ios - objective - the swift programming language pdf

¿Cómo enviar parámetros POST en Swift?

Question

Aquí un código:

var URL: NSURL = NSURL(string: "http://stackoverflow.com")
var request:NSMutableURLRequest = NSMutableURLRequest(URL:URL)
request.HTTPMethod = "POST"
request.HTTPBody = ??????
NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.mainQueue())
{
(response, data, error) in
println(NSString(data: data, encoding: NSUTF8StringEncoding))
}

¿Qué debo escribir en request.HTTPBody si deseo enviar la consulta POST "key" = "value" ?

Answer 1

No es diferente de Objective-C, HTTPBody espera un objeto NSData:

var bodyData = "key1=value&key2=value&key3=value"
request.HTTPBody = bodyData.dataUsingEncoding(NSUTF8StringEncoding);

Tendrá que configurar los valores y las claves usted mismo en la cadena.

Answer 2

espero que sea útil

Importa el archivo alamofire.swift en tu proyecto.

func goLive () {
var url:String = "Your url"!
url += "user/login"
var param = ["email": self.txtmail.text, "password":self.txtpassword.text]
request(.POST, url, parameters: param)
.responseJSON { (_, _, JSON, _) in
//println(JSON)
if let gData = JSON as? NSDictionary {
println(gData)
} else {
let alert=UIAlertView()
alert.title="Alert"
alert.message=gData.valueForKey("message")as? String
alert.addButtonWithTitle("OK")
alert.show()
}
}
}
}

Answer 3

 var post:NSString = "api=myposts&userid=/(uid)&page_no=0&limit_no=10"
NSLog("PostData: %@",post);
var url1:NSURL = NSURL(string: url)!
var postData:NSData = post.dataUsingEncoding(NSASCIIStringEncoding)!
var postLength:NSString = String( postData.length )
var request:NSMutableURLRequest = NSMutableURLRequest(URL: url1)
request.HTTPMethod = "POST"
request.HTTPBody = postData
request.setValue(postLength, forHTTPHeaderField: "Content-Length")
request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
request.setValue("application/json", forHTTPHeaderField: "Accept")
var reponseError: NSError?
var response: NSURLResponse?
var urlData: NSData? = NSURLConnection.sendSynchronousRequest(request, returningResponse:&response, error:&reponseError)
if ( urlData != nil ) {
let res = response as NSHTTPURLResponse!;
NSLog("Response code: %ld", res.statusCode);
if (res.statusCode >= 200 && res.statusCode < 300)
{
var responseData:NSString = NSString(data:urlData!, encoding:NSUTF8StringEncoding)!
NSLog("Response ==> %@", responseData);
var error: NSError?
let jsonData:NSDictionary = NSJSONSerialization.JSONObjectWithData(urlData!, options:NSJSONReadingOptions.MutableContainers , error: &error) as NSDictionary
let success:NSInteger = jsonData.valueForKey("error") as NSInteger
//[jsonData[@"success"] integerValue];
NSLog("Success: %ld", success);
if(success == 0)
{
NSLog("Login SUCCESS");
self.dataArr = jsonData.valueForKey("data") as NSMutableArray
self.table.reloadData()
} else {
NSLog("Login failed1");
}
} else {
NSLog("Login failed2");
}
} else {
NSLog("Login failed3");
}

Esto te ayudará definitivamente