My current code prints the header information, but I want the body response. I'm trying to obtain a token to use for another request.
request.httpMethod = "GET"
request.allHTTPHeaderFields = headers
let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
if (error != nil) {
print(error!)
} else {
let httpResponse = response as? HTTPURLResponse
print(httpResponse!)
}})
dataTask.resume()
The content of the response is in the data variable of the completion block of dataTask(with: request).
Related
As part of an HTTP server request I need to upload an .XML file in a POST request that includes query information. Yet simply using URLSession.shared.uploadTask(with:, fromFile:) doesn't seem to work. Like the following:
func reportRequest(url: URL) -> Void {
let fileURL: URL = URL(fileURLWithPath: ".../search_xml.xml")
var urlRequest = URLRequest(url: url)
urlRequest.httpMethod = "POST"
urlRequest.setValue(authToken, forHTTPHeaderField: "authorization")
let task = URLSession.shared.uploadTask(with: urlRequest, fromFile: fileURL) {data, response, error in
print(String(data: data!, encoding: .utf8)!)
print(response)
}
task.resume()
I have achieved this on Python using the files parameters in the requests module, and passing a dictionary in it like the following:
headers = {'authorization': authToken, }
files = {'xmlRequest': open('.../search.xml', 'rb')}
response = requests.post(url, headers=headers, files=files)
I also achieved this in RestMan (a browser extension to manage REST APIs) by adding a form data in the body, with "xmlRequest" as key and choosing the .XML file as value.
It might seem like I have to build request body myself in SWIFT, but I have little knowledge in that, and the tutorials I find about it are mostly about uploading Images, which might be different.
Thanks in advance!
Here's a generic example to upload a file.
let headers = [
"content-type": "multipart/form-data;",
"authorization": "authToken",
]
let parameters = [
[
"name": "xmlfile",
"fileName": "search_xml.xml"
]
]
var body = ""
var error: NSError? = nil
for param in parameters {
let paramName = param["name"]!
body += "--\(boundary)\r\n"
body += "Content-Disposition:form-data; name=\"\(paramName)\""
if let filename = param["fileName"] {
let contentType = param["content-type"]!
let fileContent = String(contentsOfFile: filename, encoding: String.Encoding.utf8)
if (error != nil) {
print(error)
}
body += "; filename=\"\(filename)\"\r\n"
body += "Content-Type: \(contentType)\r\n\r\n"
body += fileContent
} else if let paramValue = param["value"] {
body += "\r\n\r\n\(paramValue)"
}
}
let request = NSMutableURLRequest(url: NSURL(string: "https://example.com/fileupload")! as URL,
cachePolicy: .useProtocolCachePolicy,
timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data
let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
if (error != nil) {
print(error)
} else {
let httpResponse = response as? HTTPURLResponse
print(httpResponse)
}
})
dataTask.resume()
So I have my send email function as seen below:
func email() {
let session = URLSession.shared
let request = NSMutableURLRequest(url: NSURL(string: "https://api.mailgun.net/v3/sandbox################################/messages")! as URL)
request.httpMethod = "POST"
let credentials = "api:key-################################-########-########"
request.setValue("Basic \(credentials.toBase64())", forHTTPHeaderField: "Authorization")
let data = "from: Swift Email <(test#test.com)>&to: [myemail#gmail.com,(myemail#gmail.com)]&subject:Hello&text:Testing_some_Mailgun_awesomness"
request.httpBody = data.data(using: String.Encoding.ascii)
let task = session.dataTask(with: request as URLRequest, completionHandler: {(data, response, error) in
if let error = error {
print(error)
}
if let response = response {
print("url = \(response.url!)")
print("response = \(response)")
let httpResponse = response as! HTTPURLResponse
print("response code = \(httpResponse.statusCode)")
}
})
task.resume()
}
So I guess either my API key is wrong or my request URL is wrong. To find my request URL, I went to https://app.mailgun.com/app/dashboard and then scrolled down to the Sending Domains section and copied that. To get my API key I went to https://app.mailgun.com/app/account/security/api_keys and just copied the Private API Key. I'm really not sure why I'm getting this invalid code--thank you in advance if you figure it out!
Side note: Not really sure if the data constant is set up right (in terms of missing or having too many parens), so if you could check that too that would be phenomenal.
