Set up iOS SDK | LaunchDarkly

Install the package

1 //...
2     dependencies: [
3         .package(url: "https://github.com/launchdarkly/ios-client-sdk.git", .upToNextMajor("9.15.0")),
4    ],
5     targets: [
6         .target(
7             name: "YOUR_TARGET",
8             dependencies: ["LaunchDarkly"]
9         )
10     ],
11 //...

Initialize the SDK

iOS SDK initialization

1 import LaunchDarkly
2 
3 let config = LDConfig(mobileKey: "YOUR_MOBILE_KEY", autoEnvAttributes: .enabled)
4 
5 // A "context" is a data object representing users, devices, organizations, and other entities.
6 let contextBuilder = LDContextBuilder(key: "EXAMPLE_CONTEXT_KEY")
7 guard case .success(let context) = contextBuilder.build()
8 else { return }
9 
10 LDClient.start(config: config, context: context, startWaitSeconds: 5) { timedOut in
11     if timedOut {
12         print("SDK didn't initialize in 5 seconds.  SDK is still running and trying to get latest flags.")
13     } else {
14         print("SDK successfully initialized with the latest flags")
15     }
16 }
17 
18 print("SDK started.")

Finding your SDK credentials

You can find your server-side SDK key, client-side ID, and mobile key in the “Resources” section of the help menu. Click the help icon at the bottom left corner of the LaunchDarkly UI, then choose SDK keys:

To learn more, read Initialize the client in the iOS SDK reference guide.