Mitigate fraud with App Attest and DeviceCheck

let appAttestService = DCAppAttestService.shared

if appAttestService.isSupported {
    appAttestService.generateKey { keyId, error in
        guard error == nil else { /* Handle the error. */ }
        // Cache keyId for subsequent operations.
    }
} else {
   // Handle fallback as untrusted device
}

appAttestService.attestKey(keyId, clientDataHash: clientDataHash) { attestationObject, error in
    guard error == nil else { /* Handle error. */ }

    // Send the attestation object to your server for verification.
}

appAttestService.generateAssertion(keyId, clientDataHash: clientDataHash) { assertionObject, error in
    guard error == nil else { /* Handle error. */ }
    
    // Send assertion object with your data to your server for verification
}