Swift 4 URLsession with Authentication API Key - swift

Question

I am trying to make a POST Request for the Shippo REST API in Swift, but since it needs an API Authentication key I cannot figure out how to implement the key in the URLSession in Swift 4. As the Apple documentation puts it I cannot use urlsession.shared method.
The cURL command is:
curl https://api.goshippo.com/addresses/ \
-H "Authorization: ShippoToken shippo_test_Token_Here" \
-d name="Shawn Ippotle" \ -d company="Shippo" \
-d street1="215 Clayton St." \
-d street2="" \
-d city="San Francisco" \
-d state="CA" \
-d zip=94117 \
-d country="US" \
-d phone="[phone]" \
-d email="shippotle#goshippo.com"\
-d is_residential=True\
-d metadata="Customer ID 123456"

Answer 1

what about something like:
// preparing http request
let yourUrl = URL(string: "https://api.goshippo.com/addresses/")! // whatever is your url
let yourAuthorizationToken = "ShippoToken shippo_test_Token_Here" // whatever is your token
let yourPayload = Data() // whatever is your payload
var request = URLRequest(url:yourUrl)
request.httpMethod = "POST"
request.setValue(yourAuthorizationToken, forHTTPHeaderField: "Authorization")
request.httpBody = yourPayload
// executing the call
let session = URLSession(configuration: URLSessionConfiguration.default)
let task = session.dataTask(with: request, completionHandler: {data, response, error -> Void in
// your stuff here
})
task.resume()

Answer 2

Here it is using Alamofire. I hope this helps. I have tested it and it works.
func mainRequest(){
var headers: HTTPHeaders = [
"content-type": "application/json"
]
let credentials = "shippo_test_8dc780c66d5dae1c42868596c0b359ba89108df9"
headers["Authorization"] = "ShippoToken \(credentials)"
var parameters:Parameters = [String : Any]()
parameters["name"] = "Shawn Ippotle"
parameters["company"] = "Shippo"
parameters["street1"] = "215 Clayton St."
parameters["street2"] = ""
parameters["city"] = "San Francisco"
parameters["state"] = "CA"
parameters["zip"] = "94117"
parameters["phone"] = "[phone]"
parameters["country"] = "US"
parameters["email"] = "shippotle#goshippo.com"
parameters["is_residential"] = "True"
parameters["metadata"] = "Customer ID 123456"
let url = "https://api.goshippo.com/addresses"
Alamofire.request(url, method: .post, parameters: parameters , encoding: JSONEncoding.default, headers: headers)
.responseJSON { (response) in
switch response.result {
case .success(let value):
let swiftyJson = JSON(value)
print ("return as JSON using swiftyJson is: \(swiftyJson)")
case .failure(let error):
print ("error: \(error)")
}
}
}