When I send data to the server Post is perfectly fine and complete works but an error
erro return :
B
Error Domain=NSCocoaErrorDomain Code=3840 "No value." UserInfo={NSDebugDescription=No value.}
return data from server perfectly
data =
[ {
"$id": "1",
"Id": 14,
"Source": 23,
"Destination_": 21,
"Exclusive": false,
"AdultPrice": "70766",
"ChildPrice": "77076",
"BabyPrice": "54109",
"VetranPrice": "118664",
"DepartureDate": "1997-09-25T00:00:00",
"ArrivalDate": "2001-03-24T00:00:00",
"TrainTypeId": 1,
"NumberofSeats": 153 } ]
You can tell what is the reason?
let request = NSMutableURLRequest(URL: todosUrlRequest)
request.HTTPMethod = "POST"
request.setValue("application/json; charset=uft-8", forHTTPHeaderField: "Content-Type")
request.addValue("application/json", forHTTPHeaderField: "Accept")
request.cachePolicy = NSURLRequestCachePolicy.ReloadIgnoringCacheData
//3
let newTodo = [
"NumberOfPassenger": tedat,
"Source": cityIDSource,
"Destination": cityIDDestination,
"DapartureDate": raftDate,
"TicketType": typeTrainID,
"TravelType": 6,
"CloseDoor": copeqtar
]
print(newTodo)
//4
let jsonTodo: NSData
do {
jsonTodo = try NSJSONSerialization.dataWithJSONObject(newTodo, options: [])
request.HTTPBody = jsonTodo
} catch {
print("Error: cannot create JSON from todo")
return
}
print(jsonTodo)
request.HTTPBody = jsonTodo
//5
let config = NSURLSessionConfiguration.defaultSessionConfiguration()
let session = NSURLSession(configuration: config)
let task = session.dataTaskWithRequest(request) {
(data, response, error) in
// statusResponse
if let HTTPResponse = response as? NSHTTPURLResponse {
let statusCode = HTTPResponse.statusCode
if statusCode == 200 {
print(response)
//6
print(data)
if data != nil {
let responseString = NSString(data: data!, encoding: NSUTF8StringEncoding)
print("responseString = \(responseString)")
}
guard let responseData = data else {
return
}
self.dataRecive = responseData
print("currect")
}else{
print("error calling POST on /todos/1")
print(error)
}
}
dispatch_async(dispatch_get_main_queue()){
actInd.stopAnimating()
}
}
task.resume()
Related
How can I do attached "postman operation" on Swift 5? i would like to use this code for login with rest service on ios(iphone).
Below is the code for Post Method,using URLSession
let Url = String(format: "http://10.10.10.53:8080/sahambl/rest/sahamblsrv/userlogin")
guard let serviceUrl = URL(string: Url) else { return }
let parameters: [String: Any] = [
"request": [
"xusercode" : "YOUR USERCODE HERE",
"xpassword": "YOUR PASSWORD HERE"
]
]
var request = URLRequest(url: serviceUrl)
request.httpMethod = "POST"
request.setValue("Application/json", forHTTPHeaderField: "Content-Type")
guard let httpBody = try? JSONSerialization.data(withJSONObject: parameters, options: []) else {
return
}
request.httpBody = httpBody
request.timeoutInterval = 20
let session = URLSession.shared
session.dataTask(with: request) { (data, response, error) in
if let response = response {
print(response)
}
if let data = data {
do {
let json = try JSONSerialization.jsonObject(with: data, options: [])
print(json)
} catch {
print(error)
}
}
}.resume()
}
Try this with Alamofire 4.x
let parameters: [String: Any] = [
"request": [
"xusercode" : "YOUR USERCODE HERE",
"xpassword": "YOUR PASSWORD HERE"
]
]
Alamofire.request("YOUR URL HERE", method: .post, parameters: parameters,encoding: JSONEncoding.default, headers: nil).responseJSON {
response in
switch response.result {
case .success:
print(response)
break
case .failure(let error):
print(error)
}
}
I'm trying to make an HTTP post request with params set in a dictionary here's my dict
let parameters = [
["name": "tag","value": "login"],
["name": "email","value": "s#s.com"],
["name": "password","value": "aaaa"]
]
but I don't to know how to access it in hers's my complete request function
func data_request(_ url:String)
{
let parameter = [
["name": "tag","value": "login"],
["name": "email","value": "s#s.com"],
["name": "password","value": "aaaa"]
]
let url:NSURL = NSURL(string: url)!
