Implementing device lock–based user authentication

package-lock.json

@@ -13,6 +13,7 @@
         "@react-native/new-app-screen": "0.83.1",
         "react": "19.2.0",
         "react-native": "0.83.1",
+        "react-native-biometrics": "^3.0.1",
         "react-native-safe-area-context": "^5.5.2"
       },
       "devDependencies": {
@@ -10101,6 +10102,15 @@
         }
       }
     },
+    "node_modules/react-native-biometrics": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/react-native-biometrics/-/react-native-biometrics-3.0.1.tgz",
+      "integrity": "sha512-Ru80gXRa9KG04sl5AB9HyjLjVbduhqZVjA+AiOSGqr+fNqCDmCu9y5WEksnjbnniNLmq1yGcw+qcLXmR1ddLDQ==",
+      "license": "MIT",
+      "peerDependencies": {
+        "react-native": ">=0.60.0"
+      }
+    },
     "node_modules/react-native-safe-area-context": {
       "version": "5.6.2",
       "resolved": "https://registry.npmjs.org/react-native-safe-area-context/-/react-native-safe-area-context-5.6.2.tgz",

package.json

@@ -15,6 +15,7 @@
     "@react-native/new-app-screen": "0.83.1",
     "react": "19.2.0",
     "react-native": "0.83.1",
+    "react-native-biometrics": "^3.0.1",
     "react-native-safe-area-context": "^5.5.2"
   },
   "devDependencies": {

src/screen/GetPinAuthenticate.tsx

@@ -0,0 +1,18 @@
+
+import ReactNativeBiometrics from 'react-native-biometrics';
+
+const rnBiometrics = new ReactNativeBiometrics({
+    allowDeviceCredentials: true, // IMPORTANT
+});
+
+const authenticateWithDevicePin = async () => {
+    const { success } = await rnBiometrics.simplePrompt({
+        promptMessage: 'Authenticate using device lock',
+    });
+
+    if (success) {
+        console.log('User authenticated using device PIN / Pattern / FaceID');
+    } else {
+        console.log('Authentication cancelled');
+    }
+};