(Swift 3,4,5...) HTTP HEAD Request

Sends an HTTP HEAD request and gets the response.

Note: The response to an HTTP HEAD request is always just the response header. The reponse body is always 0 length (thus the reason it's called a "HEAD" request..)

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

func chilkatTest() {
    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    let http = CkoHttp()!

    // If the URL uses "https://", then the connection will be TLS.
    // Otherwise it will be TCP.
    var resp: CkoHttpResponse? = http.getHead("https://example-code.com/")
    if http.lastMethodSuccess != true {
        // A failure is when we don't get any response.  It could be a timeout, an inability to connect, etc.
        // For example, a "404 Not Found" response is still a response, and thus deemed success in terms of the API..
        print("\(http.lastErrorText!)")
        return
    }

    // Examine the response.
    print("Status Code = \(resp!.statusCode.intValue)")
    print("Status Line = \(resp!.statusLine!)")
    print("Status Text = \(resp!.statusText!)")
    print("Full Response Header:")
    print("\(resp!.header!)")
    print("----")
    var numHeaderFields: Int = resp!.numHeaderFields.intValue
    print("Num Header Fields: \(numHeaderFields)")
    var i: Int
    for i = 0; i <= numHeaderFields - 1; i++ {
        print("\(resp!.getHeaderName(i)!): \(resp!.getHeaderValue(i)!)")
    }

    resp = nil

}