This is my first time trying to use Alamofire so please forgive me if this is a glaring oversight! I've read a lot of the other answers and have made a lot of tweaks, but nothing seems to work.
I am trying to do a really simple test where a parameter is passed from an iOS app to the server, which checks if it is equal to "Test" and if so, returns some json data back to the iOS app.
Although the debugPrint method outputs SUCCESS, the json data printed by the iOS app is always "Not set", implying that the parameters haven't actually been passed to the php file. I was wondering if someone could help me out!
At the moment I'm not too concerned about parsing the json, but am just trying to figure out the cause of the lost parameter! Thanks in advance.
Here is my PHP:
<?php
$name = $_POST["name"];
if (isset($name))
{
if($name == "Test"){
echo json_encode("Correct");
}
else
{
echo json_encode("Incorrect");
}
}else{
echo json_encode("Not set");
}
?>
And here is my swift code:
let url = "http://mywebsite.com/xxx.php"
let parameters: [String:String] = ["name":"Test"]
Alamofire.request(url, method: .post, parameters: parameters, encoding: URLEncoding.default).responseJSON{ response in
debugPrint(response)
if let JSON = response.result.value {
print("JSON: \(JSON)")
}
else {
print(response.result.error!)
}
}
Change URLEncoding.default to JSONEncoding.default.
Setting encoding to URLEncoding.default will pass params via query string.
(i.e. http://mywebsite.com/xxx.php?name=test).
Also change $POST_ with $_POST
Related
i have to send photo and json to server.
my json is :
{"anticorona":"Anti_Covid","time":"Time","navigateds":[{"collection_public_key":"Origin_Station.collection_public_key","station_public_key":"Origin_Station.public_key"},{"station_public_key":"Des_Station.public_key","collection_public_key":"Des_Station.collection_public_key"}],"seats":"Seats","date":"Date"}
how can i send this json with Alamofire.uploadmultipartFormData
i know i can use encoding: JSONEncoding.default in Alamofire.request but can in use JSONEncoding.default when use Alamofire.uploadmultipartFormData?
thanks
You seem to be new and it would be nice if you could perhaps add some code you have tried in future questions of yours. Anyways, as far as I can see this should be possible in the following way. I am assuming the key "navigateds" remains the same. Otherwise you could also check if the value (in the for-in-loop) is an array, too:
// set parameters for request
let antiCoronaParameters: Parameters = [
"anticorona" : "Anti_Covid",
"time":"Time",
"navigateds":[
["collection_public_key":"Origin_Station.collection_public_key", "station_public_key":"Origin_Station.public_key"],
["station_public_key":"Des_Station.public_key", "collection_public_key":"Des_Station.collection_public_key"]
],
"seats":"Seats",
"date":"Date"
]
let upload = AF.upload(multipartFormData: { (formData) in
// I would append file data here first
for (key, value) in antiCoronaParameters {
if key == "navigateds" {
do {
let arrayData = try JSONSerialization.data(withJSONObject: value, options: .prettyPrinted)
formData.append(arrayData, withName: key)
} catch {
print("could not append array, failed with error:", error)
}
} else if let string = value as? String, let stringData = string.data(using: String.Encoding.utf8, allowLossyConversion: false) {
formData.append(stringData, withName: key)
} else {
print("could not append some data in parameters")
}
}
}, to: "https://www.yourURLhere.com/link.php", method: .post).validate()
upload.responseString { (responseString) in
print(responseString)
}
This answer is based on this question. In the future, I would recommend trying lots of keywords relating to your question. Initially, searching for questions will consume more time but you will get the hang of it soon enough I'm sure. Just keep trying a little more next time maybe ;)
However, as you already mentioned there's another way, too, and I prepared it for you if you would like to check it out. You essentially mentioned it already and I'd always prefer it over the upload unless there's a very good reason:
// set parameters for request
let antiCoronaParameters: Parameters = [
"anticorona" : "Anti_Covid",
"time":"Time",
"navigateds":[
["collection_public_key":"Origin_Station.collection_public_key", "station_public_key":"Origin_Station.public_key"],
["station_public_key":"Des_Station.public_key", "collection_public_key":"Des_Station.collection_public_key"]
],
"seats":"Seats",
"date":"Date"
]
// request with json encoded parameters (e.g. sending to php)
let antiCoronaRequest = AF.request("https://www.yourURLhere.com/link.php", method: .post, parameters: antiCoronaParameters, encoding: JSONEncoding.default).validate()
antiCoronaRequest.responseString(completionHandler: { (response) in
print(response)
})
Hit me up if you have any questions.
