CODEWITHSUNDEEP
iosswiftbonjour
Rajat Jain
Rajat Jain

Reputation: 1022

Create a TXT record for Bonjour NetService in Swift

I am creating an application for Peer-to-Peer Chatting using Apple's Bonjour in Swift 3.

After publishing a NetService I want to add a user_id and name parameters as TXT record. I have spent 3 - 4 hours on searching how to create a TXT record in Swift 3, but didn't find any useful solution. Once I set TXT record for a NetService, I also want to read it

For setting the TXT record data we have to use func setTXTRecord(Data?)

Please suggest me how I can Set and Get TXT record of a NetService

Upvotes: 1

Views: 1547

Answers (1)

Aaron Bratcher
Aaron Bratcher

Reputation: 6451

Try this. These are NetServiceDelegate calls.

public func netServiceDidPublish(_ service: NetService) {
    let txtDict = ["peerID": _localNode.peerID.data(using: String.Encoding.utf8)!]
    let txtData = NetService.data(fromTXTRecord: txtDict)
    if !service.setTXTRecord(txtData) {
        print("did not set txtRecord")
    }
}

public func netService(_ service: NetService, didUpdateTXTRecord data: Data) {
    let txtDict = NetService.dictionary(fromTXTRecord: data)
    if let idObject = txtDict["peerID"], let peerID = NSString(data: idObject, encoding: String.Encoding.utf8.rawValue) as String? {
        // use peerID
    }
}

If you like, you can see this in action from my project on GitHub: https://github.com/AaronBratcher/ALBPeerConnection.

Upvotes: 3

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