I'm using Swift 5 and attempting to get an access token from an API I'm developing using asp.net MVC. With Postman I set my request to GET, pass in some information in the body, and I get back an access token.
In XCode when I try this it gives me the error: "GET method must not have a body."
My Code:
func GetToken(email: String, password: String) {
let dataToSend = [
"grant_type": "password",
"username": email,
"password": password
]
let newData = try! JSONSerialization.data(withJSONObject: dataToSend, options: [])
var request = URLRequest(url: getNewTokenURL)
request.httpMethod = "Get"
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.httpBody = newData
URLSession.shared.dataTask(with: request) { (data, response, error) in
guard let data = data else {return}
do {
let myData = try JSONDecoder().decode(TokenResponse.self, from: data)
self.userToken = myData.accessToken
}
catch {
}
}.resume()
}
How do I perform the GET request with the data I need to send to it?
GET requests don't have a body. Parameters in a GET request are passed along with it's url as query parameters.
let url = URL(string: "https://www.example.com/getExample?sampleParam=sampleValue&anotherParam=anotherValue")
Edit: Also you need to give method in all caps. Since GET is the default you didn't have an issue.
Also if you are sure that the data is being passed as JSON then the method should be a POST method for that you just need to set the method of the request to POST as follows:
request.method = "POST"
Note: It's case sensitive.
Related
I need a way to set the headers of the dart http Request object to application/JSON.
I want to build a Request object to send to my backend API. I set the body to my JSON object, but when it gets sent, it defaults the headers to text/html instead of application/json.
I have tried using the built-in method
http.post(url,dynamic body);
but unfortunately this method places the body in the parameters of the URL and I need it in the actual body of the request.
So instead I built an http Request object, and manually set the URL and body but like I said, it sets the headers to text/html.
I have read the docs for https://pub.dev/documentation/http/latest/http/Request-class.html, but unfortunately, I haven't found a way to set the headers.
postRequest(uri) async {
Uri url = Uri.tryParse("https://ptsv2.com/t/umt4a-1569012506/post");
http.Request request = new http.Request("post", url);
request.body = '{mediaItemID: 04b568fa, uri: https://www.google.com}';
var letsGo = await request.send();
print(letsGo.statusCode);
}
Much thanks for any possible solutions!
Ps. this is my first ask on Stack Overflow so I apologize if I made any errors in posting.
Solved!
postRequest(uri) async {
Uri url = Uri.tryParse("https://ptsv2.com/t/umt4a-1569012506/post");
http.Request request = new http.Request("post", url);
request.headers.clear();
request.headers.addAll({"content-type":"application/json; charset=utf-8"});
request.body = '{mediaItemID: 04b568fa, uri: https://www.google.com}';
var letsGo = await request.send();
print(letsGo.statusCode);
}
I was having some issues with the Request object default setting the encoding.
By manually specifying utf-8, the server I am contacting accepts it.
for the post or get any request you can Add Header like this -
var permAddUrl = 'your requested url';
var bodyParameters = {
'Email': email,
'MobileNo': mobileNumber,
};
await http.post(
requesturl,
headers: { 'Content-Type': 'application/x-www-form-urlencoded',
"Authorization":"$token",
},
body: bodyParameters,).then((response) {
var data = json.encode(response.body);
print(data);
setState(() {
if(response.statusCode == 200){
//var statesList = data['data'];
UtilAction.showSnackBar(context, " Details Submitted Successfully");
}
});
});
I'm trying to make a demo app with flutter and trying to fetch products from a demo magento site.
