I have to update user location when the user is logged in only. As I need to update location in background mode (I used https://github.com/voyage11/Location repository to receive background mode delegate call), so I put update location call in AppDelegate.
When a user logs into the server and requests any other rest API, HTTP request gets session object. But only update location rest API request doesn't get the session object.
I have tried to send cookie by setting a cookie to the HTTPHeader of request object directly. But, it doesn't contain session object.
extension AppDelegate : LocationTrackerDelegate {
func updateLocation(location: CLLocationCoordinate2D) {
let loc = [ "lat": location.latitude, "lng": location.longitude]
let urlStr = IRAPIPathManager.sharedManager.pathForUpdateLocation()
let cookie = NSHTTPCookieStorage.sharedHTTPCookieStorage().cookies?.last
// create post request
let url = NSURL(string: urlStr)!
let request = NSMutableURLRequest(URL: url)
request.HTTPMethod = "POST"
request.HTTPShouldHandleCookies = true
// Set Cookie
if cookie != nil {
let date = Utility.getDateStringFromNSDate((cookie?.expiresDate)!, format: "EEE dd MMM yyyy HH:mm:ss ZZZZ")
let cooki = "\(cookie!.name)=\(cookie!.value); Path=\(cookie!.path); Expires=\(date); HttpOnly"
request.setValue( cooki , forHTTPHeaderField: "Set-Cookie")
}
request.setValue("application/json; charset=utf-8", forHTTPHeaderField: "Content-Type")
let jsonData = try NSJSONSerialization.dataWithJSONObject(loc, options: .PrettyPrinted)
request.HTTPBody = jsonData
let task = NSURLSession.sharedSession().dataTaskWithRequest(request){ data, response, error in
}
task.resume()
}
}
When a user logs in to the server, the server sends a session object to the device. When any HTTP rest calls are made, the session object is inserted into the request internally. But, updateLocation API call is only one which does get the session object. Is there any scope of HTTP session object? Please pardon me if I am wrong.
Please help me, Thanks.
Related
I have created a screen with a text field called customer_number text field and another screen with a text field called password text field. I want to integrate my app with an existing API made by the backend developers. I am new to IOS Development and I don't know how to go about it. How do I make a get request and pass the login credentials for the user to login?
I want to get the customer number from the API and pass it to the app and enable the customer to log in.
I think this question is too big and complex to be replied exhaustively. You didn't tell us about the API. What kind of input does it take? What kind of response?
Supposing the simplest case. You API expects JSON objects as input and respond with another JSON object containing the information you request.
I usually do tasks like this using the NSURLRequest.
let js = ["Username":username, "Password":password]
let session = URLSession.init(configuration: .default)
let url = URL(...)
var req = URLRequest.init(url: url, cachePolicy: .reloadIgnoringLocalAndRemoteCacheData, timeoutInterval: 10)
req.httpMethod = "POST"
// Add some header key-value pairs
req.addValue(..., forHTTPHeaderField: ...)
...
let task = session.dataTask(with: request) { (data, response, error) in
guard error == nil else { return }
guard let responseData = data else { return }
let code = (response as! HTTPURLResponse).statusCode
// Checking for code == 200 states for authorised user. Generally log-in APIs should return some 4xx code if not allowed or non-authorised user.
if code == 200 {
// Now we try to convert returned data as a JSON object
do {
let json = try JSONSerialization.jsonObject(with: responseData, options: [])
// use your json object here, for example checking if contains the user number...
} catch {
// handle errors
}
}
}
task.resume()
I coded this very quickly, please check the correctness of al mechanism!
