I want to add the JSON object in GET request with URL. Please refer below URL.
https://testdata.com/xyz/&form={"id":"12", "data": "3"}
I am getting nil while converting String to URL
let serviceUrl = URL(string: url)
Thanks in advance.
I was already tried below solution but unfortunately no luck.
JSONSerialization.data
converting to string with utf8
removed whitespaces if any
addingPercentEncoding with URL host allowed
It's not recommended, to send a request body with GET request. GET request means to fetch all the resources/content that this URL has to offer. If they are parsing the GET body on server side, it's against the semantics. But if you really need to do it. Use Almofire. Here's a Sample Code.
let parameters : [String : Any] = [
"id":"12",
"data":"3"
]
func getContent(parameters: [String: Any]) {
Alamofire.request("http://18.218.235.193:3000/user/securedtoken", method:
.get, parameters: parameters, encoding: JSONEncoding.default)
.responseObject {(response:
DataResponse<YOUR RESPONSE MODEL HERE>) in
let response = response.result.value
//Do Something (Success)
}
}
I recommend you to use Alamofire library. You can do what you want using following code snippet
Alamofire.request(.GET, "http://httpbin.org/get", parameters: ["form": ["id": 12, "data": 3]])
.response { request, response, data, error in
print(request)
print(response)
print(error)
}
This question already has answers here:
How to convert a JSON string to a dictionary?
(10 answers)
iOS - Parsing JSON Dictionary with NSJSONSerialization in Swift
(1 answer)
Closed 6 years ago.
i am developing an iOS app in Swift using Xcode. How can I get values of Json object from this HTTP response.I need values of inner message and status.
{"message":"success","statusCode":200,"data":{"message":"already logged in","status":0}}
Thank you in advance :)
First, let me recommend the best 3rd party API for REST calls (HTTP) which called Alamofire.
If you use the below Alamofire example:
Alamofire.request(.GET, "https://httpbin.org/get", parameters: ["foo": "bar"])
.responseJSON { response in
print(response.request) // original URL request
print(response.response) // URL response
print(response.data) // server data
print(response.result) // result of response serialization
// Parsing the JSON
if let JSON = response.result.value {
print("JSON: \(JSON)")
// The actual cast to Dictionary
let jsonDictionary = JSON as! Dictionary<String, AnyObject>
}
}
Basically jsonDictionary will be your JSON dictionary that the keys are String and the values are of type AnyObject (so you could cast to what ever you need) and now you can do the below calls:
let message = json["message"] as? String
Get that dictionary and
let objDict = yourResponseObject.valueForKey("Data") as! NSDictionary
if objDict.valueforkey("message").isequaltoString("already logged in")
{
User logged already
}
else
{
not logged
}
So I am trying to POST to my API on my iPhone app. When I POST I want to be able to return a struct that has data. How would I do that? So far I have
Alamofire.request(.POST, "API_URL", parameters)
Is there some way to store what the API gives back?
Try using this
Alamofire.request(.POST, "API_URL, parameters).responseJSON{ request, response, result in
print(result.value)
}
If you want to use the resulting JSON in an easy manner - I would suggest using SWIFTY JSON
Yes you can.If you are using the latest version of Alamofire.
Simply try this(If the returning data is in JSON)
let url1 = "http://yoururl.com"
let head = [ "Accept": "application/json;charset=UTF-8",
"Content-Type": "application/json;charset=UTF-8"] // Adding headers
let p = ["Email":"anything","Password": "123"] // Adding parameters if any
Alamofire.request(.POST,url1, parameters: p, encoding : .JSON, headers : head)
.responseJSON { response in
print(response.request) // original URL request
print(response.response) // URL response
print(response.data) // server data
print(response.result) // result of response serialization
}
Alamofire.request(.GET, "url").authenticate(user: "", password: "").responseJSON() {
(request, response, json, error) in
println(error)
println(json)
}
This is my request with Alamofire, for a certain request it sometime works, but sometimes i get:
Optional(Error Domain=NSCocoaErrorDomain Code=3840 "The operation couldn’t be completed. (Cocoa error 3840.)" (Invalid value around character 0.) UserInfo=0x78e74b80 {NSDebugDescription=Invalid value around character 0.})
I've read that this can be due to invalid JSON, but the response is a static json string that i have validated in JSON validator as valid. It does contain å ä ö characters and some HTML.
Why am i getting this error sometimes?
I also faced same issue. I tried responseString instead of responseJSON and it worked. I guess this is a bug in Alamofire with using it with django.
In my case , my server URL was incorrect. Check your server URL !!
