How to convert a JSON string to a dictionary?

Question

I want to make one function in my swift project that converts String to Dictionary json format but I got one error:

Cannot convert expression\'s type

Answer 1

Swift 4

extension String {
    func convertToDictionary() -> [String: Any]? {
        if let data = self.data(using: .utf8) {
            do {
                return try JSONSerialization.jsonObject(with: data, options: []) as? [String: Any]
            } catch {
                print(error.localizedDescription)
            }
        }
        return nil
    }
}