How chat events from front end are consumed in NodejS backend

[mayurgujrathi]

How chat events from front end are consumed in NodejS backend. Because I am seeing on twilio docs its built in APIs for chat room creation, adding members, send messages to channel.

const accountSid = 'ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX';
const authToken = 'your_auth_token';
const client = require('twilio')(accountSid, authToken);

client.chat.services('ISXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX')
.channels('CHXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX')
.messages
.create({body: 'MESSAGE'})
.then(message => console.log(message.sid));

Are we sending messages through above API or we have events for same.