HTTP POST request in Swift - swift

Question

How do I post the request on iOS? Actually when I logged into Facebook it fetches the user informations like username, from where there are login (latitude, longitude). Is it possible to use api
Link: http://buddysin.aumkiiyo.com/fbc
My code is:
#IBAction func btnAPI(sender: UIButton)
{
//startConnection()
connectToWebAPI()
}
func connectToWebAPI()
{
//setting up the base64-encoded credentials
let id = "1620912344817986"
//let password = "pass"
let loginString = NSString(format: "%#:%#", id)
let loginData: NSData = loginString.dataUsingEncoding(NSUTF8StringEncoding)!
let base64LoginString = loginData.base64EncodedStringWithOptions(nil)
//creating the requestz
let url = NSURL(string: "http://buddysin.aumkiiyo.com/fbc")
var request = NSMutableURLRequest(URL: url!)
let config = NSURLSessionConfiguration.defaultSessionConfiguration()
let session = NSURLSession.sharedSession()
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue("application/json", forHTTPHeaderField: "Accept")
let urlConnection = NSURLConnection(request: request, delegate: self)
request.HTTPMethod = "POST"
request.setValue(base64LoginString, forHTTPHeaderField: "Authorization")
let task = session.dataTaskWithURL(url!, completionHandler: {data, response, error -> Void in
if (error != nil) {
println(error)
}
else {
// converting the data into Dictionary
var error: NSError?
let jsonResult = NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers, error: &error) as! NSDictionary
println(jsonResult)
}
})
//fire off the request
task.resume()
}
while I run, the fatal error where displayed as
`fatal error: unexpectedly found nil while unwrapping an Optional value`
in the "jsonResult"

Answer 1

i think it is better to use Alomafire. As AFNetWorking in Objective-C it is a library which simplified a lot http request.

Answer 2

Visit this question to check for my post-request function (if
you don't want to use Alamofire for any reasons)
Visit this question to check for steps you need to do if you
want to add Alamofire to your XCode-project
If you need to get json-data from your server, use
SwiftyJSON. It's as simple as dragging SwiftyJSON.swift into
your project with checking "Copy items if needed" and using like
let jsonData = JSON(data: yourDataFromServer)
Also you can view this question to check out for steps to encode
json-post data to send it to server.
Hope I helped :)

Answer 3

You should find which varible due to this error:
for example data,
if let dataTemp = data as? NSDictionary {
}
FYI:
Here is a way of 'POST' method of AFNetworking in swift, below code should be in your connectToWebAPI method, wrap your url ready into NSURL.
let manager = AFHTTPRequestOperationManager(baseURL: NSURL(string: yourURL))
manager.POST("path", parameters: ["key":value], success: { (opeartion:AFHTTPRequestOperation!, data:AnyObject!) -> Void in
},failure: { (operation:AFHTTPRequestOperation!, error:NSError!) -> Void in
})
Tutorial to install AFNetworking.
https://github.com/AFNetworking/AFNetworking/wiki/Getting-Started-with-AFNetworking

Answer 4

It is quite easy to do with Alamofire
func postSomething(completionHandler: #escaping CompletionHandler){
let loginString = NSString(format: "%#:%#", id)
let loginData: NSData = loginString.dataUsingEncoding(NSUTF8StringEncoding)!
let base64LoginString = loginData.base64EncodedStringWithOptions(nil)
let headers: HTTPHeaders = [
"Content-Type": "application/json",
"Accept": "application/json",
"Authorization": "base64LoginString",
]
let parameters: Parameters = [
"parameter": value,
"parameter2": value2
]
Alamofire.request("http://buddysin.aumkiiyo.com/fbc", method: .post, parameters: parameters, encoding: URLEncoding.default, headers: SFAppServicesManager.sharedInstance.genericHeader()).responseJSON { response in
if let JSON = response.result.value {
let userDictionary = JSON as! NSDictionary
completionHandler(true)
} else {
completionHandler(false)
}
}
}