Api call to .net C sharp web api project fails in swift but works fine - swift

Question

I am using a asp.net back end with a login end point but no matter what I DO in the swift version of this code I get a 415 when I use it in .net and sharp the api works am not sure what am doing wrong here.
And yes I have enabled transport protocol but its not decoding the jwt token correctly for me in swift
Basically the end point returns the jet token used for accessing the api in an object
let jwtAccessToken: String = ""
let urlString = "http://url.com/login" *** hidden for security
purposes but is correct ****
func CallWebApi()
{
// create the url with URL
let url = URL(string: urlString)! // change server url accordingly
let parameters: [String: Any] = [ "username":
"user1#domain.com", "password": "pass1"]
var request = URLRequest(url: url)
request.setValue("application/x-www-form-urlencoded",
forHTTPHeaderField: "Content-Type")
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.httpMethod = "Post"
do {
request.httpBody = try
JSONSerialization.data(withJSONObject: parameters, options: .prettyPrinted)
} catch let error {
print(error.localizedDescription)
return
}
let task = URLSession.shared.dataTask(with: request) {
data, response, error in
guard
let data = data,
let response = response as? HTTPURLResponse,
error == nil
else {
// check for fundamental networking error
print("error", error ?? URLError(.badServerResponse))
return
}
guard (200 ... 299) ~= response.statusCode else {
// check for http errors
print("statusCode should be 2xx, but is \(response.statusCode)")
print("response = \(response)")
return
}
// do whatever you want with the `data`, e.g.:
do {
let responseObject = data
print(responseObject)
} catch {
print(error)
// parsing error
if let responseString = String(data: data, encoding: .utf8) {
print("responseString = \(responseString)")
} else {
print("unable to parse response as string")
}
}
}
task.resume()
}
MyModel is basically a string
import Foundation
class AuthenticationResponse: ObservableObject {
#Published var jwtToken: String
init(jwtToken: String) {
self.jwtToken = jwtToken
}
}
I think 20 years of c sharp in not helping and am doing things it way and not the swift way if someone could advice be great.
Also in csharp we were told its not great in keeping alive the http client as can degrade performance is this the same for swift and if any library's you can recommend makes the code a bit neater the api has swagger docs enabled.
Edit 3
Example response expected back
{
"id": "b181104e-ba3e-4dba-b124-4bb4a3873b17",
"firstName": "user1",
"lastName": "lastname",
"username": "user1lastname#domainname.com",
"playerId": 0,
"jwtToken": "token in is here",//hidden for security
"error": {
"eventName": null,
"errorMessage": null,
"errorDate": null,
"statusCode": null,
"json": null
},
"refreshToken": null
}
I typically send this to the end point from C sharp
{
"username": "user1#domain.com",
"password": "pass1"
}

Answer 1

What I found I had to do was this
let decoder = JSONDecoder()
let responseObject = try
decoder.decode(AuthenticationResponse.self, from: data)
print(responseObject)
And change my class to be off this
import Foundation
struct AuthenticationResponse: Codable {
var jwtToken: String
}
After I done that I got the expected string back but my question is how does one get this to run correctly its completing before I think I need await but also where is it best to stored the jwttoken?