gocryptotrader/cmd/exchange_template/wrapper_file.tmpl

{{define "wrapper"}}
package {{.Name}}

import (
	"sync"
	"time"

	"github.com/thrasher-corp/gocryptotrader/common"
	"github.com/thrasher-corp/gocryptotrader/config"
	"github.com/thrasher-corp/gocryptotrader/currency"
	exchange "github.com/thrasher-corp/gocryptotrader/exchanges"
	"github.com/thrasher-corp/gocryptotrader/exchanges/account"
	"github.com/thrasher-corp/gocryptotrader/exchanges/asset"
	"github.com/thrasher-corp/gocryptotrader/exchanges/kline"
	"github.com/thrasher-corp/gocryptotrader/exchanges/order"
	"github.com/thrasher-corp/gocryptotrader/exchanges/orderbook"
	"github.com/thrasher-corp/gocryptotrader/exchanges/protocol"
	"github.com/thrasher-corp/gocryptotrader/exchanges/request"
	"github.com/thrasher-corp/gocryptotrader/exchanges/ticker"
	"github.com/thrasher-corp/gocryptotrader/exchanges/websocket/wshandler"
	"github.com/thrasher-corp/gocryptotrader/log"
	"github.com/thrasher-corp/gocryptotrader/portfolio/withdraw"
)

// GetDefaultConfig returns a default exchange config
func ({{.Variable}} *{{.CapitalName}}) GetDefaultConfig() (*config.ExchangeConfig, error) {
	{{.Variable}}.SetDefaults()
	exchCfg := new(config.ExchangeConfig)
	exchCfg.Name = {{.Variable}}.Name
	exchCfg.HTTPTimeout = exchange.DefaultHTTPTimeout
	exchCfg.BaseCurrencies = {{.Variable}}.BaseCurrencies

	err := {{.Variable}}.SetupDefaults(exchCfg)
	if err != nil {
		return nil, err
	}

	if {{.Variable}}.Features.Supports.RESTCapabilities.AutoPairUpdates {
		err = {{.Variable}}.UpdateTradablePairs(true)
		if err != nil {
			return nil, err
		}
	}
	return exchCfg, nil
}

// SetDefaults sets the basic defaults for {{.CapitalName}}
func ({{.Variable}} *{{.CapitalName}}) SetDefaults() {
	{{.Variable}}.Name = "{{.CapitalName}}"
	{{.Variable}}.Enabled = true
	{{.Variable}}.Verbose = true
	{{.Variable}}.API.CredentialsValidator.RequiresKey = true
	{{.Variable}}.API.CredentialsValidator.RequiresSecret = true
	{{.Variable}}.CurrencyPairs = currency.PairsManager{
		AssetTypes: asset.Items{
			asset.Spot,
		},
		UseGlobalFormat: true,
		RequestFormat: &currency.PairFormat{
			Uppercase: true,
			Delimiter: "-",
		},
		ConfigFormat: &currency.PairFormat{
			Uppercase: true,
			Delimiter: "-",
		},
	}
	// Fill out the capabilities/features that the exchange supports
	{{.Variable}}.Features = exchange.Features{
		Supports: exchange.FeaturesSupported{
			{{ if .REST }} REST: true, {{ end }}
			{{ if .WS }} Websocket: true, {{ end }}
			RESTCapabilities: protocol.Features{
				TickerFetching: true,
				OrderbookFetching: true,
			},
			WebsocketCapabilities: protocol.Features{
				TickerFetching: true,
				OrderbookFetching: true,
			},
			WithdrawPermissions: exchange.AutoWithdrawCrypto | 
				exchange.AutoWithdrawFiat,
		},
		Enabled: exchange.FeaturesEnabled{
			AutoPairUpdates: true,
		},
	}
	// NOTE: SET THE EXCHANGES RATE LIMIT HERE
	{{.Variable}}.Requester = request.New({{.Variable}}.Name,
		common.NewHTTPClientWithTimeout(exchange.DefaultHTTPTimeout))

	{{.Variable}}.API.Endpoints.URLDefault = {{.Name}}APIURL
	{{.Variable}}.API.Endpoints.URL = {{.Variable}}.API.Endpoints.URLDefault
	{{.Variable}}.Websocket = wshandler.New()
	{{.Variable}}.WebsocketResponseMaxLimit = exchange.DefaultWebsocketResponseMaxLimit
	{{.Variable}}.WebsocketResponseCheckTimeout = exchange.DefaultWebsocketResponseCheckTimeout
	{{.Variable}}.WebsocketOrderbookBufferLimit = exchange.DefaultWebsocketOrderbookBufferLimit
}

