1 please refer to the "Legacy framework setup" section below. Note2: To download version < 2.23.3 use this link https://sdk-for-ios.amazonwebservices.com/aws-ios-sdk-#.#.#.zip

  1. Uncompress the ZIP file
  2. On your application targets’ General settings tab, in the Embedded Binaries section, drag and drop each xcframework you want to use from the downloaded folder.

Legacy framework setup

  1. Download the required SDK using https://sdk-for-ios.amazonwebservices.com/aws-ios-sdk-#.#.#.zip, where #.#.# represents the version number. So for version 2.10.2, the download link is https://sdk-for-ios.amazonwebservices.com/aws-ios-sdk-2.10.2.zip.

Note: If you are using version > 2.22.0 please refer to the "XCFramework setup" section above.

  1. With your project open in Xcode, select your Target. Under General tab, find Embedded Binaries and then click the + button.

  2. Click the Add Other... button, navigate to the AWS<#ServiceName#>.framework files and select them. Check the Destination: Copy items if needed checkbox when prompted. Add the frameworks that you need for you specific use case. For example, if you are using AWSMobileClient and AWSPinpoint, you will want to add the following frameworks:

    • AWSAuthCore.framework
    • AWSCognitoIdentityProvider.framework
    • AWSCognitoIdentityProviderASF.framework
    • AWSCore.framework
    • AWSMobileClient.framework
    • AWSPinpoint.framework
  3. Under the Build Phases tab in your Target, click the + button on the top left and then select New Run Script Phase. Then setup the build phase as follows. Make sure this phase is below the Embed Frameworks phase.

     Shell /bin/sh
     
     bash "${BUILT_PRODUCTS_DIR}/${FRAMEWORKS_FOLDER_PATH}/AWSCore.framework/strip-frameworks.sh"
     
     Show environment variables in build log: Checked
     Run script only when installing: Not checked
     
     Input Files: Empty
     Output Files: Empty
    

Update the SDK to a Newer Version

When we release a new version of the SDK, you can pick up the changes as described below.

CocoaPods

  1. Run the following command in your project directory. CocoaPods automatically picks up the new changes.

     $ pod update
    

    Note: If your pod is having an issue, you can delete Podfile.lock and Pods/ then run pod install to cleanly install the SDK.

    image

Carthage

  1. Run the following command in your project directory. Carthage automatically picks up the new changes.

     $ carthage update
    

Frameworks

  1. In Xcode's Project Navigator, type "AWS" to find the AWS Frameworks or XCFrameworks that you manually added to your project. Select all of the AWS Frameworks and hit Delete on your keyboard. Then select Move to Trash.

  2. Follow the installation process above to include the new version of the SDK.

Getting Started with Swift

  1. Import the AWSCore header in the application delegate.

    import AWSCore
  2. Create a default service configuration by adding the following code snippet in the application:didFinishLaunchingWithOptions: application delegate method.

    let credentialsProvider = AWSCognitoCredentialsProvider(
        regionType: CognitoRegionType,
        identityPoolId: CognitoIdentityPoolId)
    let configuration = AWSServiceConfiguration(
        region: DefaultServiceRegionType,
        credentialsProvider: credentialsProvider)
    AWSServiceManager.default().defaultServiceConfiguration = configuration
  3. In Swift file you want to use the SDK, import the appropriate headers for the services you are using. The header file import convention is import AWSServiceName, as in the following examples:

    import AWSS3
    import AWSDynamoDB
    import AWSSQS
    import AWSSNS
  4. Make a call to the AWS services.

    let dynamoDB = AWSDynamoDB.default()
    let listTableInput = AWSDynamoDBListTablesInput()
    dynamoDB.listTables(listTableInput!).continueWith { (task:AWSTask<AWSDynamoDBListTablesOutput>) -> Any? in
        if let error = task.error as? NSError {
        print("Error occurred: \(error)")
            return nil
        }
    
        let listTablesOutput = task.result
    
        for tableName in listTablesOutput!.tableNames! {
            print("\(tableName)")
        }
    
        return nil
    }

Note: Most of the service client classes have a singleton method to get a default client. The naming convention is + defaultSERVICENAME (e.g. + defaultDynamoDB in the above code snippet). This singleton method creates a service client with defaultServiceConfiguration, which you set up in step 5, and maintains a strong reference to the client.

