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server.js
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server.js
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express = require('express');
require('dotenv').config();
//handle synchronous erros (e.g. using undefined variables)
process.on('uncaughtException', err => {
console.log('Uncaught Exception.💥 Shutting down...');
console.log(err.name, err.message);
process.exit(1);
});
const mongoose = require('mongoose');
const app = require('./app');
const port = process.env.PORT || 3000
//localhost development db
//mongoose.connect('mongodb://localhost/prato', {useNewUrlParser: true, useUnifiedTopology: true, useCreateIndex: true});
const DB = process.env.DATABASE_CONNECTION.replace('<PASSWORD>',process.env.DATABASE_PASSWORD);
//production db - MongoDB Atlas
mongoose.connect(DB, {
useNewUrlParser: true,
useUnifiedTopology: true,
useCreateIndex: true});
//Depracation warning: Use MongoDB driver's findOneAndUpdate() rather than findAndModify(); https://mongoosejs.com/docs/deprecations.html#findandmodify
mongoose.set('useFindAndModify', false);
mongoose.connection.on('connected', ()=>console.log('Connected to MongoDB...'));
const server = app.listen(port, () => {
console.log(`Server listening on port ${port}.`);
});
//handle asynchronous errors outside of express (e.g. mongoDB connection error). close server (allow tasks to finish) and then shut down app
process.on('unhandledRejection', err => {
console.log('Unhandled Rejection.💥 Shutting down...');
console.log(err.name, err.message);
server.close( () => {
process.exit(1);
});
});