// Setup takes in the supplied exchange configuration details and sets params
func ({{.Variable}} *{{.CapitalName}}) Setup(exch *config.ExchangeConfig) error {
	if !exch.Enabled {
		{{.Variable}}.SetEnabled(false)
		return nil
	}

	err := {{.Variable}}.SetupDefaults(exch)
	if err != nil {
		return err
	}

	// If websocket is supported, please fill out the following
	/*
	err = {{.Variable}}.Websocket.Setup(
		&wshandler.WebsocketSetup{
			Enabled:                          exch.Features.Enabled.Websocket,
			Verbose:                          exch.Verbose,
			AuthenticatedWebsocketAPISupport: exch.API.AuthenticatedWebsocketSupport,
			WebsocketTimeout:                 exch.WebsocketTrafficTimeout,
			DefaultURL:                       {{.Name}}WSURL,
			ExchangeName:                     exch.Name,
			RunningURL:                       exch.API.Endpoints.WebsocketURL,
			Connector:                        {{.Variable}}.WsConnect,
			Subscriber:                       {{.Variable}}.Subscribe,
			UnSubscriber:                     {{.Variable}}.Unsubscribe,
			Features:                         &{{.Variable}}.Features.Supports.WebsocketCapabilities,
		})
	if err != nil {
		return err
	}

	{{.Variable}}.WebsocketConn = &wshandler.WebsocketConnection{
		ExchangeName:         {{.Variable}}.Name,
		URL:                  {{.Variable}}.Websocket.GetWebsocketURL(),
		ProxyURL:             {{.Variable}}.Websocket.GetProxyAddress(),
		Verbose:              {{.Variable}}.Verbose,
		ResponseCheckTimeout: exch.WebsocketResponseCheckTimeout,
		ResponseMaxLimit:     exch.WebsocketResponseMaxLimit,
	}

	// NOTE: PLEASE ENSURE YOU SET THE ORDERBOOK BUFFER SETTINGS CORRECTLY
	{{.Variable}}.Websocket.Orderbook.Setup(
		exch.WebsocketOrderbookBufferLimit,
		true,
		true,
		false,
		false,
		exch.Name)
	*/
	return nil
}

// Start starts the {{.CapitalName}} go routine
func ({{.Variable}} *{{.CapitalName}}) Start(wg *sync.WaitGroup) {
	wg.Add(1)
	go func() {
		{{.Variable}}.Run()
		wg.Done()
	}()
}

// Run implements the {{.CapitalName}} wrapper
func ({{.Variable}} *{{.CapitalName}}) Run() {
	if {{.Variable}}.Verbose {
	{{ if .WS }} log.Debugf(log.ExchangeSys,
			"%s Websocket: %s.",
			{{.Variable}}.Name,
			common.IsEnabled({{.Variable}}.Websocket.IsEnabled())) {{ end }}
		{{.Variable}}.PrintEnabledPairs()
	}

	if !{{.Variable}}.GetEnabledFeatures().AutoPairUpdates {
		return
	}

	err := {{.Variable}}.UpdateTradablePairs(false)
	if err != nil {
		log.Errorf(log.ExchangeSys,
			"%s failed to update tradable pairs. Err: %s",
			{{.Variable}}.Name,
			err)
	}
}

// FetchTradablePairs returns a list of the exchanges tradable pairs
func ({{.Variable}} *{{.CapitalName}}) FetchTradablePairs(asset asset.Item) ([]string, error) {
	// Implement fetching the exchange available pairs if supported
	return nil, nil
}

// UpdateTradablePairs updates the exchanges available pairs and stores
// them in the exchanges config
func ({{.Variable}} *{{.CapitalName}}) UpdateTradablePairs(forceUpdate bool) error {
	pairs, err := {{.Variable}}.FetchTradablePairs(asset.Spot)
	if err != nil {
		return err
	}
	return {{.Variable}}.UpdatePairs(currency.NewPairsFromStrings(pairs), 
		asset.Spot, false, forceUpdate)
}


// UpdateTicker updates and returns the ticker for a currency pair
func ({{.Variable}} *{{.CapitalName}}) UpdateTicker(p currency.Pair, assetType asset.Item) (*ticker.Price, error) {
  	// NOTE: EXAMPLE FOR GETTING TICKER PRICE
	/*
	tickerPrice := new(ticker.Price)
	tick, err := {{.Variable}}.GetTicker(p.String())
	if err != nil {
		return tickerPrice, err
	}
	tickerPrice = &ticker.Price{
		High:  tick.High,
		Low:   tick.Low,
		Bid:   tick.Bid,
		Ask:   tick.Ask,
		Open:  tick.Open,
		Close: tick.Close,
		Pair:  p,
	}
	err = ticker.ProcessTicker({{.Variable}}.Name, tickerPrice, assetType)
	if err != nil {
		return tickerPrice, err
	}
	*/
	return ticker.GetTicker({{.Variable}}.Name, p, assetType)
}

// FetchTicker returns the ticker for a currency pair
func ({{.Variable}} *{{.CapitalName}}) FetchTicker(p currency.Pair, assetType asset.Item) (*ticker.Price, error) {
	tickerNew, err := ticker.GetTicker({{.Variable}}.Name, p, assetType)
	if err != nil {
		return {{.Variable}}.UpdateTicker(p, assetType)
	}
	return tickerNew, nil
}

