protected override void Execute(CodeActivityContext context) { var aPIKey = APIKey.Get(context); Fixer.SetApiKey(aPIKey); var inputAmount = InputAmount.Get(context); var inputCurrency = InputCurrency.Get(context); var outputCurrency = OutputCurrency.Get(context); double outputAmount = Fixer.Convert(inputCurrency, outputCurrency, inputAmount); OutputAmount.Set(context, outputAmount); }