MoyaTargets.swift

///
/// All targets have the same base URL
///
let BaseURL = NSURL(string: "http://example.com/v1")!

///
/// First target handles user-related api endpoints
///
/// .Authentication needs to:
/// 1. Make the request to the path with the given credentials
/// 2. Get back an access token and store it somewhere
///
/// .Profile requires that access token to be set in the request headers, since it's an authenticated endpoint
/// but I can't seem to figure out how I can do this simply enough.
///
/// Do I need a wrapper class for MoyaProvider that keeps track of all my targets or something and then
/// passes the stored access tokens around to the endpoints and requests?
///
enum FirstTarget: MoyaTarget {
  case Authenticate(username: String, password: String)
  case Profile
  
  var baseURL: NSURL { return BaseURL }
  
  var path: String {
    switch self {
    case .Authenticate:
      return "auth"
    case .Profile:
      return "profile"
    }
  }

  var method: Moya.Method {
    switch self {
    case .Authenticate: return .POST
    case .Profile:      return .GET
    }
  }
  
  var parameters: [String: AnyObject]? {
    switch self {
    case .Authenticate(let username, let password):
      return ["username": username, "password": password]
    case .Profile:
      return nil
    }
  }
  
  var sampleData: NSData { return NSData() }
}

///
/// The second target handles photo related api calls, all calls require the before mentioned access token as they
/// are authenticated api endpoints.
///
/// In addition, the .Upload needs to construct a custom HTTPBody for the image data to be sent to the upload API.
///
/// All endpoints except .Authenticate need the access token in all targets.
///
enum SecondTarget: MoyaTarget {
  case Photos
  case Upload(NSData)
  
  var baseURL: NSURL { return BaseURL }
  
  var path: String {
    switch self {
    case .Photos: return "photos"
    case .Upload: return "photos/upload"
    }
  }
  
  var method: Moya.Method {
    switch self {
    case .Photos: return .GET
    case .Upload: return .POST
    }
  }
  
  var parameters: [String: AnyObject]? {
    return nil
  }
  
  var sampleData: NSData { return NSData() }
}