Below is my code for HTTP request for getting and post. What I wanted to know is how to do HTTP request for delete and put. I have made it possible for get and post to work. I want to know how on the part of delete and put based on my code below. what to change in my postcode when I want to change it to delete? what is lacking? I wanted to delete using ID
like for example "id": 16,
let parameters = ["name": "test", "desc": "test" , "reward":"1.00" , "sched":"2018-04-05T11:49:51+08:00", "occurrence":["name": "once"]
, "status": "created", "created_by": "test#gmail.com","created_for": "test.com"] as [String : Any]
guard let url = URL(string: "http://test.tesst.eu:8000/api/v1/test/") else { return }
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
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)
}
if let data = data {
do {
let json = try JSONSerialization.jsonObject(with: data, options: [])
print(json)
} catch {
print(error)
}
}
}.resume()
get
guard let url = URL(string: "http://test.test:8000/api/v1/test") else { return }
let session = URLSession.shared
session.dataTask(with: url) { (data, response, error) in
if let response = response {
print(response)
}
if let data = data {
print(data)
do {
let json = try JSONSerialization.jsonObject(with: data, options: [])
print(json)
} catch {
print(error)
}
}
}.resume()
The only one that differs is GET with the parameters are in the url itself , POST & DELETE & PUT are work the same way , just change the httpMethod parameter and specify httpBody if you wanted to , meaning
DELETE : means delete a resource from a specific url
PUT : place a resource in to a web server
//
let parameters = ["ID": "16"] as [String : Any]
guard let url = URL(string: "http://test.tesst.eu:8000/api/v1/test/") else { return }
var request = URLRequest(url: url)
request.httpMethod = "DELETE"
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
guard let httpBody = try? JSONSerialization.data(withJSONObject:parameters, options: []) else { return }
request.httpBody = httpBody
You should go through difference between each method types. It will help you, what should you do and when.
PUT
Store an entity at a URI. PUT can create a new entity or update an existing one. A PUT request is idempotent. Idempotency is the main difference between the expectations of PUT versus a POST request.
The PUT method requests that the enclosed entity be stored under the supplied Request-URI. If the Request-URI refers to an already existing resource, the enclosed entity SHOULD be considered as a modified version of the one residing on the origin server. If the Request-URI does not point to an existing resource, and that URI is capable of being defined as a new resource by the requesting user agent, the origin server can create the resource with that URI. If a new resource is created, the origin server MUST inform the user agent via the 201 (Created) response. If an existing resource is modified, either the 200 (OK) or 204 (No Content) response codes SHOULD be sent to indicate successful completion of the request. If the resource could not be created or modified with the Request-URI, an appropriate error response SHOULD be given that reflects the nature of the problem. The recipient of the entity MUST NOT ignore any Content-* (e.g. Content-Range) headers that it does not understand or implement and MUST return a 501 (Not Implemented) response in such cases.
Modify the address with an ID of 1:
PUT /addresses/1
Note: PUT replaces an existing entity. If only a subset of data elements are provided, the rest will be replaced with empty or null.
urlRequestInstance.httpMethod = "PUT"
DELETE
Request that a resource be removed; however, the resource does not have to be removed immediately. It could be an asynchronous or long-running request.
The DELETE method requests that the origin server delete the resource identified by the Request-URI. This method MAY be overridden by human intervention (or other means) on the origin server. The client cannot be guaranteed that the operation has been carried out, even if the status code returned from the origin server indicates that the action has been completed successfully. However, the server SHOULD NOT indicate success unless, at the time the response is given, it intends to delete the resource or move it to an inaccessible location.
A successful response SHOULD be 200 (OK) if the response includes an entity describing the status, 202 (Accepted) if the action has not yet been enacted, or 204 (No Content) if the action has been enacted but the response does not include an entity.
Delete an address with an ID of 1:
DELETE /addresses/1
urlRequestInstance.httpMethod = "DELETE"
Here are nice tutorial references for you:
Understanding REST
REST Methods
What is the usefulness of PUT and DELETE HTTP request methods?
Now you can try a sample code, answered by Sh_Khan
My iOS application allows a user to submit a complaint to an online REST API with the following parameters:
Data Fields: such as name, phone number, ...
Voice: recorded from microphone
Image/Video: selected from photo gallery
1- how can i do that with swift?
2- how to get back an ID field from the server after submission?
3- how to manage an upload progress for the voice and media files?
Regards
After few weeks working hardly on it, here is my experience using Swift 3.1 which is run smoothly:
//use POSTMAN plugin in Chrome browser to get the read header for your API (optional):
let headers = [
"cache-control": "no-cache",
"postman-token": "00000000-1111-2222-3333-444444444"]
//this is the important part:
let strQuery: String = "mobileNo=" + txtMobileNB.text! + "&fullname=" + txtName.text!
let request = try? NSMutableURLRequest(url: NSURL(string: "http://service.website.com/apiname/?" + strQuery)! as URL,
cachePolicy: .useProtocolCachePolicy,
timeoutInterval: 10.0)
request?.httpMethod = "POST"
request?.allHTTPHeaderFields = headers
if request != nil {
let session = URLSession.shared
let dataTask = session.dataTask(with: request! as URLRequest) {data,response,error in
if let content = data
{
let responseData = String(data: content, encoding: String.Encoding.utf8)
//feedback from server:
print(responseData)
//call success function:
self.showDone()
} else {
//call error function:
self.showWrong()
}
}
dataTask.resume()
} else {
//call error function:
self.showWrong()
}
Regarding the other part "how to upload", i've found this framework is a good one (called rebekka) to start your upload project through iOS apps.
