Meet Face ID and Touch ID for the web

// Feature detection

const isAvailable = await PublicKeyCredential.isUserVerifyingPlatformAuthenticatorAvailable();

if (isAvailable) {
    // Continue to enrollment or sign in
    // ...
}

// Enrollment

const options = {
    publicKey: {
        rp: { name: "example.com" },
        user: {
            name: "[email protected]",
            id: userIdBuffer,
            displayName: "John Appleseed"
        },
        pubKeyCredParams: [ { type: "public-key", alg: -7 } ],
        challenge: challengeBuffer,
        authenticatorSelection: { authenticatorAttachment: "platform" },
        attestation: "direct"
    }
};

const publicKeyCredential = await navigator.credentials.create(options);

// Sign in

const options = {
    publicKey: {
        challenge: challengeBuffer,
        allowCredentials: [{
             type: "public-key",
             id: credentialIdBuffer,
             transports: ["internal"]
        }]
    }
};

const publicKeyCredential = await navigator.credentials.get(options);