41 lines
2.0 KiB
JavaScript
41 lines
2.0 KiB
JavaScript
import mongoose from 'mongoose'; // MongoDB (database)
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import express from 'express'; // Backend App (server)
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import cors from 'cors'; // HTTP headers (enable requests)
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import morgan from 'morgan'; // Logs incoming requests
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import dotenv from 'dotenv'; // Secures variables
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// import usersRoutes from './api/routes/usersRoutes.js';
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// ^ ^ ^ un-comment this to use imported route(s)
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// doing this will link the following files: server.js -> usersRoutes.js -> usersControllers.js -> User.js
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// initialize app
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const app = express();
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// middlewares
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app.use(express.json({ limit: '10mb', extended: false })); // body parser
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app.use(express.urlencoded({ limit: '10mb', extended: false })); // url parser
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app.use(cors({ origin: 'http://localhost:3000' })); // enables http requests on react development server
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app.use(morgan('common')); // logs requests
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dotenv.config(); // protected variables
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// configure db:
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// for "atlas" edit CONNECTION_URL in -> .env file || for "community server" edit <dbname>
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const CONNECTION_URL = process.env.CONNECTION_URL || 'mongodb://localhost:27017/<dbname>';
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const DEPRECATED_FIX = { useNewUrlParser: true, useUnifiedTopology: true, useCreateIndex: true };
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// connect to db
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mongoose
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.connect(CONNECTION_URL, DEPRECATED_FIX)
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.catch((error) => console.log('❌ MongoDB connection error', error)); // listen for errors on initial connection
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mongoose.connection.on('connected', () => console.log('✅ MongoDB connected')); // connected
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mongoose.connection.on('disconnected', () => console.log('❌ MongoDB disconnected')); // disconnected
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mongoose.connection.on('error', (error) => console.log('❌ MongoDB connection error', error)); // listen for errors during the session
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// routes
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app.get('/', (request, response, next) => response.status(200).json('Hello World - Express.js'));
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// app.use('/api/v1/users', usersRoutes);
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// ^ ^ ^ un-comment this to use imported route(s)
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// server is listening for requests
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const PORT = process.env.PORT || 8080;
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app.listen(PORT, () => console.log(`✅ Server is listening on port: ${PORT}`));
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