Getting Started with Objective-C

  1. Import the AWSCore header in the application delegate.

    @import AWSCore;
  2. Create a default service configuration by adding the following code snippet in the application:didFinishLaunchingWithOptions: application delegate method.

    AWSCognitoCredentialsProvider *credentialsProvider = [[AWSCognitoCredentialsProvider alloc] initWithRegionType:CognitoRegionType
                                                                                                    identityPoolId:CognitoIdentityPoolId];
    AWSServiceConfiguration *configuration = [[AWSServiceConfiguration alloc] initWithRegion:DefaultServiceRegionType
                                                                         credentialsProvider:credentialsProvider];
    AWSServiceManager.defaultServiceManager.defaultServiceConfiguration = configuration;
  3. Import the appropriate headers for the services you are using. The header file import convention is @import AWSServiceName;, as in the following examples:

    @import AWSS3;
    @import AWSDynamoDB;
    @import AWSSQS;
    @import AWSSNS;
  4. Make a call to the AWS services.

    AWSSNS *sns = [AWSSNS defaultSNS];
    AWSSNSListTopicsInput *listTopicsInput = [AWSSNSListTopicsInput new];
    [[sns listTopics:listTopicsInput] continueWithBlock:^id(AWSTask *task) {
        // Do something with the response
        return nil;
    }];

Note: Most of the service client classes have a singleton method to get a default client. The naming convention is + defaultSERVICENAME (e.g. + defaultS3SNS in the above code snippet). This singleton method creates a service client with defaultServiceConfiguration, which you set up in step 5, and maintains a strong reference to the client.

Working with AWSTask

The SDK returns AWSTask objects when operating on asynchronous operations to avoid blocking the UI thread.

The AWSTask class is a renamed version of BFTask from the Bolts framework. For complete documentation on Bolts, see the Bolts-iOS repo

Logging

As of version 2.5.4 of this SDK, logging utilizes CocoaLumberjack, a flexible, fast, open source logging framework. It supports many capabilities including the ability to set logging level per output target, for instance, concise messages logged to the console and verbose messages to a log file.

CocoaLumberjack logging levels are additive such that when the level is set to verbose, all messages from the levels below verbose are logged. It is also possible to set custom logging to meet your needs. For more information, see CocoaLumberjack

Changing Log Levels

Swift

AWSDDLog.sharedInstance.logLevel = .verbose

The following logging level options are available:

  • .off
  • .error
  • .warning
  • .info
  • .debug
  • .verbose

Objective-C

[AWSDDLog sharedInstance].logLevel = AWSDDLogLevelVerbose;

The following logging level options are available:

  • AWSDDLogLevelOff
  • AWSDDLogLevelError
  • AWSDDLogLevelWarning
  • AWSDDLogLevelInfo
  • AWSDDLogLevelDebug
  • AWSDDLogLevelVerbose

We recommend setting the log level to Off before publishing to the Apple App Store.

Targeting Log Output

CocoaLumberjack can direct logs to file or used as a framework that integrates with the Xcode console.

To initialize logging to files, use the following code:

Swift

let fileLogger: AWSDDFileLogger = AWSDDFileLogger() // File Logger
fileLogger.rollingFrequency = TimeInterval(60*60*24)  // 24 hours
fileLogger.logFileManager.maximumNumberOfLogFiles = 7
AWSDDLog.add(fileLogger)

Objective-C

AWSDDFileLogger *fileLogger = [[AWSDDFileLogger alloc] init]; // File Logger
fileLogger.rollingFrequency = 60 * 60 * 24; // 24 hour rolling
fileLogger.logFileManager.maximumNumberOfLogFiles = 7;
[AWSDDLog addLogger:fileLogger];

To initialize logging to your Xcode console, use the following code:

Swift

AWSDDLog.add(AWSDDTTYLogger.sharedInstance) // TTY = Xcode console

Objective-C

[AWSDDLog addLogger:[AWSDDTTYLogger sharedInstance]]; // TTY = Xcode console

Open Source Contributions

We welcome any and all contributions from the community! Make sure you read through our contribution guide here before submitting any PR's. Thanks! <3

Talk to Us

Visit our GitHub Issues to leave feedback and to connect with other users of the SDK.

Author

Amazon Web Services

License

See the LICENSE file for more info.

About

AWS SDK for iOS. For more information, see our web site:

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