let session = URLSession.shared
let request = NSMutableURLRequest(url: url as URL)
request.httpMethod = "POST"
let paramString = parameter?
request.httpBody = paramString.data(using: String.Encoding.utf8)
let task = session.dataTask(with: request as URLRequest) {
(
data, response, error) in
guard let _:NSData = data as NSData?, let _:URLResponse = response, error == nil else {
print("error")
return
}
if let dataString = NSString(data: data!, encoding: String.Encoding.utf8.rawValue)
{
print(dataString)
}
}
task.resume()
}
Need to convert dictionary to json string like below:
let jsonData = try JSONSerialization.data(withJSONObject: parameters, options: .prettyPrinted)
After that pass to the http.Body
// insert json data to the request
request.setValue("application/json; charset=utf-8", forHTTPHeaderField: "Content-Type")
request.HTTPBody = jsonData
let task = NSURLSession.sharedSession().dataTaskWithRequest(request){ data, response, error in
if error != nil{
print("Error -> \(error)")
return
}
do {
let result = try NSJSONSerialization.JSONObjectWithData(data!, options: []) as? [String:AnyObject]
print("Result -> \(result)")
} catch {
print("Error -> \(error)")
}
}
task.resume()
return task
} catch {
print(error)
}
You need to convert the Dictionary into Data and set it to httpBody
you could solve in this way
let paramData = try? JSONSerialization.data(withJSONObject: parameter, options: [])
request.httpBody = paramData
I'm trying to upload an image to the server. As for now, I get an error response which checks if name='image', and the error means that it's not. The line where I set it is this:
body.appendString("Content-Disposition: form-data; name='image'; filename='test.jpg'")
my full code of the POST request is this: I do get a 200 and the only problem is with the name parameter which I really can't figure out.
func imageUploadRequest()
{
let stringUrl = "http://88.162.41.55/app_backend/public/api/v1/image?_r=1836486547600309"
let URL = NSURL(string: stringUrl.stringByAddingPercentEscapesUsingEncoding(NSUTF8StringEncoding)!)!
let request = NSMutableURLRequest(URL: URL)
request.HTTPMethod = "POST";
request.setValue("Bearer \(jwtToken)", forHTTPHeaderField: "Authorization")
let boundary = generateBoundaryString()
request.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")
let imageData = UIImageJPEGRepresentation(image, 1)
if(imageData == nil) {
print("image data is nil")
return
}
let body:NSMutableData = NSMutableData()
body.appendString("--\(boundary)\r\n")
body.appendString("Content-Disposition: form-data; name='image'; filename='test.jpg'")
body.appendString("Content-Type: image/jpg")
body.appendData(imageData!)
body.appendString("\r\n")
body.appendString("--\(boundary)--\r\n")
request.HTTPBody = body
let task = NSURLSession.sharedSession().dataTaskWithRequest(request) {
data, response, error in
if error != nil {
print("error=\(error)")
return
}
let responseString = NSString(data: data!, encoding: NSUTF8StringEncoding)
print(" response = \(responseString!)")
do {
let json = try NSJSONSerialization.JSONObjectWithData(data!, options: .MutableContainers) as? NSDictionary
print("json", json)
} catch {
print("bad things happened")
}
}
task.resume()
}
Any ideas? Thank you so much!!
