Data posting server gets error in swift 3? - ios

Question

Here i got a token number from api like as shown here "210" and it is saving using userdefaults but when i tried to retrieve data from the userdefaults then it is returning "\"210\"" like this why it is adding slashes and quotes can anyone help me how to resolve this ?
here is the code for posting key
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue("Bearer \(self.CustomerToken!)", forHTTPHeaderField: "Authorization")
print(self.CustomerToken!)
let task = URLSession.shared.dataTask(with: request) { data, response, error in
guard let data = data, error == nil else { // check for fundamental networking error
print("error=\(String(describing: error))")
return
}
if let httpStatus = response as? HTTPURLResponse, httpStatus.statusCode != 200 { // check for http errors
print("statusCode should be 200, but is \(httpStatus.statusCode)")
print("response = \(String(describing: response))")
}
let responseString = String(data: data, encoding: .utf8)
print("responseString = \(responseString!)")
let status = (response as! HTTPURLResponse).statusCode
self.keyStatusCode = status
print(responseString!)
self.customerCartIdNumber = responseString!
self.customerCartIdNumber = responseString!
UserDefaults.standard.set(self.customerCartIdNumber, forKey: "CustomerLoginNumber")
print(self.customerCartIdNumber!)
print(responseString!)
here is the code for getting key
let customerId = UserDefaults.standard.string(forKey: "CustomerLoginNumber")
self.customerCartId = customerId!
print(customerId!)
here is the code for posting
func customerAddToCartItemsDownloadJsonWithURl(cartApi: String){
let url = URL(string: cartApi)
var request = URLRequest(url: url! as URL)
request.httpMethod = "POST"
let cartNumber = customerCartId?.replacingOccurrences(of: "\\", with: "")
let parameters : [String: Any] = ["cartItem":
[
"quote_id": "\(customerCartId!)",
"sku": "\(itemCode!)",
"qty":"1"
]
]
print(customerCartId)
print(parameters)
print(cartNumber)
do {
request.httpBody = try JSONSerialization.data(withJSONObject: parameters, options: .prettyPrinted)
} catch let error {
print(error.localizedDescription)
}
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue("Bearer \(self.customerKeyToken!)", forHTTPHeaderField: "Authorization")
let task = URLSession.shared.dataTask(with: request) { data, response, error in
guard let data = data, error == nil else {
print("error=\(String(describing: error))")
return
}
if let httpStatus = response as? HTTPURLResponse, httpStatus.statusCode != 200 {
print("statusCode should be 200, but is \(httpStatus.statusCode)")
print("response = \(String(describing: response))")
}
let responseString = String(data: data, encoding: .utf8)
print("responseString = \(responseString!)")
}
task.resume()
}