Hi there I'm trying to make a post request so I made a class, a simple class to test the url but is not responding, I mean I can use other url different to the url that I suppose to use and It's responding so the request it's ok what is not working is the url. The weird thing is that in postman the url is working the server response ok. I also enable the app transport security allow arbitrary load to yes and still not working could you have any idea why is this? Thanks in advance.
Here is my code
#IBAction func buton(_ sender: Any) {
let parameters: [String : Any] = ["acceptPrivacyNotice": true,
"name": "xxxx xxxx",
"email":"xxx#mail.com",
"password": "qwerty2012",
"passwordConfirm": "qwerty2012",
"deviceID": "",
"isProvider": false,
"idTypeProvider":1 ]
guard let url = URL(string: "https://www.apps-sellcom-dev.com/Engie/api/account/register") else {return}
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue("YOURAPIKEY==", forHTTPHeaderField: "Authorization")
guard let httpBody = try? JSONSerialization.data(withJSONObject: parameters, options: []) else {
return
}
request.httpBody = httpBody
let session = URLSession.shared
session.dataTask(with: request) { (data, response, error) in
if let response = response {
print("Response",response)
}
if let data = data {
do {
let json = try JSONSerialization.jsonObject(with: data, options: [])
print(json)
} catch {
print(error)
}
}
}.resume()
}
The certificate of the domain is about to expire, so I guess thats why the URL wasn't found.
I enabled the app transport security and set the URL in the info.plist using LSApplicationQueriesSchemes, and now I'm getting a response from the server.
Related
I am trying to reach a site that should take the username and password given and return a JSON which contains information stating whether or not the login data provided was valid or not.
However, all I'm getting back is the site's HTML code instead of a response. I've tried the request with the same parameters on https://www.hurl.it/ and have gotten the correct response so that does not seem to be the issue.
I use the following code:
private func uploadToAPI(username: String, password: String) {
guard let url = URL(string: "http://api.foo.com/login.php"),
let encodedUsername = username.addingPercentEncoding(withAllowedCharacters: CharacterSet.alphanumerics),
let encodedPassword = password.addingPercentEncoding(withAllowedCharacters: CharacterSet.alphanumerics) else {
self.loginButton.isLoading = false
return
}
let httpBodyParameters = ["user": encodedUsername, "password": encodedPassword, "client": "ios", "version": "5"]
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.httpBody = try? JSONSerialization.data(withJSONObject: httpBodyParameters, options: JSONSerialization.WritingOptions.prettyPrinted)
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.setValue("application/json", forHTTPHeaderField: "Accept")
URLSession.shared.dataTask(with: request) { (data, response, error) in
if let response = response {
print(response.mimeType) // Prints "text/html"
}
if let data = data {
print(try? JSONSerialization.jsonObject(with: data, options: JSONSerialization.ReadingOptions.allowFragments)) // Prints nil
print(String(data: data, encoding: String.Encoding.utf8)) // Prints the site's HTML
}
}.resume()
}
I fail to see where the issue is. I've also tried not setting the HTTP headers but that makes no difference. Anyone got any ideas?
It seems like not setting the HTTP header fields and using a string literal instead of a Dictionary as HTTP body data did it for me.
For anyone interested this is the code that now receives the expected response:
guard let url = URL(string: "http://api.foo.com/login.php?"),
let encodedUsername = username.addingPercentEncoding(withAllowedCharacters: CharacterSet.alphanumerics),
let encodedPassword = password.addingPercentEncoding(withAllowedCharacters: CharacterSet.alphanumerics) else {
if let delegate = self.delegate {
delegate.viewModelDidRejectLogin(self)
}
return
}
let httpBodyString = "user=\(encodedUsername)&password=\(encodedPassword)&client=ios&version=5"
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.httpBody = httpBodyString.data(using: String.Encoding.utf8)
URLSession.shared.dataTask(with: request) { (data, response, error) in
guard let data = data, error == nil else {
print(error)
return
}
do {
if let json = try JSONSerialization.jsonObject(with: data) as? [String : AnyObject] {
self.readLoginResponse(json)
}
} catch {
print(error)
}
}.resume()
I want to send mobile number and password to the server in the ios app. Backend team has given postman API like below image.
