Breaking News: Grepper is joining You.com. Read the official announcement!

swift create a method who can return result or throw an error

cedric06nice answered on June 9, 2020 Popularity 6/10 Helpfulness 5/10

answer swift create a method who can return result or throw an error

swift create a method who can return result or throw an error

Comment

class SecurityService {
  static func loginWith(email: String, password: String, callback: (error: NSError?, user: User?) -> Void) -> Void {

    let URL = ".."
    let params = [
      "email": email,
      "password": password
    ]

    HTTP.request(URL, method: "POST", params: params) { (error, result) in
      if let error = error {
        callback(error: error, user: nil)
      } else {
        guard let JSON = result else {
          let someDomain = "some_domain"
          let someCode = 100
          let someInfo = [NSLocalizedDescriptionKey: "No results were sent by the server."]

          let error = NSError(domain: someDomain, code: someCode, userInfo: someInfo)
          callback(error: error, user: nil)
          return
        }

        guard let name = JSON["name"] as? String, email = JSON["email"] as? String else {
          let someDomain = "some_domain"
          let someCode = 100
          let someInfo = [NSLocalizedDescriptionKey: "No user properties were sent by the server."]

          let error = NSError(domain: someDomain, code: someCode, userInfo: someInfo)
          callback(error: error, user: nil)
          return
        }

        let user = User(name: name, email: email)
        callback(error: nil, user: user)
      }
    }
  }
}

Popularity 6/10 Helpfulness 5/10 Language swift

Source: stackoverflow.com

Tags: return swift throw

Link to this answer
Share Copy Link

Contributed on Jun 09 2020

cedric06nice

0 Answers Avg Quality 2/10

swift create a method who can return result or throw an error

Contents

More Related Answers

swift create a method who can return result or throw an error

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.