How to use lib jitsi meet library

I’m trying to use lib jitsi javascript library.
I’ve installed docker-jitsi-meet to my own computer.
Create app.js and html file.
Add “” script tag.
Than try to connect to server with options below

const options = {
hosts: {
domain: null,
muc: null
},
serviceUrl: ‘xmpp.meet.jitsi’,
useStunTurn: false
};

but i can not connect.
What’s the wrong thi issue ? How can i connect and create room with lib-jitsi-meet api.
Shouldi use domain and muc properties ?
how can i get those values from .env file.

I changed options properties to

const options = {
hosts: {
domain: ‘meet.jitsi’,
muc: ‘muc.meet.jitsi’
},
serviceUrl: ‘wss://xmpp.meet.jitsi:5280/xmpp-websocket’,
useStunTurn: false
};

With this options when i look at ws tab in chrome, xmpp-websocket shows error “Error in connection establishment: net::ERR_NAME_NOT_RESOLVED”