react-native-fingerprint

Fingerprint android auth for react-native (android only).

API

.authenticate():Promise<null>

Starts authentication. Returns a Promise.

.hasPermission(): Promise<boolean>

Will check if android.permission.USE_FINGERPRINT is granted to this app.

hasEnrolledFingerprints(): Promise<boolean>

Determine if there is at least one fingerprint enrolled.

isHardwareDetected(): Promise<boolean>

Determine if fingerprint hardware is present and functional.

Installation

npm i react-native-fingerprint --save

Don't forget to add the permission to your manifest:

android/app/src/main/AndroidManifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example">
+    <uses-permission android:name="android.permission.USE_FINGERPRINT" />

Automatic installation

Run react-native link after npm install.

Manual installation

android/app/build.gradle

dependencies {
+   compile project(path: ':react-native-fingerprint')
    compile fileTree(dir: "libs", include: ["*.jar"])
    compile "com.android.support:appcompat-v7:23.0.1"
    compile "com.facebook.react:react-native:+"  // From node_modules
}

android/settings.gradle

include ':app'
+include ':react-native-fingerprint'
+project(':react-native-fingerprint').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-fingerprint/android')

android/app/src/main/java/com.your.package/MainApplication.java

import com.facebook.react.ReactApplication;
+ import che.rn.fingerprint.FingerPrintPackage;

        @Override
        protected List<ReactPackage> getPackages() {
            return Arrays.<ReactPackage>asList(
-                   new MainReactPackage()
+                   new MainReactPackage(),
+                   new FingerPrintPackage()
            );
        }

TODO

Improve docs, add example