I got same error while uploading image in multipart form in Alamofire as i was using
multipartFormData.appendBodyPart(data: image1Data, name: "file")
i fixed by replacing by
multipartFormData.appendBodyPart(data: image1Data, name: "file", fileName: "myImage.png", mimeType: "image/png")
Hope this help someone.
May this Help YOu
Alamofire.request(.GET, "YOUR_URL")
.validate()
.responseString { response in
print("Success: \(response.result.isSuccess)")
print("Response String: \(response.result.value)")
}
The same issue happened to me and it actually ended up being a server issue since the content type wasn't set.
Adding
.validate(contentType: ["application/json"])
To the request chain solved it for me
Alamofire.request(.GET, "url")
.validate(contentType: ["application/json"])
.authenticate(user: "", password: "")
.responseJSON() { response in
switch response.result {
case .Success:
print("It worked!")
print(response.result.value)
case .Failure(let error):
print(error)
}
}
I got the same error. But i found the solution for it.
NOTE 1: "It is not Alarmofire error", it's bcouse of server error.
NOTE 2: You don't need to change "responseJSON" to "responseString".
public func fetchDataFromServerUsingXWWWFormUrlencoded(parameter:NSDictionary, completionHandler: #escaping (_ result:NSDictionary) -> Void) -> Void {
let headers = ["Content-Type": "application/x-www-form-urlencoded"]
let completeURL = "http://the_complete_url_here"
Alamofire.request(completeURL, method: .post, parameters: (parameter as! Parameters), encoding: URLEncoding.default, headers: headers).responseJSON { response in
if let JSON = response.result.value {
print("JSON: \(JSON)") // your JSONResponse result
completionHandler(JSON as! NSDictionary)
}
else {
print(response.result.error!)
}
}
}
This is how I managed to resolve the Invalid 3840 Err.
The error log
responseSerializationFailed(Alamofire.AFError.ResponseSerializationFailureReason.jsonSerializationFailed(Error Domain=NSCocoaErrorDomain Code=3840 "Invalid value around character 0." UserInfo={NSDebugDescription=Invalid value around character 0.}))
It was with Encoding Type used in the Request, The Encoding Type used should be acceptedin your Server-Side.
In-order to know the Encoding I had to run through all the Encoding Types:
default/
methodDependent/
queryString/
httpBody
let headers: HTTPHeaders = [
"Authorization": "Info XXX",
"Accept": "application/json",
"Content-Type" :"application/json"
]
let parameters:Parameters = [
"items": [
"item1" : value,
"item2": value,
"item3" : value
]
]
Alamofire.request("URL",method: .post, parameters: parameters,encoding:URLEncoding.queryString, headers: headers).responseJSON { response in
debugPrint(response)
}
It also depends upon the response we are recieving use the appropriate
responseString
responseJSON
responseData
If the response is not a JSON & just string in response use responseString
Example: in-case of login/ create token API :
"20dsoqs0287349y4ka85u6f24gmr6pah"
responseString
I solved using this as header:
let header = ["Content-Type": "application/json",
"accept": "application/json"]
In my case, there was an extra / in the URL .
Maybe it is too late but I solved this problem in another way not mentioned here:
When you use .responseJSON(), you must set the response header with content-type = application/json, if not, it'll crash even if your body is a valid JSON. So, maybe your response header are empty or using another content-type.
Make sure your response header is set with content-type = application/json to .responseJSON() in Alamofire work properly.
Hey guys this is what I found to be my issue: I was calling Alamofire via a function to Authenticate Users: I used the function "Login User" With the parameters that would be called from the "body"(email: String, password: String) That would be passed
my errr was exactly:
optional(alamofire.aferror.responseserializationfailed(alamofire.aferror.responseserializationfailurereason.jsonserializationfailed(error domain=nscocoaerrordomain code=3840 "invalid value around character 0." userinfo={nsdebugdescription=invalid value around character 0
character 0 is the key here: meaning the the call for the "email" was not matching the parameters: See the code below
func loginUser(email: String, password: String, completed: #escaping downloadComplete) {
let lowerCasedEmail = email.lowercased()
let header = [
"Content-Type" : "application/json; charset=utf-8"
]
let body: [String: Any] = [
"email": lowerCasedEmail,
"password": password
]
Alamofire.request(LOGIN_USER, method: .post, parameters: body, encoding: JSONEncoding.default, headers: header).responseJSON { (response) in
if response.result.error == nil {
if let data = response.result.value as? Dictionary<String, AnyObject> {
if let email = data["user"] as? String {
self.userEmail = email
print(self.userEmail)
}
if let token = data["token"] as? String {
self.token_Key = token
print(self.token_Key)
}
"email" in function parameters must match the let "email" when parsing then it will work..I no longer got the error...And character 0 was the "email" in the "body" parameter for the Alamofire request:
Hope this helps
I was sending the improper type (String) to the server in my parameters (needed to be an Int).