We are facing the following networking error when the response is somehow large(14kb) on iOS 13.
[-1103] Error Domain=NSURLErrorDomain Code=-1103 "resource exceeds maximum size"
As we are using Alamofire, this problem is treated as error result which breaks our treatments of the results.
The strange thing is that if we use NSURLSession directly, though this error is still seen from logging, we don't actually receive it in the callback of
session.dataTask(with: request) { value, response, error in ... }
So the result can treated correctly.
This problem is never seen before. Anyone has got some idea on that ?
With the help of the Slack community, we find the answer is that
on iOS13, it is not allowed to add a body in GET request. To make it work again, we can either switch to a POST/PUT request or add body value via url parameters of the GET request.
Pass query parameters in GET request like the following:
let parameters: Parameters = [
"param": value
]
Alamofire.request(urlString, method: .get, parameters: parameters, encoding: URLEncoding.queryString)
I have face same issue and find out the solution.
You can't pass parameter in body while using GET.
Either use POST method if API support or pass it in URL like below.
AnyURL?Parameter=Value&Parameter=Value
Finally found the answer. For GET services I was trying to add an httpBody. Something like this:
do {
request.httpBody = try JSONSerialization.data(withJSONObject: parameters, options: .prettyPrinted)
} catch let error {
errorCompletion(error)
return
}
The solution was just to add an if to avoid that chunk of code if httpMethod is a GET. Seems like an iOS 13 new behavior and the error message given by Swift definitely not helps at all
Alamofire: You should try this!
Alamofire.request(urlString, method: .get, parameters: parameters, encoding: URLEncoding.queryString)
Just avoid the httpBody for the GET API request.
if requestType != .get{
request.httpBody = data
}
#OR
For GET request append parameter into URL instead of the HTTP body
Use the below extension to create a query parameter from the dictionary.
extension NSObject {
func buildQueryString(fromDictionary parameters: [String:String]) -> String {
var urlVars = [String]()
for (var k, var v) in parameters {
let characters = (CharacterSet.urlQueryAllowed as NSCharacterSet).mutableCopy() as! NSMutableCharacterSet
characters.removeCharacters(in: "&")
v = v.addingPercentEncoding(withAllowedCharacters: characters as CharacterSet)!
k = k.addingPercentEncoding(withAllowedCharacters: characters as CharacterSet)!
urlVars += [k + "=" + "\(v)"]
}
return (!urlVars.isEmpty ? "?" : "") + urlVars.joined(separator: "&")
}
}
I used default url encoding instead of default json encoding and it's worked for me.
Alamofire.request(url, method: .get, parameters: param, encoding: URLEncoding.default)
OR
If you using URLRequestConvertible
enum NetworkRouter: URLRequestConvertible {
case someCase(lang:String)
var method: HTTPMethod {
return .get
}
var parameters: Parameters? {
switch self {
case .someCase(let param):
return ["lang": param.lang]
default:
return nil
}
}
var url: URL {
switch self {
case .someCase(let param):
return URL(string: Constants.baseURL + Constants.endPoint)!
default:
return URL(string: Constants.baseURL)!
}
}
var encoding: ParameterEncoding {
return URLEncoding.default
}
func asURLRequest() throws -> URLRequest {
var urlRequest = URLRequest(url: url)
urlRequest.httpMethod = method.rawValue
return try encoding.encode(urlRequest, with: parameters)
}
}
I got that issue because i pass empty parameters in Alamofire when send get request. So, instead of sending empty parameters i simply replace it for nil.
My fix is I only set .parameters to nil, then everything works fine. Because in Swift it still initialize the value of .parameters.
self.request.parameters = nil
Here you might have missing the method of the URL request that you are passing to data task. You have to add POST/PUT/DELETE to the URL request method parameter like below.
var request: URLRequest = URLRequest(url: SOME_VALID_URL)
request.body = SOME_VALID_DATA_IN_BYTES
request.method = "post" --> You are missing this.
I only see this issue when I build with Xcode 11. If I revert back to Xcode 10.3 I do not have the same issue anymore. While not a forever fix, if you're needing to push out code you can revert until you have time to fix it.
