I cannot for the life of me figure out this problem. And I hope you guys can.
I want to send a username and a password over a HTTPS POST. Problem is, I cannot make it work.
The code I am trying to make work right now is:
import UIKit
import Foundation
import PlaygroundSupport
let url:URL = URL(string: "https://mywebsite.com/myAPI")!
let session = URLSession.shared
var request = URLRequest(url: url)
request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
request.httpMethod = "POST"
request.cachePolicy = NSURLRequest.CachePolicy.reloadIgnoringCacheData
let paramString = "username=Pleasework&password=itwont"
request.httpBody = paramString.data(using: String.Encoding.utf8)
let task = session.dataTask(with: request as URLRequest) {
(
data, response, error) in
guard let data = data, let _:URLResponse = response, error == nil else {
print("error")
return
}
let dataString = String(data: data, encoding: String.Encoding.utf8)
print(dataString ?? "Got nothing")
}
task.resume()
Looking at my server logs, this request goes through, but it is supposed to create a file containing said params. I tried using a Chrome extension called "Request Maker", and the file was created. (The file is created with PHP, and is irrelevant to this question)I found that the file was only created once the content type was specified, so I tried that in Swift.
I am using Swift 3 and Xcode 8, I hope you guys can help me send a simple post request with a content type to a URL, all of the other answers on Stackoverflow have not helped me.
Thanks
Related
I'm trying to convert a curl command in order to use it within swift for an ios app i'm making. I'm using a playground project to try out this feature.
The curl command is as follows:
curl -L -X POST 'https://myurl.com/mydata' \-H 'x-api-key: xxx' \-H 'Content-Type: application/json' \-d '{"uniqueNumber": “F4”}’
When I enter this into terminal, my data is displayed.
I have browsed through stackoverflow and managed to find articles like this and this
I'm still fairly new to swift and from what I understand, curl does not work in swift and so you have to convert it to a URLRequest.
I have attempted this with my code below but keep getting a message that says "Missing Authentication Token". What am I doing wrong?
import PlaygroundSupport
import Foundation
let key = "xxx"
let url = URL(string: "https://myurl.com/mydata")
let contentType = "application/json"
let uniqueNumber = "F4"
var request = URLRequest(url: url!)
request.addValue("x-api-key: \(key)", forHTTPHeaderField: "-H")
request.addValue("Content-Type: \(contentType)", forHTTPHeaderField: "-H")
request.addValue("uniqueNumber: \(uniqueNumber)", forHTTPHeaderField: "-d")
let task = URLSession.shared.dataTask(with: request) { data, response, error in
guard error == nil else {
print(error!)
return
}
guard let data = data else {
print("Data is empty")
return
}
let json = try! JSONSerialization.jsonObject(with: data, options: [])
print(json)
}
task.resume()
PlaygroundPage.current.needsIndefiniteExecution = true
update -
Found the issue. I had to include the requestHTTP method, as well as the httpBody. After doing this it was fully working. See below for the working code:
import PlaygroundSupport
import Foundation
let key = "xxx"
let url = URL(string: "https://myurl.com/mydata")
let contentType = "application/json"
//setting and converting the uniqueNumber (input) to a data item so it can be recognized by the API
var uniqueNumber: Data? = "{\"uniqueNumber\": \"F09\"}".data(using: .utf8) // non-nil
var request = URLRequest(url: url!)
request.httpMethod = "POST"
request.addValue(key, forHTTPHeaderField: "x-api-key")
request.addValue(contentType, forHTTPHeaderField: "Content-Type")
request.httpBody = uniqueNumber
URLSession.shared.dataTask(with: request) { (data, response, error) in
guard error == nil else { print(error!.localizedDescription); return }
guard let data = data else { print("Empty data"); return }
if let str = String(data: data, encoding: .utf8) {
print(str)
}
}.resume()
PlaygroundPage.current.needsIndefiniteExecution = true
You need to set header like this...
request.addValue(key, forHTTPHeaderField: "x-api-key")
request.addValue(contentType, forHTTPHeaderField: "Content-Type")
request.addValue(uniqueNumber, forHTTPHeaderField: "uniqueNumber")
You were setting invalid headers for a request.
EDIT
You also need to add Authentication Token in header like below.
let authToken = "THIS IS AUTHENTICATION TOKEN TO BE PASSED ON SERVER"
request.addValue(authToken, forHTTPHeaderField: "authenticationToken")
//Please make sure to pass the authentication token the key "authenticationToken".