Success when sent as form-data
Below Swift URL request failing, What I'm doing wrong here?
func sendReq() {
let Url = String(format: "http://xxxxxxx/mobile/request_otp")
guard let serviceUrl = URL(string: Url) else { return }
let parameterDictionary = ["mobile_number" : "xxxxxxxxxx", "password" : "12345678"]
var request = URLRequest(url: serviceUrl)
request.httpMethod = "POST"
request.cachePolicy = .useProtocolCachePolicy
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
// params dict as data
guard let httpBody = try? JSONSerialization.data(withJSONObject: parameterDictionary, options: []) else {
return
}
request.httpBody = httpBody
// session
let session = URLSession.shared
//data task
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()
}
But above API call throwing error like
{
error = TRUE;
message = "All fields Required!";
}
Set the Content-Type HTTP header:
request.allHTTPHeaderFields = ["Content-Type": "application/json"]
This way you inform the server that you are sending JSON.
Can you try:
{\"mobile_number\":xxxxxxxxxx,\"password\":12345678}
and select Application/Json instead of text.
Here's the code:
func makePOSTCall(endpoint: String, languageName: String) {
guard let url = URL(string: endpoint) else {
print("Could not create URL.")
return
}
let requestLang: [String: Any] = ["name": languageName]
let requestBody = try? JSONSerialization.data(withJSONObject: requestLang)
var urlRequest = URLRequest(url: url)
urlRequest.httpBody = requestBody
urlRequest.httpMethod = "POST"
let session = URLSession.shared
let task = session.dataTask(with: urlRequest) {
data, response, error in
guard let data = data, error == nil else {
print(error?.localizedDescription ?? "No data")
return
}
let responseJSON = try? JSONSerialization.jsonObject(with: data, options: [])
if let responseJSON = responseJSON as? [String: Any] {
print(responseJSON)
}
}
task.resume()
}
This sends a {"name": "Go"} JSON dictionary to Flask. Flask is supposed to append the language name to an array and return the full array in the response. Now, this works when I send the request manually, so it's not Flask's error. But when I send the above from iOS, I get request.json == None in the flask console. Clearly, I'm sending an empty body, but I shouldn't be. Any idea where I went wrong?
I call the function as
#IBAction func pressedMakePOSTCall(_ sender: UIButton) {
makePOSTCall(endpoint: "http://127.0.0.1:5000/lang", languageName: "Go")
}
I tried adding a trailing slash, just get a 404 in the console. The only question similar to mine that I've found is this: How to make HTTP Post request with JSON body in Swift and my code is basically identical.
#weissja19 was correct, I needed to set content type to application/json. Adding
urlRequest.setValue("application/json", forHTTPHeaderField: "Content-Type")
urlRequest.setValue("application/json", forHTTPHeaderField: "Accept")
fixed the error. Now the code works as I expected.
P.S. I couldn't catch it because I use the app Paw for testing, which sets content type automatically.
You might want to do it manually:
urlRequest.httpBody = "name=\(languageName)".data(using: .utf8)
Use JSONSerialization will make your POST body like {"name":"abc"} which might not be supported by your server
I am trying to receive and process a POST request being sent from my iOS app to my Node.js web server. The server responds with HTTP Error 502 whenever I try to send this POST request. Could you please look at my code below and see what is wrong with it? Thank you!
