react-native-nsd v0.0.4

react-native-nsd

This module is a wrapper to use Android's Network Service Discovery from a react-native App.

Getting started

$ npm install react-native-nsd --save

Mostly automatic installation

$ react-native link react-native-nsd

Manual installation

Android

1. Open up android/app/src/main/java/[...]/MainActivity.java

• Add import net.altermundi.rn_nsd.NsdPackage; to the imports at the top of the file
• Add new NsdPackage() to the list returned by the getPackages() method

2. Append the following lines to android/settings.gradle:

   include ':react-native-nsd'
   project(':react-native-nsd').projectDir = new File(rootProject.projectDir, 	'../node_modules/react-native-sd/android')

3. Insert the following lines inside the dependencies block in android/app/build.gradle:

     compile project(':react-native-nsd')

Usage

To use the module in your App.

import { NSD } from "react-native-nsd";
import { DeviceEventEmitter } from "react-native";

// Listen and react to discovered/resolved services
DeviceEventEmitter.addListener("serviceResolved", function(e) {
  console.log("JS: service resolved");
  console.log(e.name, e.host, e.port);
  // if you are using react-native-handshake you can receive handshake message from the discovered peer
  // You would import { Handshake } from react-native-handshake first and then you can do
  Handshake.receiveKey(e.host, e.port);
  // read react-native-handshake documentation for info on how to use it
});

// NSD methods (self explanatory)
NSD.setServiceName("myservice");
NSD.discover();
NSD.stopDiscovery();
NSD.register(port_number);
NSD.unregister();