//Please change as per actual key to be passed
I'm trying to create a URL Request in Swift to send an HTTP POST request to a Discord Webhook, and the request completes in a failure defined as 'responseProblem'. I'm not sure where the response problem is originating from.
Discord should technically be able to accept HTTP requests, and a bunch of research into the issue has led me nowhere. I've worked with Discord webhooks before, but I've never played around with this kind of stuff before, so I'm kinda stuck for what I should do now.
import Foundation
enum APIError:Error {
case responseProblem
case decodingProblem
case encodingProblem
}
struct APIRequest {
let resourceURL: URL
init(endpoint: String) {
let resourceString = "<discord-webhook-url-removed-for-privacy>"
guard let resourceURL = URL(string: resourceString) else {fatalError()}
self.resourceURL = resourceURL
}
func save (_ messageToSave:Message, completion: #escaping(Result<Message, APIError>) -> Void ) {
do {
var urlRequest = URLRequest(url: resourceURL)
urlRequest.httpMethod = "POST"
urlRequest.addValue("application/json", forHTTPHeaderField: "Content-Type")
urlRequest.httpBody = try JSONEncoder().encode(messageToSave)
let dataTask = URLSession.shared.dataTask(with: urlRequest) { data, response, _ in
guard let httpResponse = response as? HTTPURLResponse, httpResponse.statusCode == 200, let
jsonData = data else {
completion(.failure(.responseProblem)) // <<< 'responseProblem' is outputted in console as the error
return
}
do {
let messageData = try JSONDecoder().decode(Message.self, from: jsonData)
completion(.success(messageData))
} catch {
completion(.failure(.decodingProblem))
}
}
dataTask.resume()
} catch {
completion(.failure(.encodingProblem))
}
}
}
When I run this Swift program, I expected it to send a request to the Discord Webhook to send a message into it's designated channel. However, the only error outputted into the console is responseProblem. Please let me know if there is anything further I need to add to get the root cause of the problem (I'm still semi-fresh to Swift, and I normally work with JavaScript, so I'm not sure how to properly debug in Swift and Xcode.)
Swift app is built in iOS 12.2 because Xcode doesn't like this stuff in iOS 13
This is a simplified version of how I post to a Discord webhook with Swift. From your post I can't see how you're converting your custom Message struct into a JSON dictionary, but you need at least the key/value pair for "content" to successfully post a Discord Webhook. And of course the posts can be customized in many other ways (with a custom "username" etc.).
var messageString: String = ""
guard let url = URL(string: "your-full-discord-webhook-url") else { return }
let messageJson: [String: Any] = ["content": messageString]
let jsonData = try? JSONSerialization.data(withJSONObject: messageJson)
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.addValue("application/json", forHTTPHeaderField: "content-type")
request.httpBody = jsonData
let task = URLSession.shared.dataTask(with: request)
task.resume()
I have a php webAPI which works well and I want to login with that in my app. I want to use cookies for that. So, I save the cookies when the user signs in and that works. I store it in userdefaults when I want to use only place cookies into HTTPCookieStorage.shared.
I try to use this for my new request, and my question is how can I add the cookies to my request?
I tried this but it's not working...
let cookiesArray = HTTPCookieStorage.shared.cookies
print(cookiesArray)
//HTTPCookieStorage.shared.setCookies(cookiesArray!, for: url, mainDocumentURL: url)
let headers = HTTPCookie.requestHeaderFields(with: cookiesArray!)
var urlRequest = URLRequest(url: url)
urlRequest.httpMethod = "POST"
urlRequest.httpShouldHandleCookies = true
urlRequest.httpBody = postString.data(using: String.Encoding.utf8)
urlRequest.allHTTPHeaderFields = headers
//urlRequest.setValue("PHPSESSID=oe22uf92poc5c7s23u4ukl83g0", forHTTPHeaderField: "Cookie")
//URLSessionConfiguration().httpCookieAcceptPolicy = .always
let session = URLSession.shared
session.configuration.httpCookieStorage = HTTPCookieStorage.shared
session.configuration.httpCookieAcceptPolicy = .always
session.configuration.httpShouldSetCookies = true
session.configuration.httpAdditionalHeaders = headers
let task = session.dataTask(with: urlRequest) { (data, response, error) in
print(data)
print(response)
print(error)
print("itt az end\n")
}
task.resume()
I can't comment yet, but I agree that more info is needed. If you are getting errors those would be helpful to post. Also, what you are getting for your
data
response
error
would be helpful.