I have a software called "paw" it helps forming REST API call for Xcode, curl, php, etc.
I don't know if this could help you
class MyRequestController {
func sendRequest(somevar: String, completion: #escaping (Books) -> Void) {
/* Configure session, choose between:
* defaultSessionConfiguration
* ephemeralSessionConfiguration
* backgroundSessionConfigurationWithIdentifier:
And set session-wide properties, such as: HTTPAdditionalHeaders,
HTTPCookieAcceptPolicy, requestCachePolicy or timeoutIntervalForRequest.
*/
let sessionConfig = URLSessionConfiguration.default
/* Create session, and optionally set a URLSessionDelegate. */
let session = URLSession(configuration: sessionConfig, delegate: nil, delegateQueue: nil)
/* Create the Request:
(POST https://api.mailgun.net/v3/YOUR_DOMAIN_NAME/messages)
*/
guard var URL = URL(string: "https://api.mailgun.net/v3/YOUR_DOMAIN_NAME/messages") else {return}
var request = URLRequest(url: URL)
request.httpMethod = "POST"
// Headers
request.addValue("Basic YXBpOllPVVJfQVBJX0tFWQ==", forHTTPHeaderField: "Authorization")
request.addValue("multipart/form-data; charset=utf-8; boundary=__X_PAW_BOUNDARY__", forHTTPHeaderField: "Content-Type")
// Body
let bodyString = "--__X_PAW_BOUNDARY__\r\nContent-Disposition: form-data; name=\"from\"\r\n\r\n'Excited User <mailgun#YOUR_DOMAIN_NAME>'\r\n--__X_PAW_BOUNDARY__\r\nContent-Disposition: form-data; name=\"to\"\r\n\r\nYOU#YOUR_DOMAIN_NAME\r\n--__X_PAW_BOUNDARY__\r\nContent-Disposition: form-data; name=\"to\"\r\n\r\nbar#example.com\r\n--__X_PAW_BOUNDARY__\r\nContent-Disposition: form-data; name=\"subject\"\r\n\r\n'Hello'\r\n--__X_PAW_BOUNDARY__\r\nContent-Disposition: form-data; name=\"text\"\r\n\r\n'Testing some Mailgun awesomeness!'\r\n--__X_PAW_BOUNDARY__--\r\n"
request.httpBody = bodyString.data(using: .utf8, allowLossyConversion: true)
/* Start a new Task */
let task = session.dataTask(with: request, completionHandler: { (data: Data?, response: URLResponse?, error: Error?) -> Void in
if (error == nil) {
// Success
let statusCode = (response as! HTTPURLResponse).statusCode
print("URL Session Task Succeeded: HTTP \(statusCode)")
}
else {
// Failure
print("URL Session Task Failed: %#", error!.localizedDescription);
}
})
task.resume()
session.finishTasksAndInvalidate()
}
}
**** and you CALL this function a bit like this
MyRequestController().sendRequest(somevar: "something")
take a look at https://www.youtube.com/watch?v=44APgBnapag for more details
this tutorial show how to do REST API calls with Xcode, this example it scan a barcode, send the scanned code via a function that calls the API and return infos...
So I am trying to get a number from my DB. My get call returns 1 when I use postman. However when I run this code underneath, I get 1 byte.
func getDbVersionFromServer(callback: #escaping (_ serverDbVersion: Int16)-> ()) {
let urlPath = "\(baseApiUrl)/users/getDBVersion"
let url = NSURL(string: urlPath)
let session = URLSession.shared
let request = NSMutableURLRequest(url: url as! URL)
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
getTokensFromDB(){dbTokens in
request.addValue(dbTokens["accessToken"]!, forHTTPHeaderField: "accessToken")
request.addValue(dbTokens["refreshToken"]!, forHTTPHeaderField: "refreshToken")
request.httpMethod = "GET"
let task = session.dataTask(with: request as URLRequest, completionHandler: {data, response, error -> Void in
if let httpResponse = response as? HTTPURLResponse {
if (httpResponse.statusCode == 200){
let aToken = httpResponse.allHeaderFields["accessToken"] as? String
updateAccessTokenOnly(newAccessToken: aToken!)
let dbVersion = data
print("here is data: \(data!) and here is dbVersion \(dbVersion!)")
