server.js

const express = require('express');
const mongoose = require('mongoose');
const bodyParser = require('body-parser');
const passport = require('passport');
const cors = require('cors');

const users = require('./routes/api/users');
const friends = require('./routes/api/friend');
const messages = require('./routes/api/message');

const app = express();

app.use(cors());
app.use(bodyParser.urlencoded({
    extended: false
}));
app.use(bodyParser.json());



const db = require('./config/keys').mongoURI;

mongoose.connect(db, {useNewUrlParser:true})
    .then(()=>console.log('MongoDB connected'))
    .catch(err=>console.log(err));

mongoose.set('useFindAndModify', false);

//passport middleware
app.use(passport.initialize());

//passport config
require("./config/passport")(passport);

//routes
app.use('/api/users', users);
app.use('/api/friends', friends);
app.use('/api/messages', messages);

const port = process.env.PORT || 5000;
app.listen(port, () => console.log(`Server up and running on port ${port} !`));