mdns-discovery

Multicast DNS

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mdns Multicast DNS

NPM version License

Some Examples:

Find all Amazon Fire TV devices on the local network: ```js var Mdns = require('mdns-discovery'); var mdns = new Mdns({
timeout: 4,
returnOnFirstFound: true,
name: '_amzn-wplay._tcp.local',
find: 'amzn.dmgr:'
}); mdns.run (function(res) {
res.forEach(enry) {
console.log(entry);
}
}); ``` List all mdns questions and answers for 10 seconds: ```js var Mdns = require('mdns-discovery'); var mdns = new Mdns({ timeout: 10 }); mdns.on('packet', function (packets, rinfo) {
if (packets.answers) packets.answers.forEach(function(packet, i) {
console.log(`A: ${rinfo.address} - packet[${i}]=${packet.name}, type=${packet.type}, class=${packet.class}, ttl=${packet.ttl}}`);
});
if (packets.questions) packets.questions.forEach(function(packet, i) {
console.log(`Q: ${rinfo.address} - packet[${i}]=${packet.name}, type=${packet.type}, class=${packet.class}, ttl=${packet.ttl}}`);
});
}); mdns.run (); ``` Presence: ```js var mdns = require('mdns-discovery')(); mdns.onIP('192.168.1.31', function (packet, rinfo) {
if (packet.answers.length) {
console.log(rinfo.address + ' is present');
}
}).run (); ``` Filter: ```js var mdns = require('mdns-discovery')(); var mdns = Mdns({
timeout: 3,
name: '_amzn-wplay._tcp.local',
find: 'amzn.dmgr:'
}); var allreadyUsed = {ip: '192.168.1.94'}, {ip: '192.168.1.91'} ; mdns.setFilter('ip', allreadyUsed).run (function(res) {
res.forEach(function(v) {
console.log(v);
});
}); ```