Facebook SDK in Swift (Beta)

Swift-tailored experience to integrate your app with Facebook. Including:

• Facebook Login - Authenticate people with their Facebook credentials.
• Share and Send Dialogs - Enable sharing content from your app to Facebook.
• App Events - Understand your audience and the performance of your app.
• Graph API - Read and write directly to Facebook social graph.

Important

NOTE: This SDK is a wrapper around the ObjC SDK. The project uses Carthage internally for managing the dependencies on the "FBSDK"-prefixed libraries. It is intended to offer an additional layer of type-safety around the original as well as offer support for modern Swift and iOS paradigms. Please see our roadmap for information about the strategy for modernizing this project.

Installation

CocoaPods

Make sure you are running the latest version of CocoaPods by running:

gem install cocoapods

# (or if the above fails)
sudo gem install cocoapods

Note: We support any version of CocoaPods 1.0.1 or later.

Update your local specs repo by running:

pod repo update

Note: This step is optional, if you updated the specs repo recently.

Add the following lines to your Podfile:

pod 'FacebookCore'
pod 'FacebookLogin'
pod 'FacebookShare'

Run pod install and you're all set!

You may also exclude any of these dependencies, if you do not need the features of those parts of the SDK.

Carthage

Make sure you are running the latest version of Carthage by running:

brew update
brew upgrade carthage

Note: We recommend using Carthage version 0.31.1 or later.

Add the following line to your Cartfile:

github "facebook/facebook-swift-sdk"

# If you run into issues, try targeting the master branch
github "facebook/facebook-swift-sdk" "master"

Run carthage update.

Note: This will fetch dependencies into a Carthage/Checkouts folder, then build each one.

On your application targets' General settings tab, in the Linked Frameworks and Libraries section.

At a minimum, you'll need to drag & drop the following frameworks from Carthage/Build folder on disk:

• FacebookCore.framework
• FBSDKCoreKit.framework

To use Login with Facebook:

• FacebookLogin.framework
• FBSDKLoginKit.framework

To use Share and Send Dialogs

• FacebookShare.framework
• FBSDKShareKit.framework

On your application targets' Build Phases tab:

• Click + icon and choose New Run Script Phase.
• Create a script with a shell of your choice (e.g. /bin/sh).
• Add the following to the script area below the shell:

/usr/local/bin/carthage copy-frameworks

• Add the paths to the frameworks you want to use under Input Files, for example:

$(SRCROOT)/Carthage/Build/iOS/FacebookCore.framework
$(SRCROOT)/Carthage/Build/iOS/FBSDKCoreKit.framework

Using Facebook SDK as a sub-project

While not recommended, it is entirely possible for you to build the Facebook SDK for Swift outside of any dependency management system.

Note: You will have to manage updating this solution (as well as the dependencies on the Facebook SDK for iOS) on your own.

• Clone the repository.
• Run the following command in the root directory of the repository: git submodule update --init --recursive
• Add FacebookSwift.xcodeproj as a sub-project to your applications' project.
• Add the FacebookCore.framework, FacebookLogin.framework, and FacebookShare.framework build products from the sub-project to your applications Link Frameworks and Libraries and Embedded Binaries sections.

Don't forget to also embed/link FBSDKCoreKit.framework, FBSDKLoginKit.framework, and FBSDKShareKit.framework.

Modules

The frameworks for the Facebook SDK in Swift are organized in the same way that the Facebook SDK for iOS is.

They also currently depend upon the Facebook SDK for iOS, although this may change at some point in the future.

FacebookCore

Depends on FBSDKCoreKit.framework.

The following types are included, with enhancements for Swift:

• AccessToken
• ApplicationDelegate
• AppEvents

A myriad of improvements, including type-safe built-in AppEvents, an AppEvent struct, and more.

• GraphRequest

You can now implement your own type-safe GraphRequests, including native-typed results.

• SDKSettings

Logging behaviors are now implemented as a type-safe set, based on Swift enums.

• Permission

Are no longer stringly-typed (string-based), but separate types for read and write permissions (also includes a built-in permission list, which includes most common permissions by default).

FacebookLogin

Depends on FacebookCore.framework and FBSDKLoginKit.framework.

The following types are included, with enhancements for Swift:

• LoginManager

Now uses the type-safe permissions from FacebookCore, and has constructors with LoginBehavior and DefaultAudience, instead of requiring manual setting of properties.

• LoginButton

Can no longer change permissions after creation, helping to enforce using a single login button for a given set of permissions. Note that LoginButton is not intended to work with interface builder or storyboards at this time. We may re-address this in the future.

FacebookShare

Depends on FacebookCore.framework and FBSDKShareKit.framework.

The following types are included, with enhancements for Swift:

• LinkShareContent

Now a struct, and has a proper initializer enforcing required properties.

• OpenGraphShareContent

Now a struct, uses type-safe OpenGraphPropertyName and OpenGraphPropertyValue, as well as structs for OpenGraphObject and OpenGraphAction.

• PhotoShareContent

Now a struct, and better type-safety for properties on it.

• VideoShareContent

Now a struct, and better type-safety for properties on it.

• GraphSharer

Now a generic type, that can handle any type of content.

• ShareDialog

Now a generic type, that can handle any type of content.

• MessageDialog

Now a generic type, that can handle any type of content.

• GameRequest

Now a struct, contains proper type-safe enum for Recipient, Result.

• GameRequest.Dialog
• AppGroupRequest.Dialog
• AppInvite

Now a struct, use a type-safe Promotion property, instead of separate promotionCode and promotionText.

• AppInvite.Dialog

Give Feedback

Facebook SDK in Swift is still in beta, and we would love to hear your thoughts and feedback on it.

• Have an idea or feature request? Open an issue. Tell us more about the feature or an idea and why you think it's relevant.
• Have a bug to report? Open an issue. If possible, include the version of the SDK you are using, and any technical details.
• Need help with your code? Join Facebook Developers Group on Facebook or ask questions on Stack Overflow.

Contribute

All of Facebook SDK for Swift development happens on GitHub. Contributions make for good karma and we welcome new contributors with tremendous joy. We request that you read our contributing guidelines before submitting a Pull Request.

Unit Test Terminology

For unit testing we're choosing to follow the test terms put forth by Martin Fowler. This is to avoid confusion as a lot of these terms are commonly misused.

• Dummy objects are passed around but never actually used. Usually they are just used to fill parameter lists.
• Fake objects actually have working implementations, but usually take some shortcut which makes them not suitable for production (an in memory database is a good example).
• Stubs provide canned answers to calls made during the test, usually not responding at all to anything outside what's programmed in for the test.
• Spies are stubs that also record some information based on how they were called. One form of this might be an email service that records how many messages it was sent.
• Mocks are what we are talking about here: objects pre-programmed with expectations which form a specification of the calls they are expected to receive. Source: https://martinfowler.com/articles/mocksArentStubs.html

License

Facebook SDK in Swift is MIT licensed, as found in the LICENSE file.