Error was resolved after adding encoding: JSONEncoding.default with Alamofire.
Alamofire.request(urlString, method: .post, parameters:
parameters,encoding:
JSONEncoding.default, headers: nil).responseJSON {
response in
switch response.result {
case .success:
print(response)
break
case .failure(let error):
print(error)
}
}
The application I was working on this morning had the same error. I believed it to be a server side error since I was unable to upload a user image.
However, upon checking my custom API, I realized that after adding an SSL certificate to my website that I had not updated the api.swift URLs, the data was unable to post:
let HOME_URL = "http://sitename.io"
let BASE_URL = "http://sitename.io/api"
let UPLOAD_URL = "http://sitename.io/api/user/upload"
I changed the URL's to https://. Problem solved.
In my case I have to add this Key: "Accept":"application/json" to my header request.
Something like this:
let Auth_header: [String:String] = ["Accept":"application/json", "Content-Type" : "application/json", "Authorization":"Bearer MyToken"]
I hope that this can help someone.
I face same issue and problem is in params.
let params = [kService: service,
kUserPath: companyModal.directory_path,
kCompanyDomain: UserDefaults.companyDomain,
kImageObject: imageString,
kEntryArray: jsonString,
kUserToken: UserDefaults.authToken] as [String : Any]
companyModal.directory_path is url. it coerced from string to any which create issues at server side. To resolve this issue I have to give default value which make it string value.
let params = [kService: kGetSingleEntry,
kUserPath: companyModal.directory_path ?? "",
kCompanyDomain: UserDefaults.companyDomain,
kUserToken: UserDefaults.authToken,
kEntryId: id,
] as [String: Any]
Probably you have "/" at the end of your path. If it is not GET request, you shouldn't put "/" at the end, otherwise you'll get the error
I Changed mimeType from "mov" to "multipart/form-data".
Alamofire.upload(multipartFormData: { (multipartFormData) in
do {
let data = try Data(contentsOf: videoUrl, options: .mappedIfSafe)
let fileName = String(format: "ios-video_%#.mov ", profileID)
multipartFormData.append(data, withName: "video", fileName: fileName, mimeType: "multipart/form-data")
} catch {
completion("Error")
}
}, usingThreshold: .init(), to: url,
method: .put,
headers: header)
Worked for me.. :)
For my case:
let header = ["Authorization": "Bearer \(Authserices.instance.tokenid)"]
I forgot the space before \ (after Bearer)
In my case error was due to duplicate email. You can recheck your API on postman to see if response there is OK or not.
In my case, I tried using Postman to get API and this error come from backend.
I'm trying to use the Yoda API and send a request using the Alamofire Swift framework. I know that the API is correctly working, as I have tested the endpoint with my Mashape API key multiple times. I can also see that the requests are being sent (homepage of Mashape under my application). However my JSON response is always nil.
func handleRequest(words:String){
var saying = words.stringByReplacingOccurrencesOfString(" ", withString: "+");
saying = "?sentence=" + saying;
let url = NSURL(string: (baseURL+saying));
println(url);
var response:String;
Alamofire.Manager.sharedInstance.session.configuration.HTTPAdditionalHeaders = additionalHeaders;
Alamofire.request(.GET, url!).responseJSON { (_, _, JSON, _) in
println(JSON);
}
}
The words string can be "This is my first sentence" and it will automatically replace the spaces with "+" as per the API spec. Please Ignore the multiple println statements, they are just for debugging.
This is just proof of concept code, its purposely not doing much error checking and isn't pretty for that reason. If you have any suggestions I would appreciate them.
For some reason it's an issue I've too with the Alamofire request for JSON. It is the way I handle the JSON requests using Alamofire :
Alamofire.request(.GET, urlTo, parameters: nil, encoding: .URL).responseString(completionHandler: {
(request: NSURLRequest, response: NSHTTPURLResponse?, responseBody: String?, error: NSError?) -> Void in
// Convert the response to NSData to handle with SwiftyJSON
if let data = (responseBody as NSString).dataUsingEncoding(NSUTF8StringEncoding) {
let json = JSON(data: data)
println(json)
}
})
I strongly recommend you using SwiftyJSON to manage the JSON in a better and easy way, it's up to you.
I hope this help you.
Alamofire request have several method for handle response. Try to handle data response and convert it to String. Confirm that response JSON is normal.
Alamofire.request(.GET, url!).response { (_, _, data, error) in
let str = NSString(data: data, encoding: NSUTF8StringEncoding)
println(str)
println(error)
}
Also checkout error while parsing JSON data.