Node.js Code
app.post('/applogin', function(req, res) {
var parsedBody = JSON.parse(req.body);
console.log(parsedBody)
});
Swift Code (POST function)
func httpPost(jsonData: Data) {
if !jsonData.isEmpty {
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.httpBody = jsonData
URLSession.shared.getAllTasks { (openTasks: [URLSessionTask]) in
NSLog("open tasks: \(openTasks)")
}
let task = URLSession.shared.dataTask(with: request, completionHandler: { (responseData: Data?, response: URLResponse?, error: Error?) in
NSLog("\(response)")
})
task.resume()
}
}
Swift Code (sending of the POST request)
#IBAction func onClick(_ sender: Any) {
let username = Username.text
let password = Password.text
var dataString = "username: \(username), password: \(password)"
let data = dataString.data(using: .utf8)
httpPost(jsonData: data!)
}
Thanks in advance!
You have to send a json instead dataString, and you have to set the "Content Type" header with value "application/json"
Swift 2
let request = NSMutableURLRequest(URL: requestUrl)
request.HTTPMethod = "POST"
let params = ["username" : username, "password" : password] as Dictionary<String, AnyObject>
request.HTTPBody = NSJSONSerialization.dataWithJSONObject(params, options:NSJSONWritingOptions.PrettyPrinted)
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
Many answers they don't mention that we need to set header for the request from Swift side before sending to the backend otherwise it'll be a string in a wrong format that we can't use JSON.parse, here's what I firgured out (NOTE the IMPORTANT line):
let json = [
"email": emailTextField.text
]
let jsonData = try! JSONSerialization.data(withJSONObject: json)
let url = URL(string: BASE_URL + "/auth/register")!
var request = URLRequest(url: url)
request.httpMethod = "POST"
// insert json data to the request
request.httpBody = jsonData
//IMPORTANT
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue("application/json", forHTTPHeaderField: "Accept")
let task = URLSession.shared.dataTask(with: request) { data, response, error in
guard let data = data, error == nil else {
print(error?.localizedDescription ?? "No data")
return
}
let responseJSON = try? JSONSerialization.jsonObject(with: data, options: [])
if let responseJSON = responseJSON as? [String: Any] {
print(responseJSON)
}
}
task.resume()
And in your NodeJS with Express just call req.body and you're done
Try this:
app.post('/applogin', function(req, res) {
var parsedBody = JSON.parse(req.body);
console.log(parsedBody)
res.send("Request received")
});
I want to securely provide my data from the API using JWT token.So Currently I have implemented security in the backend and each ajax call eith the header
url:"https://dataurl,
contentType : "application/json; charset=utf-8",
headers : TokenHeader(),
But now I want to send the same data to be consumed by an IOS App which is developed in swift.I am not a IOS mobile developer and when I look into how they make the rest calls I found that something like this can be done:
let todosEndpoint: String = "https://dataurl"
guard let todosURL = URL(string: todosEndpoint) else {
print("Error: cannot create URL")
return
}
var todosUrlRequest = URLRequest(url: todosURL)
todosUrlRequest.httpMethod = "GET"
let newTodo: [String: Any] = ["title": "My First todo", "completed": false, "userId": 1]
let jsonTodo: Data
do {
jsonTodo = try JSONSerialization.data(withJSONObject: newTodo, options: [])
todosUrlRequest.httpBody = jsonTodo
} catch {
print("Error: cannot create JSON from todo")
return
}
let session = URLSession.shared
let task = session.dataTask(with: todosUrlRequest) {
(data, response, error) in
guard error == nil else {
print("error calling POST on /todos/1")
print(error)
return
}
guard let responseData = data else {
print("Error: did not receive data")
return
}
So now my question is like ajax call in my web app how to consume rest service from the mobile app side.Any help is appreciated?
I suggest you to use headers like this
let request = NSMutableURLRequest(url: NSURL(string: urlString)! as URL)
request.addValue("application/json",forHTTPHeaderField: "Content-Type")
request.addValue("application/json",forHTTPHeaderField: "Accept")
request.cachePolicy = .reloadIgnoringLocalCacheData
You want something like (depending on what header values you need to send):
todosUrlRequest.setValue("token value", forHTTPHeaderField: "Authorization")