iOS – Sign in with Device

Cotter's Passwordless SDK authenticates your user using the FIDO protocol. It allows a seamless, fast, and secure way for your user to login to your iOS App. Authenticate your users in 4 simple steps:

Sign in with Device
In this guide we'll allow users to Sign In with Device using Cotter's SDK. 
Step 1: Import Cotter as a dependency
Head to https://dev.cotter.app/rules and allow Trusted Devices in the dashboard. 
We use Cocoapods as our SDK host. Add pod 'Cotter' to your podfile then run pod install.
Step 2: Initialize Cotter
In your app's AppDelegate.swift, initialize Cotter with your API keys.
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import Cotter // IMPORTANT: IMPORT COTTER AS DEPENDENCY
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...
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func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
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  Cotter.configureWithLaunchOptions(
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    launchOptions: launchOptions,
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    apiSecretKey: <your-secret-key>,
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    apiKeyID: <your-api-id>
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  )
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}
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Step 3: Register your user
To register, simply call the following function anywhere in your app. Make sure you do import Cotter at the start of the swift file.
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Passwordless.shared.register( 
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  identifier: <user-email>
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)
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Step 4: Logging in
When a user logs in, call the following function in your view controller
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Passwordless.shared.parentVC = self
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Passwordless.shared.login(
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  identifier: <user-email>, 
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  cb: { (token: CotterOAuthToken?, err:Error?) in
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    if err != nil {
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        // case 1: handle error as necessary
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    }
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    if token == nil {
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        // case 2: user is unauthorized
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    }
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    // case 3: user is authorized
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})
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Then you can handle 3 cases mentioned in the comments in any way you like.
👉 Next steps
That's it! You have successfully build a seamless, fast, and secure login mechanism with Cotter.
Integrate Cotter's push notification services
Push Notification
Verify User's Email or Phone Number
Sign In with Email/Phone Number
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Flutter – Sign in with Device

Last modified 1yr ago

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Contents

Step 1: Import Cotter as a dependency

Step 2: Initialize Cotter

Step 3: Register your user

Step 4: Logging in

👉 Next steps