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app.js
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app.js
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const express = require('express');
const bodyParser = require('body-parser')
const app = express();
const http = require('http').Server(app);
const io = require('socket.io')(http);
const mongoose = require('mongoose');
const cors = require('cors');
// Setup the index.html to be server from main dir
app.use(express.static(__dirname));
// Parse Post Body as JSON
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: false}))
// Cors
app.use(cors({
origin: '*'
}));
// Model message
var Message = mongoose.model('Message',{
name : String,
message : String
})
// All messages are stored in a common array
var messages = [];
// Route GET /messages to get all messages
app.get('/messages', (req, res) => {
Message.find({},(err, messages) => {
res.send(messages);
})
})
// Route POST /messages to add new message in messages
app.post('/messages', (req, res) => {
if(req.body.name == '' || req.body.message == ''){
res.send('Body cannot be blank!', 500);
return;
}
var message = new Message(req.body);
messages.push(message);
// Add to mongo DB using .save()
// ...
// Broadcast same message to all users connected
io.emit('message', req.body);
// HTTP send response code
res.sendStatus(200);
})
// Socket.IO connection event listener
io.on('connection', () =>{
console.log('**A new user is connected to your chat!')
})
// Server Express server on port 3000
var server = http.listen(3000, () => {
console.log('Server is running on port: ', server.address().port);
console.log('Website can be accessed on http://localhost:%s', server.address().port)
});