Results

The returned data by the server.

A GTRest.Response object which contains server response data.

An error object describing potential errors.

A convenient method to convert raw fetched data to a custom type by decoding it using JSONDecoder.

JSONDecoder object used to decode data in this method can be configured in the decoderConfiguration handler. Keep it nil in case you don’t want to make any configuration to JSONDecoder instance.

In case decoding fails an exception is thrown by the method.

Example:

Consider the following struct:

struct User: Codable {
    var id: Int?
    var firstName: String?
    var lastName: String?
}

Also, the following server fetched data:

{
    "id": 325,
    "first_name": "Gabriel",
    "last_name": "Theodoropoulos"
}

Here’s how to convert fetched user data, using the decoderConfiguration to set the convertFromSnakeCase as the keyDecodingStrategy:

let rest = GTRest()
let url = URL(...)
// Additional configuration...

rest.makeRequest(toURL: url, withHttpMethod: .get) { (results) in
    do {
       if let user = try results.convertData(toType: User.self, decoderConfiguration: { (decoder) in
           decoder.keyDecodingStrategy = .convertFromSnakeCase
       }) {
           // User data has been successfully converted into a `User` object.
           print(user)
       }
    } catch {
       print(error.localizedDescription)
    }
}