Facebook.IOSFacebook.AppEventsLogPurchase C# (CSharp) Method

        public override void AppEventsLogPurchase(
            float logPurchase,
            string currency = "USD",
            Dictionary<string, object> parameters = null)
        {
            NativeDict dict = MarshallDict(parameters);
            if (string.IsNullOrEmpty(currency))
            {
                currency = "USD";
            }
            iosFBAppEventsLogPurchase(logPurchase, currency, dict.numEntries, dict.keys, dict.vals);
        }