HttpDNS

#Xcode16 compatible HttpDNS 2.2.0 is compiled by Xcode16, don't support Xcode16 If you're using Xcode15, please use 2.1.0

Apple request developer to update to Xcode16 news link: https://developer.apple.com/news/?id=9s0rgdy9

Beginning April 24, 2025, apps uploaded to App Store Connect must be built with Xcode 16 or later using an SDK for iOS 18, iPadOS 18, tvOS 18, visionOS 2, or watchOS 11.

1: Get the SDK

(1) Add Pod source in you Pod file

source 'https://github.com/CocoaPods/Specs.git'
source 'https://github.com/DLinkSDK/deeplink-dev-specs.git'

(2) add dependency

pod 'HttpDNS'

2: Usage

(1) Create HttpDNS Fetcher

let dnsFetcher: HttpDNSFetcher = .init(identifier: "mainDNSFetcher", queue: .init(identifier: "mainDNSFetcher", queue: .global()))

If you want to http dns work on your prefer queue, pass the queue to the initialze method

(2) Preload HttpDNS for domains

let domains: [String] = [
    "google.com",
    "youtube.com"
]
// preload some domains
dnsFetcher.preload(domains: domains)

(3) Get DNS info for domain

If dns info for domain has been resolved, you can get the cached dns info.

let domain = "google.com"
if let cachedDNS = dnsFetcher.getCachedDNSInfo(for: domain) { 
    print("cached dns for \(domain) is \(cachedDNS)")
} else {
    print("dns not resolved yet")
}

(4) Force refresh DNS info for domain

dnsFetcher.refresh(domain: "google.com", force: true)

(5) Use DNS info to make url request

let request = dnsInfo.createURLRequest(scheme: "https", path: "index.html")

or you can construct an url by direct using ip info in dns resolved.

let urlString = "https://" + dnsInfo.ipv4 + "/index.html"

(6) Observe DNS info change

You can also use combine to observe dns info change. Update your business info when the callback fires.

dnsFetcher.publisherForDNSInfos()
    .sink(receiveValue: { dnsInfo in
    print("dns info updated \(dnsInfo)")
})