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server.js
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server.js
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// Require necessary NPM Packages
const express = require('express');
const mongoose = require('mongoose');
const cors = require('cors');
// Require Route Files
const indexRouter = require('./app/routes/index');
const articlesRouter = require('./app/routes/articles');
// Require DB Configuration File
const db = require('./config/db');
// Establish Database Connection
mongoose.connect(db, {useNewUrlParser: true});
mongoose.connection.once('open', function() {
console.log('connected to mongo');
});
// Instantiate Express Application Object
const app = express();
// Define PORT for API to run on
const port = process.env.PORT || 5000;
// Define PORT for React App to run on
const reactPort = 3000;
/*** Middleware ***/
// Add `bodyParser` middleware which will parse JSON requests into
// JS objects before they reach the route files.
//
// The method `.use` sets up middleware for the Express application
app.use(express.json());
// Set CORS headers on response from this API using the `cors` NPM package
// `CLIENT_ORIGIN` is an environment variable that will be set on Heroku
app.use(cors({ origin: process.env.CLIENT_ORIGIN || `http://localhost:${reactPort}` }));
/*** Routes ***/
// Mount imported Routers
app.use(indexRouter);
app.use(articlesRouter);
// Start the server to listen for requests on a given port
app.listen(port, function() {
console.log(`blogy is listening on port ${port}`);
});