无法使用Node.js在Mac OSX上发送UDP广播

Question

im using this code (official node sample):

const dgram = require('dgram');
const message = Buffer.from('Some bytes');
const client = dgram.createSocket('udp4');
client.send(message, 12345, '192.168.1.255', (err) => {
  client.close();
});

to send a broadcast packet on network. But I get a 'EACCES' error on mac (no problem on windows). Note: I can send to a specific address (for example 192.168.1.11) successfully, the problem is with broadcasting ...

any idea? thanks

Answer 1

Seems i need a

.setBroadcast(true);

(after binding) that fixed my problem.