callback(0)
}
}
})
task.resume()
}
}
What am I doing wrong here? And how do I get my 1? Thanks in advance!
data is type of Data so if your response is not returning JSON you can use String(data:encoding:) to get your expected result.
let task = session.dataTask(with: request as URLRequest, completionHandler: {data, response, error -> Void in
if let httpResponse = response as? HTTPURLResponse {
if (httpResponse.statusCode == 200){
let aToken = httpResponse.allHeaderFields["accessToken"] as? String
updateAccessTokenOnly(newAccessToken: aToken!)
if let data = data, let stringResponse = String(data: data, encoding: .utf8) {
print("Response \(stringResponse)")
}
callback(0)
}
}
})
task.resume()
Im attemping to make a HTTPRequest using NSURLSession. When I set the full url the request returns the correct data but when using parameters (NSJSONSerialization.dataWithJSONObject -> HTTPBody I get this error
error Domain=NSURLErrorDomain Code=-1005 "The network connection was lost."
is there something im doing wrong here?
let json = ["api_key": "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"]
do {
let jsonData = try NSJSONSerialization.dataWithJSONObject(json, options: .PrettyPrinted)
let url = NSURL(string: "https://api.themoviedb.org/3/discover/movie")!
let request = NSMutableURLRequest(URL: url)
request.HTTPBody = jsonData
request.HTTPMethod = "GET"
request.setValue("application/json; charset=utf-8", forHTTPHeaderField: "Content-Type")
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()
} catch {
print(error)
}
}
This is not a duplicate! I looked at the suggested answer (none of them worked) before asking this question
In your case that issue can be solved by changing the request.HTTPMethod = "GET" to request.HTTPMethod = "POST"
You should not send HTTP Body in the get request, to send the data with the body you should change HTTPMethod to post
Note: Please check if this api method supports POST requests, if it don't support post you can't use it with http body/post, as per doc i only find 'get' request for the discover/movie which can be like this:
let url = NSURL(string: "http://api.themoviedb.org/3/discover/movie?api_key=YOUR_API_KEY")!
let request = NSMutableURLRequest(URL: url)
request.addValue("application/json", forHTTPHeaderField: "Accept")
let session = NSURLSession.sharedSession()
let task = session.dataTaskWithRequest(request) { data, response, error in
if let response = response, data = data {
print(response)
print(String(data: data, encoding: NSUTF8StringEncoding))
} else {
print(error)
}
}
task.resume()
Ref: You can check more information from this url: http://docs.themoviedb.apiary.io/#reference/discover/discovermovie/get
Problem
I would like to use the MailGun service to send emails from a pure Swift app.
Research So Far
As I understand it, there are two methods to send an email via MailGun. One is to email MailGun with the emails, and MailGun will redirect it (See Send via SMTP). That will, as I understand it, not work, as iOS cannot programatically automatically send mail, and must use methods that require user intervention. As such, I should use the API directly. As I understand it, I need to open a URL to do this, and so I should use some form of NSURLSession, as per this SO answer
Code
MailGun provides documentation for Python, which is as follows:
def send_simple_message():
return requests.post(
"https://api.mailgun.net/v3/sandbox(Personal info).mailgun.org/messages",
auth=("api", "key-(Personal info)"),
data={"from": "Excited User <(Personal info)>",
"to": ["bar#example.com", "(Personal info)"],
"subject": "Hello",
"text": "Testing some Mailgun awesomness!"})
with (Personal info) being substituted for keys/information/emails.
Question
How do I do that in Swift?
Thanks!
In python, the auth is being passed in the header.
You have to do a http post request, passing both the header and the body.
This is a working code:
func test() {
let session = NSURLSession.sharedSession()
let request = NSMutableURLRequest(URL: NSURL(string: "https://api.mailgun.net/v3/sandbox(Personal info).mailgun.org/messages")!)
request.HTTPMethod = "POST"
let data = "from: Excited User <(Personal info)>&to: [bar#example.com,(Personal info)]&subject:Hello&text:Testinggsome Mailgun awesomness!"
request.HTTPBody = data.dataUsingEncoding(NSASCIIStringEncoding)
request.setValue("key-(Personal info)", forHTTPHeaderField: "api")
let task = session.dataTaskWithRequest(request, completionHandler: {(data, response, error) in
if let error = error {
print(error)
}
if let response = response {
print("url = \(response.URL!)")
