server.js

// Include Server Dependencies
var express = require("express");
var bodyParser = require("body-parser");
var logger = require("morgan");
var mongoose = require("mongoose");

//Require Article Schema
var Article = require("./models/article.js");

// Create Instance of Express
var app = express();
var PORT = process.env.PORT || 3000; 

// Run Morgan for Logging
app.use(logger("dev"));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: true}));
app.use(bodyParser.text());
app.use(bodyParser.json({type:"application/vnd.api+json"}));

app.use(express.static("./public"));

// -------------------------------------------------

// MongoDB Configuration configuration
if(process.env.NODE_ENV == "production"){
    mongoose.connect("mongodb://heroku_3bhgs4rt:o297oh1h9n8tb7fl7b5araq70e@ds151153.mlab.com:51153/heroku_3bhgs4rt")
} else{
mongoose.connect("mongodb://localhost/nytreact");
}

var db = mongoose.connection;

db.on("error", function (err) {
  console.log("Mongoose Error: ", err);
});

db.once("open", function () {
  console.log("Mongoose connection successful.");
});

//Require Article Schema
var Article = require("./models/article.js");

// -------------------------------------------------

var router = require("./controllers/controller.js");
app.use("/", router);


// Listener
app.listen(PORT, function() {
  console.log("App listening on PORT: " + PORT);
});