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Step 1: Add SDK Dependency

  • Open your app’s project file .xcodeproj.
  • Add the following line into the dependencies section of your project’s Podfile:
pod 'OtplessSDK', '2.1.1'

Make sure to run the following commands in your root folder to fetch the dependency.

pod repo update
pod install

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Step 2: Configure info.plist

Add the following block to your info.plist file:

info.plist
<key>CFBundleURLTypes</key>
<array>
    <dict>
        <key>CFBundleURLSchemes</key>
        <array>
            <string>otpless.{{YOUR_APP_ID}}</string>
        </array>
        <key>CFBundleTypeRole</key>
        <string>Editor</string>
        <key>CFBundleURLName</key>
        <string>otpless</string>
    </dict>
</array>
<key>LSApplicationQueriesSchemes</key>
<array>
    <string>whatsapp</string>
    <string>otpless</string>
    <string>gootpless</string>
    <string>com.otpless.ios.app.otpless</string>
    <string>googlegmail</string>
</array>

Replace YOUR_APP_ID with your actual App ID provided in your OTPLESS dashboard.

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Step 3: Handle Redirection

Add the following code to your App Delegate to handle redirection:

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Step 4: Configure your Signup/Sign in page

Import the OTPLESS SDK in your file:

import OtplessSDK

Add the following code in your viewDidLoad() function:

Otpless.sharedInstance.delegate = self
Otpless.sharedInstance.showOtplessLoginPageWithParams(appId: {YOUR_APP_ID}, vc: self, params: nil)

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Step 5: Handle Callback on your Signup/Sign in page

Implement the OtplessDelegate protocol and handle the callback from the OTPLESS SDK:

extension YourViewController: OtplessDelegate {
    func onResponse(response: [String : Any]?) {
        if let response = response {
            print(response)
            if let token = response["token"] as? String {
                // Send this token to your backend service to validate otplessUser details received in the callback with OTPless backend service
            }
        }
    }
}

Configure Auth Method

Select from a wide array of auth methods, including SMS, WhatsApp, Email, Google, and many more

Configure UI

Customize logos, headings, color schemes, and more to match your brand identity and improve UX.

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🏁 Checkpoint

To ensure a smooth integration process:

  1. Deploy your app/website with the included OTPLESS SDK.
  2. Conduct tests to verify the sign-in flow functions correctly.
  3. Ensure that after a successful sign-in, the user is redirected back to your app/website and their information is correctly logged in the console.

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User Information Response Structure

The structure of the user information returned upon successful sign-in is as follows:

{
  "status": "SUCCESS",
  "token": "unique_token_here",
  "userId": "unique_user_id_here",
  "timestamp": "ISO_timestamp_here",
  "identities": [
    {
       "identityType": "EMAIL",
      "identityValue": "user@example.com",
      "channel": "OAUTH",
      "methods": [
        "GOOGLE"
      ],
      "name": "User Name",
      "verified": true,
      "verifiedAt": "ISO_timestamp_here",
      "isCompanyEmail": "true"
    }
  ],
  "idToken": "jwt_token",
  "network": {
    "ip": "127.0.0.1",
    "timezone": "Asia/Kolkata",
    "ipLocation": {}
  },
  "deviceInfo": {},
  "sessionInfo": {},
  "firebaseInfo": {},
}

You can check out a complete sample response here.

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Next Steps

Validate Token

Learn how to securely `validate token` returned by OTPLESS ios SDK to ensure the authenticity of sign-in events from your backend server.

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