Other than that, I would first look at setting up Charles as an HTTP Proxy so you can see exactly what is happening when you make the request. Knowing what response you are receiving will let you know what is going wrong.
https://www.charlesproxy.com/
I can't get the URLSession to send anything in the body of a POST request.
Here is my code:
// Set up the request
var request = URLRequest(url: URL(string: baseURL + url)!)
request.httpMethod = "POST"
let jsonData = try JSONSerialization.data(withJSONObject: values,
options: .prettyPrinted)
request.httpBody = jsonData
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue("application/json", forHTTPHeaderField: "Accept")
let config = URLSessionConfiguration.ephemeral
let session = URLSession(configuration: config, delegate: self, delegateQueue: OperationQueue.main)
let task = session.dataTask(with: request) { data, response, err in
if let err = err {
print(err)
}
else {
let jsondata = data!
do {
let sessionData =
try JSONSerialization.jsonObject(with: jsondata, options: .mutableLeaves)
as? Dictionary<String, String>
callback.taskComplete(response: sessionData, task: task)
}
catch {
print(error)
}
}
}
task.resume()
The server receives the request, but the body is empty and the content type header is null. I can't use the default session because I'm developing with self-signed certificates, so I need my class to be a URLSession delegate.
I'm using Swift 3, XCode 8, and iOS 10. Any help would be appreciated.
Problem solved. It was a combination of errors. If the URL doesn't have the trailing "/", Jetty sends a 302 redirect to the same URL with the slash appended. The iOS client does the redirect with a "GET," so there is nothing in the body. When I add the trailing "/", the request works fine.
I hope this answer will help someone doing iOS development. I searched Google for hours before I posted this question. I finally found the answer in a post about the Apache Java HttpClient. It has the same behavior.
Thank you for all the responses.
I send the same HTTP message from a HTTP proxy client and with NSURLRequest + NSURLConnection, and get back different result. It is an authentication request. From HTTP proxy authentication request is accepted, sending from app not. Why? Accepted means after redirection HTML will contains no Oops substring.
let url = NSURL(string: "http://www.swisshttp.weact.ch/en/user/login")
let request = NSMutableURLRequest(URL: url)
request.HTTPMethod = "POST"
request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
let email2 = (viewController!.email.text as NSString).stringByReplacingOccurrencesOfString("#", withString: "%40")
let str = "name=\(email2)&pass=\(viewController!.password.text)&form_id=user_login" as NSString
let d = str.dataUsingEncoding(NSUTF8StringEncoding)
if let d2 = d {
request.HTTPBody = d2
let urlConnection = NSURLConnection(request: request, delegate: self)
}
UPDATE
I have put #teamnorge's code below into playground and into an empty Single View Application project. Returned HTML in project contains the Oops substring, code used in playground not containes it, any idea what is going on, why same request produce different HTML result? I get failed message also from iOS device and from simulator too.
UPDATE
Removed NSURLRequest cache like here recommended, but still not works as expected. And here.
UPDATE
Tried to remove all the credentials like here, but didn't help, no credential was found.
It looks like when you receive HTTP 302 and new Location URL, iOS does automatically fetch the page by this URL, so I guess your response is in fact the HTML content of the redirection page. Please verify.
UPDATE:
import UIKit
import XCPlayground
let url = NSURL(string: "http://www.swisshttp.weact.ch/en/user/login")
let request = NSMutableURLRequest(URL: url!)
let str = "name=kukodajanos%40icloud.com&pass=jelszo&form_id=user_login" as NSString
let d = str.dataUsingEncoding(NSUTF8StringEncoding)
request.HTTPBody = d
request.HTTPMethod = "POST"
request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.currentQueue()) { response, maybeData, error in
if let data = maybeData {
let contents = NSString(data:data, encoding:NSUTF8StringEncoding)
println(contents)
if contents!.rangeOfString("Oops").length == 0 {
println("success")
} else {
println("failed")
}
} else {
println(error.localizedDescription)
}
}
XCPSetExecutionShouldContinueIndefinitely()