Servidor Node.js Heroku Push Notificaciones Firebase

FirebasePushNotificationsWithServerNodeJS/server/Procfile

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+web: node index.js

FirebasePushNotificationsWithServerNodeJS/server/README.md

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+# node-js-getting-started
+
+A barebones Node.js app using [Express 4](http://expressjs.com/).
+
+This application supports the [Getting Started with Node on Heroku](https://devcenter.heroku.com/articles/getting-started-with-nodejs) article - check it out.
+
+## Running Locally
+
+Make sure you have [Node.js](http://nodejs.org/) and the [Heroku Toolbelt](https://toolbelt.heroku.com/) installed.
+
+```sh
+$ git clone git@github.com:heroku/node-js-getting-started.git # or clone your own fork
+$ cd node-js-getting-started
+$ npm install
+$ npm start
+```
+
+Your app should now be running on [localhost:5000](http://localhost:5000/).
+
+## Deploying to Heroku
+
+```
+$ heroku create
+$ git push heroku master
+$ heroku open
+```
+or
+
+[![Deploy to Heroku](https://www.herokucdn.com/deploy/button.png)](https://heroku.com/deploy)
+
+## Documentation
+
+For more information about using Node.js on Heroku, see these Dev Center articles:
+
+- [Getting Started with Node.js on Heroku](https://devcenter.heroku.com/articles/getting-started-with-nodejs)
+- [Heroku Node.js Support](https://devcenter.heroku.com/articles/nodejs-support)
+- [Node.js on Heroku](https://devcenter.heroku.com/categories/nodejs)
+- [Best Practices for Node.js Development](https://devcenter.heroku.com/articles/node-best-practices)
+- [Using WebSockets on Heroku with Node.js](https://devcenter.heroku.com/articles/node-websockets)

FirebasePushNotificationsWithServerNodeJS/server/app.json

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+{
+  "name": "Node.js Getting Started",
+  "description": "A barebones Node.js app using Express 4",
+  "repository": "https://github.com/heroku/node-js-getting-started",
+  "logo": "http://node-js-sample.herokuapp.com/node.svg",
+  "keywords": ["node", "express", "static"],
+  "image": "heroku/nodejs"
+}

FirebasePushNotificationsWithServerNodeJS/server/index.js

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+var express = require('express');
+var app = express();
+app.set('port', (process.env.PORT || 5000));
+
+var bodyParser = require("body-parser");
+app.use(bodyParser.json()); //soporte para codificar json
+app.use(bodyParser.urlencoded({ extended: true })); //Soporte para decodificar las url
+
+var firebase = require("firebase");
+firebase.initializeApp({
+  serviceAccount: "TU_ARCHIVO_JSON_AQUI",
+  databaseURL: "LA_URL_BASEDATOS_FIREBASE"
+});
+
+var FCM = require('fcm-push');
+
+
+app.use(express.static(__dirname + '/public'));
+
+// views is directory for all template files
+app.set('views', __dirname + '/views');
+app.set('view engine', 'ejs');
+
+app.get('/android', function(request, response) {
+  response.render('pages/index');
+});
+
+//POST
+//https://afternoon-lowlands-49612.herokuapp.com/token-device
+//token
+//animal
+var tokenDevicesURI = "token-device";
+app.post('/' + tokenDevicesURI, function(request, response) {
+	var token 	= request.body.token;
+	var animal 	= request.body.animal;
+	var db = firebase.database();
+	var tokenDevices = db.ref(tokenDevicesURI).push();
+	tokenDevices.set({
+		token: token,
+		animal: animal
+	});	
+
+	var path = tokenDevices.toString(); //https://project-4284821003924177471.firebaseio.com/token-device/-KJlTaOQPwP-ssImryV1
+	var pathSplit = path.split(tokenDevicesURI + "/")
+	var idAutoGenerado = pathSplit[1];
+
+	var respuesta = generarRespuestaAToken(db, idAutoGenerado);
+	response.setHeader("Content-Type", "application/json");
+	response.send(JSON.stringify(respuesta));
+});
+
+function generarRespuestaAToken(db, idAutoGenerado) {
+	var respuesta = {};
+	var usuario = "";
+	var ref = db.ref("token-device");
+	ref.on("child_added", function(snapshot, prevChildKey) {
+		usuario = snapshot.val();
+		respuesta = {
+			id: idAutoGenerado,
+			token: usuario.token,
+			animal: usuario.animal
+		};
+	});
+	return respuesta;
+}
+
+//GET
+//https://afternoon-lowlands-49612.herokuapp.com/toque-animal
+//id
+//animal
+app.get("/toque-animal/:id/:animal", function(request, response){
+	var id 		= request.params.id;
+	var animal 	= request.params.animal;
+
+	var db = firebase.database();
+	var ref = db.ref("token-device/" + id);
+	var usuario = "";
+	var respuesta = {};
+
+	ref.on("value", function(snapshot) {
+		console.log(snapshot.val());
+		usuario = snapshot.val();
+		var mensaje = animal + " te dio un toque";
+		enviarNotificaion(usuario.token, mensaje);
+		respuesta = {
+			id: id,
+			token: usuario.token,
+			animal: usuario.animal
+		};
+		response.send(JSON.stringify(respuesta));
+	}, function (errorObject) {
+		console.log("The read failed: " + errorObject.code);
+		respuesta = {
+			id: "",
+			token: "",
+			animal: ""
+		};
+		response.send(JSON.stringify(respuesta));
+
+	});
+});
+
+function enviarNotificaion(tokenDestinatario, mensaje) {
+	var serverKey = 'TU_APYKEY';
+	var fcm = new FCM(serverKey);
+
+	var message = {
+	    to: tokenDestinatario, // required
+	    collapse_key: '', 
+	    data: {},
+	    notification: {
+	        title: 'Notificacion desde Servidor',
+	        body: mensaje,
+	        icon: "notificacion",
+	        sound: "default",
+	        color: "#00BCD4"
+	    }
+	};
+
+	fcm.send(message, function(err, response){
+	    if (err) {
+	        console.log("Something has gone wrong!");
+	    } else {
+	        console.log("Successfully sent with response: ", response);
+	    }
+	});
+}
+
+app.listen(app.get('port'), function() {
+  console.log('Node app is running on port', app.get('port'));
+});
+
+