FTX: Margin lending/borrow rate history (#981)

* Adds lending rates/borrows to FTX and the command

* Movements, renames, rpc test

* Fleshing out rpc response

* Allows rpcserver to calculate offline (but not gctcli). Expands tests

* rn structs. add exchange_wrapper_issues support

* Adds a nice yearly rate

* Surprise yearly borrow rate!

* Rn+Mv to margin package. Fixes some serious whoopsies

* Adds average lend/borrow rates instead of sum

* rm oopsie whoopsie

* This is what the linter was having an issue with

* re-gen

* lintl

* niteroos

cmd/exchange_wrapper_issues/main.go

@@ -24,6 +24,7 @@ import (
 	"github.com/thrasher-corp/gocryptotrader/exchanges/asset"
 	"github.com/thrasher-corp/gocryptotrader/exchanges/deposit"
 	"github.com/thrasher-corp/gocryptotrader/exchanges/kline"
+	"github.com/thrasher-corp/gocryptotrader/exchanges/margin"
 	"github.com/thrasher-corp/gocryptotrader/exchanges/order"
 	"github.com/thrasher-corp/gocryptotrader/exchanges/orderbook"
 	"github.com/thrasher-corp/gocryptotrader/exchanges/ticker"
@@ -846,6 +847,31 @@ func testWrappers(e exchange.IBotExchange, base *exchange.Base, config *Config)
 			Error:      msg,
 			Response:   withdrawFiatFundsInternationalResponse,
 		})
+
+		marginRateHistoryRequest := &margin.RateHistoryRequest{
+			Exchange:           e.GetName(),
+			Asset:              assetTypes[i],
+			Currency:           p.Base,
+			StartDate:          time.Now().Add(-time.Hour * 24),
+			EndDate:            time.Now(),
+			GetPredictedRate:   true,
+			GetLendingPayments: true,
+			GetBorrowRates:     true,
+			GetBorrowCosts:     true,
+		}
+		marginRateHistoryResponse, err := e.GetMarginRatesHistory(context.TODO(), marginRateHistoryRequest)
+		msg = ""
+		if err != nil {
+			msg = err.Error()
+			responseContainer.ErrorCount++
+		}
+		responseContainer.EndpointResponses = append(responseContainer.EndpointResponses, EndpointResponse{
+			SentParams: jsonifyInterface([]interface{}{marginRateHistoryRequest}),
+			Function:   "GetMarginRatesHistory",
+			Error:      msg,
+			Response:   marginRateHistoryResponse,
+		})
+
 		response = append(response, responseContainer)
 	}
 	return response