Sample NSURLSession
func getMetaData(lePath:String, completion: (string: String?, error: ErrorType?) -> Void) {
// **** get_metadata ****
let request = NSMutableURLRequest(URL: NSURL(string: "https://api.dropboxapi.com/2/files/get_metadata")!)
let session = NSURLSession.sharedSession()
request.HTTPMethod = "POST"
request.addValue("Bearer ab-blah", forHTTPHeaderField: "Authorization")
request.addValue("application/json",forHTTPHeaderField: "Content-Type")
request.addValue("path", forHTTPHeaderField: lePath)
let cursor:NSDictionary? = ["path":lePath]
do {
let jsonData = try NSJSONSerialization.dataWithJSONObject(cursor!, options: [])
request.HTTPBody = jsonData
print("json ",jsonData)
} catch {
print("snafoo alert")
}
let task = session.dataTaskWithRequest(request, completionHandler: {data, response, error -> Void in
if let error = error {
completion(string: nil, error: error)
return
}
let strData = NSString(data: data!, encoding: NSUTF8StringEncoding)
//print("Body: \(strData)\n\n")
do {
let jsonResult = try NSJSONSerialization.JSONObjectWithData(data!, options:NSJSONReadingOptions.MutableContainers);
completion(string: "", error: nil)
} catch {
completion(string: nil, error: error)
}
})
task.resume()
}
I am trying to add video data to the HTTP Request's body but sometimes video data is turning to nil but sometimes not. Is there anything to fix this situation? When I delete the app from my app and after doing simulation again, nothing happened.
#IBAction func post(sender: AnyObject) {
let videodata = NSData(contentsOfURL: videoURL!)
let headers = [
"authorization": "Token \(userToken!)",
"content-type": "/*/",
"content-disposition": "attachment;filename=deneme.mp4",
"cache-control": "no-cache"
]
let request = NSMutableURLRequest(URL: NSURL(string: "http://molocate.elasticbeanstalk.com/video/upload/")!,
cachePolicy: NSURLRequestCachePolicy.ReloadIgnoringCacheData,
timeoutInterval: 10.0)
request.HTTPMethod = "POST"
request.allHTTPHeaderFields = headers
request.HTTPBody = videodata
let session = NSURLSession.sharedSession()
let dataTask = session.dataTaskWithRequest(request, completionHandler: { (data, response, error) -> Void in
if (error != nil) {
print(error)
} else {
//print(NSString(data: data!, encoding: NSUTF8StringEncoding))
do {
let result = try NSJSONSerialization.JSONObjectWithData(data!, options: .MutableContainers)
print("Result -> \(result)")
let statue = result["result"] as! String
if(statue == "success"){
let videoId = result["video_id"] as! String
let videoUrl = result["video_url"] as! String
print(videoUrl)
let json = [
"video_id": videoId,
"video_url": videoUrl,
"caption": "This city is awesome:)",
"category": "travel",
"tagged_users": [["username": "amertturker"]],
"location": [
[
"id": "mekmaekfmaıhjagej3ıo45j3kt348t3gkg",
"latitude": "35.342643",
"longitude": "32.345236",
"name": "Milas Merkez Kafasına göre herkes",
"address": "Milas aq"
]
]
]
let newheaders = [
"authorization": "Token \(userToken!)",
"content-type": "application/json",
"cache-control": "no-cache"
]
do {
let jsonData = try NSJSONSerialization.dataWithJSONObject(json, options: .PrettyPrinted)
print(NSString(data: jsonData, encoding: NSUTF8StringEncoding))
// create post request
let url = NSURL(string: "http://molocate.elasticbeanstalk.com/video/update/")!
let request = NSMutableURLRequest(URL: NSURL(string: "http://molocate.elasticbeanstalk.com/video/update/")!,
cachePolicy: .UseProtocolCachePolicy,
timeoutInterval: 10.0)
request.HTTPMethod = "POST"
request.allHTTPHeaderFields = newheaders
request.HTTPBody = jsonData
let task = NSURLSession.sharedSession().dataTaskWithRequest(request){ data, response, error in
print(response)
//print(NSString(data: data!, encoding: NSUTF8StringEncoding))
dispatch_async(dispatch_get_main_queue(), {
if error != nil{
print("Error -> \(error)")
return
}
do {
let result = try NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.AllowFragments)
print("Result -> \(result)")
} catch {
print("Error -> \(error)")
}
})
}
task.resume()
} catch {
print(error)
}
} else{
// self.displayAlert("Hata", message: result["result"] as! String)
// UIApplication.sharedApplication().endIgnoringInteractionEvents()
// self.activityIndicator.stopAnimating()
// self.activityIndicator.hidesWhenStopped = true
}
} catch {
print("Error -> \(error)")
}
}
})
dataTask.resume()
do {
try NSFileManager.defaultManager().removeItemAtPath(videoPath!) //.removeItemAtURL(fakeoutputFileURL!)
dispatch_async(dispatch_get_main_queue()) {
print("siiiiil")
self.performSegueWithIdentifier("finishUpdate", sender: self)
}
} catch _ {
}
Your calling the httprequest asynchronously and then trying to use the data on the calling thread. It hasn't been populated until after the http request has returned which will occur at an undetermined future time. Anything you want to do with videoData should be done inside the completion handler, otherwise you are in a race condition and it might be nil when you call it.