Hello I am trying to use Alamofire for my HTTP requests. It is working with parameters that are not included any nested parameter. Normally, my url is working with following on the Google Chrome.
http://111.222.33.4:12345/my_server/dispatch?cmd=ext_getReferanceData&jp=%7b%22rfName%22:%22RF_ABC%22%7d&token=123
and the decoded version of above url is
http://111.222.33.4:12345/my_server/dispatch?cmd=ext_getReferanceData&jp={"rfName":"RF_ABC"}&token=123
It works fine when I paste it into any browser. However when I try to send following post request with Alamofire
let parameters3: [String: Any] = [
"cmd": "ext_getReferanceData",
"jp": [
"rfName": "RF_ABC"
],
"token": "123"
]
Alamofire.request("http://111.222.33.4:12345/my_server/dispatch", method: .get, parameters: parameters3, encoding: JSONEncoding.default).responseJSON { (response) in
}
It is returning
FAILURE:
responseSerializationFailed(Alamofire.AFError.ResponseSerializationFailureReason.inputDataNilOrZeroLength)
What could be the reason of it am I sending parameters wrong or is there anything that I am missing?
Edit: I also checked other questions about the error but the problem is about parameters that I am trying to send because there is " and { in the parameters but I could not send in the request.
have you considered printing the response being sent and confirming it that it's indeed the stuff you're trying to send?
You can do a couple of things to improve
Make the method .post
Try to use .validate() for added reliability
The way I do it is something like:
let submissionURL = URL(string: "https://blablabla.com/script.php")
sendAlamofireRequest(submissionURL: submissionURL!, parameters: parameters, chosenTrackerStr: chosenTrackerString) //function call
//function declaration
func sendAlamofireRequest(submissionURL: URL, parameters: Parameters, chosenTrackerStr: String){
Alamofire.request(submissionURL, method: .post, parameters: parameters, encoding: JSONEncoding.default).validate().responseString() { (response) in
//actual code goes here
}
}
Maybe try to play around with the alamofire request and check its documentation to see the suggested approach :)
I'm connecting to my server on localhost to fetch some data. The data returned to this request is a JSON, on Postman the JSON is correctly shown, but when I'm playing with iOS, Alamofire returns me an error:
responseSerializationFailed(Alamofire.AFError.ResponseSerializationFailureReason.jsonSerializationFailed(Error
Domain=NSCocoaErrorDomain Code=3840 "Garbage at end."
UserInfo={NSDebugDescription=Garbage at end.}))
The JSON in question is:
{
"name": "TestName",
"surname": "TestSurname"
}
The thing that I do not understand is that if I force my server to return the json in form of a string so something like
"{"name": "TestName after update","surname": "TestSurname"}"
Alamofire does not complain and parses it correctly. How is that? I thought that specifying the parameter responseJSON it would have worked the other way around.
Alamofire.request("http://192.168.1.4:8080/user/abcdf").validate().responseJSON { response in
switch response.result {
case .success:
// DO stuff
case .failure(let error):
print(error)
}
}
This means your API response string is not a proper JSON. Ensure your response is valid JSON. In my case (below), JSON String had some HTML characters which broke the JSON.
If you are using Alamofire, change .responseJSON to .responseString and verify the response structure is valid JSON.
Note : if you are using Postman, you may not notice the extra unwanted character in JSON response. You need to change the response type from "Pretty" to "Raw" to observe this.
I think you need to get the data so you should have it written like this I am not sure though
Alamofire.request("http://192.168.1.4:8080/user/abcdf",method:.get).responseJSON {
response in
if response.result.isSuccess {
//do stuff
}
else {
// do other stuff
}
}
I have a problem I want to handle a JSON Response with Alamofire in Swift
So I found this answer on Stackoverflow unfortunately this post is a few days older.
My question is how can I receive the data from Alamofire on first button press (without swiftyJSON).
I hope someone could help me.
This is the link I found on Stackoverflow.
Handle JSON Response with Alamofire in Swift
this is a small example.
This is what the JSON returns if it fails json_file.json
{ "transaction":"error" }
This is what the JSON returns if its success json_file.json
{ "transaction":"success" }
this is the code , you must add your own URL that will return any of those json responses. (example only)
Alamofire.request(.GET, "http://myjsonexamplewebsite.com/json_file.json", parameters:nil)
.responseJSON { (_, _, JSON, _) in
//println(JSON)
var response = JSON as NSDictionary
var transaction = response.objectForKey("transaction") as String
if transaction == "success" {
NSLog("JSON response was successfull")
}
else {
NSLog("JSON response had an Error")
}
}