HTTP Authentication request with Campaign Monitor in Swift - json

Question

I am trying to post user data to Campaign Monitor when they sign up in my app. Can anyone help me add the authorisation to the request. I currently get this error:
Optional("{\"Code\":50,\"Message\":\"Must supply a valid HTTP Basic
Authorization header\"}")
my code:
let parameters = [ "FirstName1": "test",
"SecondName": "test",
"email": "test#test.com"
]
let clientID = "52bb93ac4d9a3f261abcda0123456789"
let url = URL(string: "https://api.createsend.com/api/v3.2/clients.json")!
var request = URLRequest(url: url)
request.httpMethod = "Post"
do {
request.httpBody = try JSONSerialization.data(withJSONObject: parameters, options: .prettyPrinted)
} catch let error {
print(error.localizedDescription)
}
// add the API Key to the request / security
request.setValue(clientID, forHTTPHeaderField: "username") // IS THIS RIGHT??
// THiS WAS HOW I CREATED CORRECT AUTHORIZATION
let APIKey = "0069b38c27b3e44de0234567891011"
let listID = "5e61fde130969d561dc0234567891011"
let url = URL(string: "https://api.createsend.com/api/v3.2/subscribers/\(listID).json")!
var request = URLRequest(url: url)
request.httpMethod = "POST"
// add the API Key to the request / security
let loginString = "\(APIKey)"
let loginData = loginString.data(using: String.Encoding.utf8)
let base64LoginString = loginData!.base64EncodedString()
request.setValue("Basic \(base64LoginString)", forHTTPHeaderField: "Authorization")
do {
request.httpBody = try JSONSerialization.data(withJSONObject: parameters, options: .prettyPrinted)
} catch let error {
print(error.localizedDescription)
}
// THEN CAN SET UP THE SESSION
let session = URLSession(configuration: .default)
let task = session.dataTask(with: request) {
(data, response, error) in
if error != nil {
print("Error is: \(String(describing: error))")
}
if let response = response {
let nsHTTPResponse = response as! HTTPURLResponse
let statusCode = nsHTTPResponse.statusCode
print("status code = \(statusCode)")
}
if let data = data {
let postResponse = String(data: data, encoding: .utf8)
print("responseString = \(String(describing: postResponse))")
}
}
task.resume()

Answer 1

In this line:
// add the API Key to the request / security
request.setValue(clientID, forHTTPHeaderField: "username") // IS THIS RIGHT??
It's not correct, even they told you why. You need a Basic Auth Header
For POST requests in Swift, generally you have to set the following:
request.setValue("Basic " + clientID, forHTTPHeaderField: "Authorization") // is clientID your access token?
Good luck