will payload typed as Buffer incompatible with browser code

[Boudewijn26]

The will#payload property requires a Buffer to be passed. Though I find it does support strings. Since Buffers are only a thing in Node.JS this means any browser code using the will option need to cast their string to Buffer

const clientId = "my-client"
const client = await mqtt.connectAsync(url, {
  username,
  password,
  clientId,
  will: {
    topic: `health/${clientId}`,
    payload: 'disconnected' as unknown as Buffer, // cast because browsers don't have Buffer
    qos: 1,
    retain: true
  }
})

[robertsLando]

Would you like to submit a PR to fix this issue?

[Boudewijn26]

I wouldn't mind: mqttjs/mqtt-packet#147