This is my code:
Future<List<Product>> fetchProducts() async {
final params = <String, String>{
'searchCriteria[filter_groups][0][filters][0][condition_type]': 'in',
'searchCriteria[filter_groups][0][filters][0][field]': 'type_id',
'searchCriteria[pageSize]': '20',
'searchCriteria[filter_groups][0][filters][0][value]': 'simple,configurable,bundle',
'searchCriteria[currentPage]': '1',
'searchCriteria[sortOrders][0][field]': 'created_at',
'searchCriteria[sortOrders][0][direction]': 'DESC'
};
var uri = Uri.parse('https://demo.com/rest/v1/default/products');
uri = uri.replace(queryParameters: params);
print(uri);
final response =
await http.get(uri, headers: {HttpHeaders.authorizationHeader: "Bearer qb7157owxy8a29ewgogroa6puwoafxxx"});
if (response.statusCode == 200) {
// If the call to the server was successful, parse the JSON.
final data = json.decode(response.body);
final products = data["items"] as List;
return products.map<Product>((json) => Product.fromJson(json)).toList();
} else {
// If that call was not successful, throw an error.
throw Exception('Failed to load post');
}
}
When I debugged, the response was 400 - Bad request. I guess that because the uri was encoded to include percentage characters as I printed as below:
So how can I disable encoding the uri?
Thank you, guys.
I believe you should replace:
var uri = Uri.parse('https://demo.com/rest/v1/default/products');
uri = uri.replace(queryParameters: params);
print(uri);
with:
var uri = Uri.https('demo.com', '/rest/v1/default/products', params);
more on this: Uri.https
more on: replace
example result:
regardless of this, if I try with your params, the library behaves normal and encodes the special characters. (see more here)
if we put the actual request in the browser to check the response:
https://demo.mage-mobile.com/rest/v1/default/products?searchCriteria[filter_groups][0][filters][0][condition_type]=in&searchCriteria[filter_groups][0][filters][0][field]=type_id&searchCriteria[pageSize]=20&searchCriteria[filter_groups][0][filters][0][value]=simple%2Cconfigurable%2Cbundle&searchCriteria[currentPage]=1&searchCriteria[sortOrders][0][field]=created_at&searchCriteria[sortOrders][0][direction]=DESC
we get the following response:
And this brings me to my initial suspicion: the API does not support this call.
Maybe you should also check this type of param from your code: 'searchCriteria[filter_groups][0][filters][0][condition_type]', it seems you are trying to acces some information from a collection but you actually writing a string...
try removing the quotes (' bla bla ') from these params id... also try to put the request direcly in the browser(or postman) to see it work.
About the encoding (changing [ to %5B) -- this is normal and it should happen.
I'm working on creating a Flutter application that works with LIFX. I'm trying to follow their instructions here, but I'm having issues adding a header to my HTTP GET request.
TestHttpGet() async {
var httpClient = new HttpClient();
var header = "Bearer $token"; //token hidden
var url = 'https://api.lifx.com/v1/lights/all/state';
String result;
try {
var request = await httpClient.getUrl(Uri.parse(url));
request.headers.set("Authorization", header);
var response = await request.close();
if (response.statusCode == HttpStatus.OK) {
var json = await response.transform(UTF8.decoder).join();
print(json);
var data = JSON.decode(json);
result = data['brightness'].toString();
} else {
result =
'Error getting response:\nHttp status ${response.statusCode}';
}
} catch (exception) {
result = 'Failed parsing response';
}
This returns with Error getting response: Http status 404. I've tried various ways of request.headers .set .add [HttpHeaders.Authorization] = "header" all return with a 404. Any advice would be appreciated.
You can pass a Map<String, String> to the http.get call as the headers parameter like this:
await httpClient.get(url, headers: {
'Authorization': 'Bearer $token',
});
In order to set headers you can't set the entire variable since it is set as final. What you need to do is set the value of the individual array items which are also known as the individual "headers" in this case.
For example :
http.Request request = http.Request('GET', uri);
request.headers['Authorization'] = 'Bearer $token';
I believe dart makes all the fields of a HttpHeader to lowercase.
https://github.com/flutter/flutter/issues/16665
The argument for that is because "Field names are case-insensitive". (otherwise it is not HTTP compliant)
https://www.rfc-editor.org/rfc/rfc2616#section-4.2
Let me know if you found a workaround for this.
I need to log in example.com/mobile/shared/default.aspx by using POST request
How do i get current ViewState and sending it after?