print("response = \(response)")
let httpResponse = response as! NSHTTPURLResponse
print("response code = \(httpResponse.statusCode)")
}
})
task.resume()
}
people are getting 400 or 401 errors because none of the other answers construct the url correctly. here is some code that works in swift 5 and iOS15:
func sendEmail() {
// variablize our https path with API key, recipient and message text
let mailgunAPIPath = "https://api:YOUR_API_KEY#api.mailgun.net/v3/YOUR_DOMAIN/messages?"
let emailRecipient = "RECIPIENT#EMAIL.COM"
let emailMessage = "Testing%20email%20sender%20variables"
// Create a session and fill it with our request
let session = URLSession.shared
let request = NSMutableURLRequest(url: NSURL(string: mailgunAPIPath + "from=USER#YOUR_DOMAIN&to=\(emailRecipient)&subject=A%20New%20Test%21&text=\(emailMessage)")! as URL)
// POST and report back with any errors and response codes
request.httpMethod = "POST"
let task = session.dataTask(with: request as URLRequest, completionHandler: {(data, response, error) in
if let error = error {
print(error)
}
if let response = response {
print("url = \(response.url!)")
print("response = \(response)")
let httpResponse = response as! HTTPURLResponse
print("response code = \(httpResponse.statusCode)")
}
})
task.resume()
}
requests.post sends an HTTP POST request, encoding key/value pairs as application/x-www-form-urlencoded. You need to do the same.
convert the set of key-value pairs into application/x-www-form-urlencoded as per How to escape the HTTP params in Swift
compose the request using the resulting string for data & send it as per iOS : http Post using swift
I spent hours trying to get the selected answer working, but to no avail.
Although I was finally able to get this working properly with a large HTTP response. I put the full path into Keys.plist so that I can upload my code to github and broke out some of the arguments into variables so I can have them programmatically set later down the road.
// Email the FBO with desired information
// Parse our Keys.plist so we can use our path
var keys: NSDictionary?
if let path = NSBundle.mainBundle().pathForResource("Keys", ofType: "plist") {
keys = NSDictionary(contentsOfFile: path)
}
if let dict = keys {
// variablize our https path with API key, recipient and message text
let mailgunAPIPath = dict["mailgunAPIPath"] as? String
let emailRecipient = "bar#foo.com"
let emailMessage = "Testing%20email%20sender%20variables"
// Create a session and fill it with our request
let session = NSURLSession.sharedSession()
let request = NSMutableURLRequest(URL: NSURL(string: mailgunAPIPath! + "from=FBOGo%20Reservation%20%3Cscheduler#<my domain>.com%3E&to=reservations#<my domain>.com&to=\(emailRecipient)&subject=A%20New%20Reservation%21&text=\(emailMessage)")!)
// POST and report back with any errors and response codes
request.HTTPMethod = "POST"
let task = session.dataTaskWithRequest(request, completionHandler: {(data, response, error) in
if let error = error {
print(error)
}
if let response = response {
print("url = \(response.URL!)")
print("response = \(response)")
let httpResponse = response as! NSHTTPURLResponse
print("response code = \(httpResponse.statusCode)")
}
})
task.resume()
}
The Mailgun Path is in Keys.plist as a string called mailgunAPIPath with the value:
https://API:key-<my key>#api.mailgun.net/v3/<my domain>.com/messages?
Hope this offers a solution to anyone else having issues with MailGun and wanting to avoid a 3rd party solution!
Swift 3 answer:
func test() {
let session = URLSession.shared
var request = URLRequest(url: URL(string: "https://api.mailgun.net/v3/sandbox(Personal info).mailgun.org/messages")!)
request.httpMethod = "POST"
let data = "from: Excited User <(Personal info)>&to: [bar#example.com,(Personal info)]&subject:Hello&text:Testinggsome Mailgun awesomness!"
request.httpBody = data.data(using: .ascii)
request.setValue("key-(Personal info)", forHTTPHeaderField: "api")
let task = session.dataTask(with: request, completionHandler: {(data, response, error) in
if let error = error {
print(error)
}
if let response = response {
print("url = \(response.url!)")
print("response = \(response)")
let httpResponse = response as! HTTPURLResponse
print("response code = \(httpResponse.statusCode)")
}
})
task.resume()
}