swift 3 perform selector with argument

performSelectorWithArgument

//if you have a dictionary object passed in, and one element is the function name you can do the following
//inbound 'params' as [String: Any]

let funcName = String(format: "%@:", (params["function"] as? String)!) //note the ':' for single parameter method
let selector = NSSelectorFromString(funcName)
self.perform(selector, with: params)

func getSomeData(_ params: [String: Any]) {
  print(params)
}