That is what i tried
(Alamofire)
func webRequest()
{
let parameters: Parameters = [
"name": "name",
"password": "password",
"enter": "Enter",
]
Alamofire.request("http://example.ru/mobile/shared/default.aspx", parameters: parameters).responseJSON { response in
print(response.request) // original URL request
print(response.response) // HTTP URL response
print(response.data) // server data
print(response.result) // result of response serialization
if let JSON = response.result.value {
print("JSON: \(JSON)")
}
}
}
I'm using Alamofire like this:
let Parameters = [
"name": "name",
"password": "password",
"enter": "Enter"]
var json : JSON = nil
Alamofire.request(URLString, method: method, parameters: Parameters)
.responseJSON { response in
switch response.result {
case .success(let data):
json = JSON(data)
print(json)
case .failure(let error):
print("Request failed with error: \(error)")
}
}
}
So after that you can parse your json like this for example:
if json != nil {
let token = json["token"].stringValue
}
But all of that depend of your server request params, and request response from your server.
Hope I helped you, Peace
I followed the Firebase's guide on how to authenticate with Github. https://firebase.google.com/docs/auth/web/github-auth
The return result from Firebase's signInWithRedirect method contains the user's displayName and email, etc. However, it doesn't seem to contain user's 'login' username which is the key for invoking most of Github's API calls.
I am sure there is a way to get it, but I just can't seem to find any documentation. Does anyone happen to know how to solve it?
I ended up using Github's API to get user's username with accessToken.
You should be able to get the user's GitHub username through a parameter called "username" (see more here: https://github.com/firebase/firebase-simple-login/blob/master/docs/v1/providers/github.md)
Note: firebase-simple-login was deprecated on October 3th, 2014
You can use get the authenticated user from this GitHub's api
Or if you use octokit javascript rest api client, you can do something like this
octokit = new Octokit({auth: userAccessToken })
octokit.users.getAuthenticated()
.then(result => {
console.log(result.data.login) // this is the username
})
Note: you'll get accessToken after GitHub <-> firebase login
Hope this is helpful!
You can get the username in additionalUserInfo:
const githubProvider = new firebaseClient.auth.GithubAuthProvider();
githubProvider.addScope('read:user');
githubProvider.setCustomParameters({
allow_signup: false,
});
firebaseClient.initializeApp(clientConfig);
async function submit() {
try {
const response = await firebaseClient
.auth()
.signInWithPopup(githubProvider);
console.log(response.additionalUserInfo);
} catch (error) {
alert(error);
}
}
You Can use email to do authorized requests insted username:
Username: mayGitHubEmail#mail.com
Password: accessToken
like this with Postman
body sent
Here is a sample using class func in Swift using Alamofire and SwiftyJSON pods:
import Alamofire
import SwiftyJSON
enum NetworkError: Error {
case url
case server
case auth
}
class GistServices {
class func makePostApiCall(toUrl path: String, withBody parameters: JSON, usingCredentials: Bool = false) -> Result<Data?, NetworkError> {
guard let url = URL(string: path) else {
return .failure(.url)
}
if let email = UserAuthSingleton.shared.get(), let password = UserAuthSingleton.shared.getUserToken() {
var result: Result<Data?, NetworkError>!
var request = AF.request(url, method: .post, parameters: parameters)
if(usingCredentials){
let credentialData = "\(email):\(password)".data(using: String.Encoding(rawValue: String.Encoding.utf8.rawValue))!
let base64Credentials = credentialData.base64EncodedString()
let headers = [HTTPHeader(name: "Authorization", value: "Basic \(base64Credentials)"),
HTTPHeader(name: "Accept", value: "application/json"),
HTTPHeader(name: "Content-Type", value: "application/json")]
request = AF.request(url, method: .post, parameters: parameters.dictionaryValue, encoder: JSONParameterEncoder.default, headers: HTTPHeaders(headers))
}
request
.validate(statusCode: 200..<300)
.validate(contentType: ["application/json"])
.response { (response) in
switch response.result {
case .failure(_):
result = .failure(.server)
case .success(let value):
result = .success(value)
}
}
return result
}
return .failure(.auth)
}
}