I am learning swift and I send a request to the server with the code below. It works for simple request and I get response from the server. My problem is I can not send a file to server.
code :
let parameters = parameter
let request = NSMutableURLRequest(URL: NSURL(string: requestUrl)!)
let boundaryConstant = "-----Boundary+\(arc4random())\(arc4random())"
let contentType = "multipart/form-data; boundary=" + boundaryConstant
let boundaryStart = "--\(boundaryConstant)\r\n"
let boundaryEnd = "--\(boundaryConstant)--\r\n"
let body:NSMutableString = NSMutableString();
for (key, value) in parameters {
body.appendFormat(boundaryStart)
body.appendFormat("Content-Disposition: form-data; name=\"\(key)\"\r\n\r\n")
body.appendFormat("\(value)\r\n")
}
body.appendFormat(boundaryEnd)
request.HTTPMethod = "POST"
request.setValue(contentType, forHTTPHeaderField: "Content-Type")
request.HTTPBody = body.dataUsingEncoding(NSUTF8StringEncoding)
let task = NSURLSession.sharedSession().dataTaskWithRequest(request) { data, response, error in
guard error == nil && data != nil else {
// check for fundamental networking error
print("error=\(error)")
return
}
if let httpStatus = response as? NSHTTPURLResponse where httpStatus.statusCode != 200 { // check for http errors
print("statusCode should be 200, but is \(httpStatus.statusCode)")
print("response = \(response)")
}
self.responseString = NSString(data: data!, encoding: NSUTF8StringEncoding)!
print("MMMMMMMM \(self.responseString)")
self.result = self.responseString.dataUsingEncoding(NSUTF8StringEncoding)! as NSData
callback(self.responseString)
}
print("code start")
task.resume()
result :
i can post file to server by this code:
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
let request = createRequest()
let task = NSURLSession.sharedSession().dataTaskWithRequest(request) { data, response, error in
if error != nil {
// handle error here
print(error)
return
}
do {
if let responseDictionary = try NSJSONSerialization.JSONObjectWithData(data!, options: []) as? NSDictionary {
print("success == \(responseDictionary)")
}
} catch {
print(error)
let responseString = NSString(data: data!, encoding: NSUTF8StringEncoding)
print("responseString = \(responseString)")
}
}
task.resume()
}
func createRequest () -> NSURLRequest {
let param = []
let boundary = generateBoundaryString()
let url = NSURL(string: "URl")!
let request = NSMutableURLRequest(URL: url)
request.HTTPMethod = "POST"
request.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")
request.setValue("userValue", forHTTPHeaderField: "X-Client-user")
request.setValue("passValue", forHTTPHeaderField: "X-Access-pass")
//let path1 = NSBundle.mainBundle().pathForResource("voice", ofType: "png") as String!
request.HTTPBody = createBodyWithParameters(param, filePathKey: "voice", paths: ["pathURl"], boundary: boundary)
return request
}
func createBodyWithParameters(parameters: [String: String]?, filePathKey: String?, paths: [String]?, boundary: String) -> NSData {
let body = NSMutableData()
if parameters != nil {
for (key, value) in parameters! {
body.appendString("--\(boundary)\r\n")
body.appendString("Content-Disposition: form-data; name=\"\(key)\"\r\n\r\n")
body.appendString("\(value)\r\n")
}
}
if paths != nil {
for path in paths! {
let url = NSURL(fileURLWithPath: path)
let filename = url.lastPathComponent
let data = NSData(contentsOfURL: url)!
