How to catch publish ack error

[lyw1991]

When I publish message to a topic without acl, how can I catch the acl error?
The publish callback return like:
{ cmd: 'pubrel', qos: 2, messageId: 30411 }

MQTTX client can catch the error

[robertsLando]

@lyw1991

client.pulbish(...., (err, packet) => {
	if(err.code === 5) // not authorized
})

You can get all reason codes messages by using ReasonCodes enum:

import { ReasonCodes } from 'mqtt'