Map exchange wrapper function "SubmitExchangeOrder" to exchange implementations (#211)

* Sets up Alphapoint and ANX wrappers to use exchange implementations of submit orders
Creates const types for orderType and orderSides

* Changes wrapper func SubmitExchangeOrder return type to string to account for GUID order ID responses

* Adds binance and bitfinex new order wrapper support. Fixes alphapoint order wrapper.

* Adds bitflyer type for exchange order. Adds bithumb and bitmex wrapper support for SubmitExchangeOrder

* Fixes bitmex typo. Adds bitstamp, bittrex, coinbasePro, coinut SubmitExchangeOrder wrapper support

* Maps exchange wrapper function 'SubmitExchangeOrder' to exchange methods for exmo, gateio, gemini, hitbtc, huobi, huobihadax and itbit

* Maps exchange wrapper function 'SubmitExchangeOrder' to exchange methods for kraken, lakebtc, liqui, okcoin, okex, poloniex, wex, yobit and zb

* Updates interface, fixes wrapper type mismatch and fixes tests from changed parameters

* Adds generic support for SubmitExchangeOrder for localbitcoins_wrapper

* Updates wrappers tests and submit order implementations for anx, binance, bitfinex, bitflyer (cannot test), bitmex, bitstamp

* Fixes bitstamp tests

* Adds tests for submitting orders with bittrex, btcmarkets, coinbasepro and coinut

* Adds tests for exmo, gatio, gemini and hitbtc
Makes adjustments where necessary

* Adds tests and updates order implementations for huobi, huobiHadax, itbit, kraken, lakebtc, liqui, okcoin, okex, poloniex, wex, yobit and zb. Not all have been verified due to exchange issues

* Fixes variable names and symbol usages

* Fixes HitBTC order API implementation

* Removes formatting code. Adds error handling for unsupported order types. Fixes typo

* Fixes missed replace for new ToString function. Removes unused functions

* Changes report of unknown withdrawal type with bitshift approximation.
Improved code cov

* Updates wrapper SubmitExchangeOrder return to use a fancy new SubmitOrderResponse struct type to clarify if an order submission is successful or not

exchanges/alphapoint/alphapoint.go

@@ -359,17 +359,26 @@ func (a *Alphapoint) WithdrawCoins(symbol, product, address string, amount float
 	return nil
 }
 
+func (a *Alphapoint) convertOrderTypeToOrderTypeNumber(orderType string) (orderTypeNumber int64) {
+	if orderType == exchange.Market.ToString() {
+		orderTypeNumber = 1
+	}
+
+	return orderTypeNumber
+}
+
 // CreateOrder creates a market or limit order
 // symbol - Instrument code (ex: “BTCUSD”)
 // side - “buy” or “sell”
 // orderType - “1” for market orders, “0” for limit orders
 // quantity - Quantity
 // price - Price in USD
-func (a *Alphapoint) CreateOrder(symbol, side string, orderType int, quantity, price float64) (int64, error) {
+func (a *Alphapoint) CreateOrder(symbol, side, orderType string, quantity, price float64) (int64, error) {
+	orderTypeNumber := a.convertOrderTypeToOrderTypeNumber(orderType)
 	request := make(map[string]interface{})
 	request["ins"] = symbol
 	request["side"] = side
-	request["orderType"] = orderType
+	request["orderType"] = orderTypeNumber
 	request["qty"] = strconv.FormatFloat(quantity, 'f', -1, 64)
 	request["px"] = strconv.FormatFloat(price, 'f', -1, 64)
 	response := Response{}

exchanges/alphapoint/alphapoint_test.go

@@ -411,7 +411,7 @@ func TestCreateOrder(t *testing.T) {
 		return
 	}
 
-	_, err := a.CreateOrder("", "", 1, 0.01, 0)
+	_, err := a.CreateOrder("", "", exchange.Market.ToString(), 0.01, 0)
 	if err == nil {
 		t.Error("Test Failed - GetUserInfo() error")
 	}

exchanges/alphapoint/alphapoint_wrapper.go

@@ -2,6 +2,7 @@ package alphapoint
 
 import (
 	"errors"
+	"fmt"
 
 	"github.com/thrasher-/gocryptotrader/currency/pair"
 	"github.com/thrasher-/gocryptotrader/exchanges"
@@ -105,9 +106,19 @@ func (a *Alphapoint) GetExchangeHistory(p pair.CurrencyPair, assetType string) (
 
 // SubmitExchangeOrder submits a new order and returns a true value when
 // successfully submitted
-func (a *Alphapoint) SubmitExchangeOrder(p pair.CurrencyPair, side exchange.OrderSide, orderType exchange.OrderType, amount, price float64, clientID string) (int64, error) {
-	//return a.CreateOrder(p.Pair().String(), side, orderType, amount, price)
-	return 0, errors.New("not yet implemented")
+func (a *Alphapoint) SubmitExchangeOrder(p pair.CurrencyPair, side exchange.OrderSide, orderType exchange.OrderType, amount, price float64, clientID string) (exchange.SubmitOrderResponse, error) {
+	var submitOrderResponse exchange.SubmitOrderResponse
+
+	response, err := a.CreateOrder(p.Pair().String(), side.ToString(), orderType.ToString(), amount, price)
+	if response > 0 {
+		submitOrderResponse.OrderID = fmt.Sprintf("%v", response)
+	}
+
+	if err == nil {
+		submitOrderResponse.IsOrderPlaced = true
+	}
+
+	return submitOrderResponse, err
 }
 
 // ModifyExchangeOrder will allow of changing orderbook placement and limit to