Python post request equivalent in Swift

Question

I have a small script written in python and works fine so i want to implement the same thing in my swift app but could not find a way

here is my python code:

payload = {'login': 'Submit', 'username': 'username', 'password': 'password', 'redirect': 'iph.php'}
with session() as c:
    c.post('http://mywebsite.com/iph.php', data=payload)
    response = c.get('http://mywebsite.com/mobile.php?page=profile')
    tree = html.fromstring(response.content)
    males = tree.xpath('//td[@id="someinfo"]/text()')
    females = tree.xpath('//td[@id="someinfo2"]/text()')
    print(response.headers)
    print(response.text)

So basically i receive 2 text infos from the script (someinfo and someinfo2) and in swift app i need to print them on labels.

Thank you

Two methods that come to mind. NSSession & NSStream; investigate, try something and come back if you need more help? — user3069232, Mar 15 '16 at 11:05

score 2 · Answer 1 · edited May 23 '17 at 12:07

Use a third-party framework like Alamofire:

let payload = ["login": "Submit", "username": "username", "password": "password", "redirect": "iph.php"]

Alamofire.request(.POST, "http://mywebsite.com/iph.php", parameters: payload)
    .response { request, response, data, error in
        guard let data = data else {
            fatalError("No data returned")
        }
        do {
            let html = try NSXMLDocument(data: data, options: NSXMLDocumentTidyHTML)
            let root = html.rootElement()!
            let males = try root.nodesForXPath("//td[@id='someinfo']/text()")
            let females = try root.nodesForXPath("//td[@id='someinfo2']/text()")
        } catch let error as NSError {
            print(error.localizedDescription)
        }
    }

Use only Foundation (i.e. Apple-provided) classes:

let payload = ["login": "Submit", "username": "username", "password": "password", "redirect": "iph.php"]
let request = NSMutableURLRequest(URL: NSURL(string: "http://mywebsite.com/iph.php")!)
request.HTTPMethod = "POST"
request.HTTPBody = NSKeyedArchiver.archivedDataWithRootObject(payload)

let config = NSURLSessionConfiguration.defaultSessionConfiguration()
let session = NSURLSession(configuration: config)
let task = session.dataTaskWithRequest(request) { data, response, error in
    guard let data = data else {
        fatalError("No data returned")
    }
    do {
        let html = try NSXMLDocument(data: data, options: NSXMLDocumentTidyHTML)
        let root = html.rootElement()!
        let males = try root.nodesForXPath("//td[@id='someinfo']/text()")
        let females = try root.nodesForXPath("//td[@id='someinfo2']/text()")
    } catch let error as NSError {
        print(error.localizedDescription)
    }
}

task.resume()

Notes

Since your request is transported over unsecured HTTP, you may need to set App Transport Security to allow it.
You can't use Alamofire in a console application, or in a playground.
Both methods execute asynchronously. You must keep the main queue going while waiting for the response. In a GUI application, the run loop will keep your app going so it's not a concern. For a console application, you can pause the main queue by calling sleep(secs) or use Grand Central Dispatch to wait for the request.

thank you for your response. It makes sense to me instead i can't import NSXMLDocument i mean the error is: Use of unresolved identifier 'NSXMLDocument' — ggnoredo, Mar 15 '16 at 12:10
I'm using os x 10.11.3 with xCode 7.2.1 and iOS 9 development — ggnoredo, Mar 15 '16 at 12:19
I thought you were on OS X all this time! `NSXMLDocument` isn't available in iOS. Use a third party class like [Hpple](https://github.com/topfunky/hpple) — Code Different, Mar 15 '16 at 12:23
OK will try something similar in Hpple. Thank you for your answer — ggnoredo, Mar 15 '16 at 12:24

Python post request equivalent in Swift

1 Answers1

Use a third-party framework like Alamofire:

Use only Foundation (i.e. Apple-provided) classes:

Notes