react-native-randombytes
randomBytes for react-native
Last updated a year ago by tenaciousmv .
ISC · Repository · Bugs · Original npm · Tarball · package.json
$ cnpm install react-native-randombytes 
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react-native-randombytes

Usage

import { randomBytes } from 'react-native-randombytes'

// synchronous API
// uses SJCL
const rand = randomBytes(4)

// asynchronous API
// uses iOS-side SecRandomCopyBytes
randomBytes(4, (err, bytes) => {
  // bytes is a Buffer object
  console.log(bytes.toString('hex'))
})

Installation

  1. Follow the steps in the next section

  2. You have two options depending on your needs:

    1. if you're trying to get Node.js or browser crypto modules working in React Native, follow the installation workflow in react-native-crypto.
    2. if you only need asynchronous random bytes generation, and don't care about getting back Buffer objects, you can do the following:
    import { NativeModules } from 'react-native'
    const { RNRandomBytes } = NativeModules
    RNRandomBytes.randomBytes(32, (err, bytes) => {
      // bytes is a base64string
    })
    

Automatic - Android / iOS (recommended)

react-native link

Manual

If Automatic installation failed you, dry your tears and read on.

iOS

  • Drag RNRandomBytes.xcodeproj from node_modules/react-native-randombytes into your XCode project.

  • Click on the project in XCode, go to Build Phases, then Link Binary With Libraries and add libRNRandomBytes.a

Confused? See an example with screenshots here

Android

  • Update Gradle Settings
// file: android/settings.gradle
...

include ':randombytes', ':app'
project(':randombytes').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-randombytes/android')
  • Update Gradle Build
// file: android/app/build.gradle
...

dependencies {
    ...
    compile project(':randombytes')
}
  • Register React Package
...
import com.bitgo.randombytes.RandomBytesPackage // import

public class MainActivity extends Activity implements DefaultHardwareBackBtnHandler {

    private ReactInstanceManager mReactInstanceManager;
    private ReactRootView mReactRootView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mReactRootView = new ReactRootView(this);
        mReactInstanceManager = ReactInstanceManager.builder()
                .setApplication(getApplication())
                .setBundleAssetName("index.android.bundle")
                .setJSMainModuleName("index.android")
                .addPackage(new MainReactPackage())
                .addPackage(new RandomBytesPackage()) // register package here
                .setUseDeveloperSupport(BuildConfig.DEBUG)
                .setInitialLifecycleState(LifecycleState.RESUMED)
                .build();
        mReactRootView.startReactApplication(mReactInstanceManager, "AwesomeProject", null);
        setContentView(mReactRootView);
    }
...

Current Tags

  • 3.5.3                                ...           latest (a year ago)

16 Versions

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