hope this helps someone :)
I'm having problems when trying to do Wishlist Member authentication from an iOS Swift application. The goal is to retrieve the current users email address. I’ve tried to interpret this info: http://codex.wishlistproducts.com/tutorial-authenticating-with-the-wishlist-member-api-from-a-non-php-application-ios-android-netetc/, but keep getting "success" :0, "ERROR_CODE" :65537, "ERROR" : "Access denied - Invalid authentication”. First step works, i.e. I’m able to get the “lock” cookie. I’m using SwiftHash for MD5. This is what I'm doing:
1) Run auth command in order to get the “lock” cookie.
http://content.xxxxxxxx.com/?/wlmapi/2.0/json/auth
This works fine and I get a lock cookie.
2) Then I run the following request using the API key and the “lock” cookie
let lock = self.getWLMAPILock(). // retrieve lock cookie
let key = “xxxxxxxxxxxxxxxxxxxx” // key removed for security
let newString = “\(lock)\(key)” // concatenate the two strings
let newKey = MD5(newString). // create auth_key
let postString = ("key=\(newKey),support_emulation=1")
let postData = postString.data(using: String.Encoding.utf8, allowLossyConversion: true)
let request : NSMutableURLRequest = NSMutableURLRequest(url: URL(string: “http://content.xxxxxxxx.com/?/wlmapi/2.0/json/auth")!)
request.httpMethod = “POST"
request.httpBody = postData
otiWebview.loadRequest((request as NSMutableURLRequest) as URLRequest)
This generates an error: "success" :0, "ERROR_CODE" :65537, "ERROR" : "Access denied - Invalid authentication"
3) Run request with url:
http://content.xxxxxxxx.com/?/wlmapi/2.0/json/members
Not run yet.
Solved it! The above scheme is basically correct, just had to add
let newKey = MD5(newString).lowercased()
I am working on get data from client server(ratin24 API). The API basically work after Authentication means I have one certificate and I was authenticate it with NSURLSession "didReceiveChallenge" delegate method. Everything is working fine but now issue is that I Got only header parts as a response not BOTY. so how to get actual data from there. I Pass XML Parameter in request body and the response should be XML but Got only header so please help me how to get BODY data in this situation.
let xmlString = "<?xml version='1.0' encoding='ISO-8859-1'?><TICKETANYWHERE><COUPON VER='1.0'><TEMPLATELIST /></COUPON></TICKETANYWHERE>"
let xmlData = xmlString.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)
let request = NSMutableURLRequest(URL: NSURL(string: "My URL")!)
request.HTTPMethod = "POST"
request.HTTPBody = xmlData
request.addValue("text/html; charset=ISO-8859-1", forHTTPHeaderField: "Content-Type")
struct SessionProperties {
static let identifier : String! = "url_session_background_download"
}
let configuration = NSURLSessionConfiguration.defaultSessionConfiguration()
let backgroundSession = NSURLSession(configuration: configuration, delegate:self as? NSURLSessionDelegate, delegateQueue: NSOperationQueue.mainQueue())
let downloadTask = backgroundSession.downloadTaskWithRequest(request){ (data, response, error) -> Void in
let httpResponse = response as! NSHTTPURLResponse
let statusCode = httpResponse.statusCode
if (statusCode == 200) {
print("Everyone is fine, file downloaded successfully.")
}
}
downloadTask.resume()
Response Data (only Header) body ? :
status code: 200, headers {
Connection = close;
"Content-Length" = 23113;
"Content-Type" = "text/html; charset=ISO-8859-1";
Date = "Mon, 27 Jun 2016 11:36:12 GMT";
Server = "Apache/2.2.15 (CentOS)";
}
The response object isn't supposed to contain the body data. An NSURLResponse object contains only metadata, such as the status code and headers. The actual body data should be in the NSData object for a data task, or in the provided file for a download task.
Note that for a download task the first parameter is an NSURL, not an NSData object. That NSURL contains the location of a file on disk from which you must immediately read the response data in your completion handler or move the file to a permanent location.