app.js

var express = require("express"),
    app = express(),
    bodyParser = require("body-parser"),
    mongoose = require("mongoose"),
    flash = require("connect-flash"),
    passport = require("passport"),
    LocalStrategy = require("passport-local"),
    methodOverride = require("method-override"),
    Campground = require("./models/campground"),
    Comment = require("./models/comment"),
    User = require("./models/user"),
    seedDB = require("./seeds")

//requiring routes
var commentRoutes = require("./routes/comments"),
    campgroundRoutes = require("./routes/campgrounds"),
    indexRoutes = require("./routes/index")

// mongoose.connect("mongodb://localhost/yelp_camp_v10");
mongoose.connect("mongodb://readOnlyUser:letmeRead123@ds141320.mlab.com:41320/yelpcampas");

app.use(bodyParser.urlencoded({ extended: true }));
app.set("view engine", "ejs");
app.use(express.static(__dirname + "/public"));
app.use(methodOverride("_method"));
app.use(flash());
// seedDB(); //seed the database

// PASSPORT CONFIGURATION
app.use(require("express-session")({
    secret: "Once again Rusty wins cutest dog!",
    resave: false,
    saveUninitialized: false
}));
app.use(passport.initialize());
app.use(passport.session());
passport.use(new LocalStrategy(User.authenticate()));
passport.serializeUser(User.serializeUser());
passport.deserializeUser(User.deserializeUser());

app.use(function (req, res, next) {
    res.locals.currentUser = req.user;
    res.locals.error = req.flash("error");
    res.locals.success = req.flash("success");
    next();
});

app.use("/", indexRoutes);
app.use("/campgrounds", campgroundRoutes);
app.use("/campgrounds/:id/comments", commentRoutes);

app.listen(process.env.PORT || 3000, function () {
    console.log("The YelpCamp Server Has Started!");
});