> ## Documentation Index
> Fetch the complete documentation index at: https://otpless.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.
# Secure
> Prevent fraud, detect bots, and deliver seamless experiences with reliable browser fingerprinting.
export const SampleGithubContainer = ({platform, href = '/api-reference/endpoint/verifytoken/verify-token-with-secure-data', text = 'authenticity of sign-in'}) => {
let githubLink = "https://github.com";
switch (platform.toLowerCase()) {
case "android":
githubLink = "https://github.com/devbathaniotpless/otpless-androidnative-demo";
break;
case "ios":
githubLink = "https://github.com/devbathaniotpless/otpless-iOS-demo";
break;
case "react native":
githubLink = "https://github.com/devbathaniotpless/otpless-react-native-demo";
break;
case "flutter":
githubLink = "https://github.com/devbathaniotpless/otpless-flutter-demo";
break;
case "ionic":
githubLink = "https://github.com/devbathaniotpless/otpless-ionic-demo";
break;
case "javascript":
githubLink = "https://github.com/devbathaniotpless/otpless-javascript-demo";
break;
case "vue":
githubLink = "https://github.com/devbathaniotpless/otpless-vue-demo";
break;
case "angular":
githubLink = "https://github.com/devbathaniotpless/otpless-angular-demo";
break;
case "wordpress":
githubLink = "https://github.com/devbathaniotpless/otpless-wordpress-demo";
break;
case "shopify":
githubLink = "https://github.com/devbathaniotpless/otpless-shopify-demo";
break;
case "react js":
githubLink = "https://github.com/devbathaniotpless/otpless-reactjs-demo";
break;
default:
githubLink = "https://github.com";
}
return
Learn how to securely `validate ID token` returned by OTPLESS {platform} SDK to ensure the {text} events from your backend server.
Learn how to securely `validate token` returned by OTPLESS {platform} SDK to ensure the {text} events from your backend server.
;
};
## Step 1: Add SDK Dependency
Add the OTPLESS SECURE SDK to your project by including the following script in the `` section of your HTML document:
```javascript index.html theme={null}
```
Replace `YOUR_APP_ID` with [your actual App
ID](https://otpless.com/dashboard/customer/dev-settings/apiKeys) provided in
your OTPLESS dashboard.
## Step 2: Initialize SDK and Handle Callback
Initialize the SDK and set up a callback function to handle fingerprinting:
```javascript index.html theme={null}
```
## Step 3: Initiate SDK
Use the `initiate` method of the SDK to start the fingerprinting process:
```javascript Secure theme={null}
const secureAuth = () => {
OTPlessSecure.initiate();
};
```
## **🏁 Checkpoint**
To ensure a smooth integration process:
1. Deploy your app/website with the included OTPLESS SECURE SDK.
2. Conduct tests to verify the fingerprinting flow functions correctly.
### User Information Response Structure
The structure of the response returned upon successful fingerprinting as follows:
```json theme={null}
{
"token": "unique_token_here",
}
```
## Next Steps