let mimetype = mimeTypeForPath(path)
body.appendString("--\(boundary)\r\n")
body.appendString("Content-Disposition: form-data; name=\"\(filePathKey!)\"; filename=\"\(filename!)\"\r\n")
body.appendString("Content-Type: \(mimetype)\r\n\r\n")
body.appendData(data)
body.appendString("\r\n")
}
}
body.appendString("--\(boundary)--\r\n")
return body
}
func generateBoundaryString() -> String {
return "Boundary-\(NSUUID().UUIDString)"
}
func mimeTypeForPath(path: String) -> String {
let url = NSURL(fileURLWithPath: path)
let pathExtension = url.pathExtension
if let uti = UTTypeCreatePreferredIdentifierForTag(kUTTagClassFilenameExtension, pathExtension! as NSString, nil)?.takeRetainedValue() {
if let mimetype = UTTypeCopyPreferredTagWithClass(uti, kUTTagClassMIMEType)?.takeRetainedValue() {
return mimetype as String
}
}
return "application/octet-stream";
}
As you read here, you should use NSURLSession for HTTP work, it far more flexible and powerful; and I think is destined to replace NSURLconnection...
https://www.objc.io/issues/5-ios7/from-nsurlconnection-to-nsurlsession/
Here is a example for you...
func getMetaData(lePath:String, completion: (string: String?, error: ErrorType?) -> Void) {
// **** get_metadata ****
let request = NSMutableURLRequest(URL: NSURL(string: "https://api.dropboxapi.com/2/files/get_metadata")!)
let session = NSURLSession.sharedSession()
request.HTTPMethod = "POST"
request.addValue("Bearer ab-blah-blah", forHTTPHeaderField: "Authorization")
request.addValue("application/json",forHTTPHeaderField: "Content-Type")
request.addValue("path", forHTTPHeaderField: lePath)
let cursor:NSDictionary? = ["path":lePath]
do {
let jsonData = try NSJSONSerialization.dataWithJSONObject(cursor!, options: [])
request.HTTPBody = jsonData
print("json ",jsonData)
} catch {
print("snafoo alert")
}
let task = session.dataTaskWithRequest(request, completionHandler: {data, response, error -> Void in
if let error = error {
completion(string: nil, error: error)
return
}
let strData = NSString(data: data!, encoding: NSUTF8StringEncoding)
print("Body: \(strData)\n\n")
do {
let jsonResult = try NSJSONSerialization.JSONObjectWithData(data!, options:NSJSONReadingOptions.MutableContainers);
self.jsonParser(jsonResult,field2file: "ignore")
for (key, value) in self.parsedJson {
print("key2 \(key) value2 \(value)")
}
completion(string: "", error: nil)
} catch {
completion(string: nil, error: error)
}
})
task.resume()
}
Great answer above.. Here it's updated for Swift3:
func getMetaData(lePath:String, completion: (string: String?, error: ErrorType?) -> Void) {
// **** get_metadata ****
let request = NSMutableURLRequest(URL: NSURL(string: "https://api.dropboxapi.com/2/files/get_metadata")!)
let session = NSURLSession.sharedSession()
request.HTTPMethod = "POST"
request.addValue("Bearer ab-blah-blah", forHTTPHeaderField: "Authorization")
request.addValue("application/json",forHTTPHeaderField: "Content-Type")
request.addValue("path", forHTTPHeaderField: lePath)
let cursor:NSDictionary? = ["path":lePath]
do {
let jsonData = try NSJSONSerialization.dataWithJSONObject(cursor!, options: [])
request.HTTPBody = jsonData
print("json ",jsonData)
} catch {
print("snafoo alert")
}
let task = session.dataTaskWithRequest(request, completionHandler: {data, response, error -> Void in
if let error = error {
completion(string: nil, error: error)
return
}
let strData = NSString(data: data!, encoding: NSUTF8StringEncoding)
print("Body: \(strData)\n\n")
do {
let jsonResult = try NSJSONSerialization.JSONObjectWithData(data!, options:NSJSONReadingOptions.MutableContainers);
self.jsonParser(jsonResult,field2file: "ignore")
for (key, value) in self.parsedJson {
print("key2 \(key) value2 \(value)")
}
completion(string: "", error: nil)
} catch {
completion(string: nil, error: error)
}
})
task.resume()
}