Error handling with statusCode - ios

Question

I'm trying to check whether the statusCode is equal to 2xx, however i'm not quite sure how to create this regex code for that type of error handling. Here is my code at the moment with a variable that retrieve the statusCode from header?
func SignUpWithPassword(email: String, password: String, delegate: CreateUserDelegate) {
testProvider.request(.SignIn(email, password), completion: { result in
switch result {
case let .Success(response):
let statusCode = response.statusCode
case let .Failure(error):
print(error)
let description = "Error! Please try again!"
delegate.CreateUser(didError: description)
}
})
delegate.CreateUser(didSucceed: SignUpUser(email: email, password: password))
}

Answer 1

I believe that NSHTTPURLResponse status code is an Int.
you should be able to use a ranged expression on this in your branching logic:
switch response.statusCode
{
case 200 ... 299 :
print("Success")
default:
print("Failure")
}

Answer 2

I'm using this enum:
enum HTTPStatusCodeGroup: Int {
case Info = 100
case Success = 200
case Redirect = 300
case Client = 400
case Server = 500
case Unknown = 999
init(code: Int) {
switch code {
case 100...199: self = .Info
case 200...299: self = .Success
case 300...399: self = .Redirect
case 400...499: self = .Client
case 500...599: self = .Server
default: self = .Unknown
}
}
}

Answer 3

In Swift, I have created the own Regax class.
// Custom Regex class
class Regex {
let internalExpression: NSRegularExpression
let pattern: String
init(_ pattern: String) {
self.pattern = pattern
do {
self.internalExpression = try NSRegularExpression(pattern: self.pattern, options: .CaseInsensitive)
} catch _ {
self.internalExpression = NSRegularExpression.init();
}
}
func test(input: String) -> Bool {
let matches = self.internalExpression.matchesInString(input, options: .WithTransparentBounds, range: NSMakeRange(0, input.characters.count)) as Array<NSTextCheckingResult>
return matches.count > 0
}
}
// Override operator
infix operator =~ {}
func =~ (input: NSInteger, pattern: String) -> Int {
return (Regex(pattern).test(String(input))) ? input : -1;
}
// Example add it viewDidLoad method
let statusCode = 200
switch statusCode
{
case statusCode =~ "2[0-9][0-9]" :
print("2[0-9][0-9] Success")
break
case statusCode =~ "3[0-9][0-9]" :
print("3[0-9][0-9] Success")
break
case statusCode =~ "4[0-9][0-9]" :
print("4[0-9][0-9] Success")
break
case statusCode =~ "5[0-9][0-9]" :
print("5[0-9][0-9] Success")
break
default:
print("Failure")
}