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app-pusher.js
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app-pusher.js
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const express = require('express');
const bodyParser = require('body-parser');
const cors = require('cors');
const Pusher = require('pusher');
const Sentiment = require('sentiment');
require('dotenv').config();
const app = express();
app.use(cors());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());
// Ensure that your pusher credential are properly set in the .env file
const pusher = new Pusher({
appId: process.env.PUSHER_APP_ID,
key: process.env.PUSHER_APP_KEY,
secret: process.env.PUSHER_APP_SECRET,
cluster: process.env.PUSHER_APP_CLUSTER,
encrypted: true
});
app.set('port', process.env.PORT || 3000);
app.post('/messages', (req, res) => {
const sentiment = new Sentiment();
const sentimentScore = sentiment.analyze(req.body.text).score;
const payload = {
text: req.body.text,
username: req.body.username,
time: req.body.time,
sentiment: sentimentScore
}
// Trigger message event on the chat channel
pusher.trigger('chat', 'message', payload);
res.send(payload)
});
// Start our server
app.listen(app.get('port'), () => {
console.log("Listening on port " + app.get('port'));
});