// FetchOrderbook returns orderbook base on the currency pair
func ({{.Variable}} *{{.CapitalName}}) FetchOrderbook(currency currency.Pair, assetType asset.Item) (*orderbook.Base, error) {
	ob, err := orderbook.Get({{.Variable}}.Name, currency, assetType)
	if err != nil {
		return {{.Variable}}.UpdateOrderbook(currency, assetType)
	}
	return ob, nil
}

// UpdateOrderbook updates and returns the orderbook for a currency pair
func ({{.Variable}} *{{.CapitalName}}) UpdateOrderbook(p currency.Pair, assetType asset.Item) (*orderbook.Base, error) {
	orderBook := new(orderbook.Base)
    // NOTE: UPDATE ORDERBOOK EXAMPLE
	/* 
	orderbookNew, err := {{.Variable}}.GetOrderBook(exchange.FormatExchangeCurrency({{.Variable}}.Name, p).String(), 1000)
	if err != nil {
		return orderBook, err
	}

	for x := range orderbookNew.Bids {
		orderBook.Bids = append(orderBook.Bids, orderbook.Item{
			Amount: orderbookNew.Bids[x].Quantity, 
			Price: orderbookNew.Bids[x].Price,
		})
	}

	for x := range orderbookNew.Asks {
		orderBook.Asks = append(orderBook.Asks, orderbook.Item{
			Amount: orderBook.Asks[x].Quantity,
			Price: orderBook.Asks[x].Price,
		})
	}
	*/

	
	orderBook.Pair = p
	orderBook.ExchangeName = {{.Variable}}.Name
	orderBook.AssetType = assetType

	err := orderBook.Process()
	if err != nil {
		return orderBook, err
	}

	return orderbook.Get({{.Variable}}.Name, p, assetType)
}

// UpdateAccountInfo retrieves balances for all enabled currencies
func ({{.Variable}} *{{.CapitalName}}) UpdateAccountInfo() (account.Holdings, error) {
	return account.Holdings{}, common.ErrNotYetImplemented
}

// FetchAccountInfo retrieves balances for all enabled currencies
func ({{.Variable}} *{{.CapitalName}}) FetchAccountInfo() (account.Holdings, error) {
	return account.Holdings{}, common.ErrNotYetImplemented
}

// GetFundingHistory returns funding history, deposits and
// withdrawals
func ({{.Variable}} *{{.CapitalName}}) GetFundingHistory() ([]exchange.FundHistory, error) {
	return nil, common.ErrNotYetImplemented
}

// GetExchangeHistory returns historic trade data within the timeframe provided.
func ({{.Variable}} *{{.CapitalName}}) GetExchangeHistory(p currency.Pair, assetType asset.Item, timestampStart, timestampEnd time.Time) ([]exchange.TradeHistory, error) {
	return nil, common.ErrNotYetImplemented
}

// SubmitOrder submits a new order
func ({{.Variable}} *{{.CapitalName}}) SubmitOrder(s *order.Submit) (order.SubmitResponse, error) {
	var submitOrderResponse order.SubmitResponse
	if err := s.Validate(); err != nil {
		return submitOrderResponse, err
	}
	return submitOrderResponse, common.ErrNotYetImplemented
}

// ModifyOrder will allow of changing orderbook placement and limit to
// market conversion
func ({{.Variable}} *{{.CapitalName}}) ModifyOrder(action *order.Modify) (string, error) {
	return "", common.ErrNotYetImplemented
}

// CancelOrder cancels an order by its corresponding ID number
func ({{.Variable}} *{{.CapitalName}}) CancelOrder(order *order.Cancel) error {
	return common.ErrNotYetImplemented
}

// CancelAllOrders cancels all orders associated with a currency pair
func ({{.Variable}} *{{.CapitalName}}) CancelAllOrders(orderCancellation *order.Cancel) (order.CancelAllResponse, error) {
	return order.CancelAllResponse{}, common.ErrNotYetImplemented
}

// GetOrderInfo returns information on a current open order
func ({{.Variable}} *{{.CapitalName}}) GetOrderInfo(orderID string) (order.Detail, error) {
	return order.Detail{}, common.ErrNotYetImplemented
}

// GetDepositAddress returns a deposit address for a specified currency
func ({{.Variable}} *{{.CapitalName}}) GetDepositAddress(cryptocurrency currency.Code, accountID string) (string, error) {
	return "", common.ErrNotYetImplemented
}

// WithdrawCryptocurrencyFunds returns a withdrawal ID when a withdrawal is
// submitted
func ({{.Variable}} *{{.CapitalName}}) WithdrawCryptocurrencyFunds(withdrawRequest *withdraw.Request) (*withdraw.ExchangeResponse, error) {
	return nil, common.ErrNotYetImplemented
}

// WithdrawFiatFunds returns a withdrawal ID when a withdrawal is
// submitted
func ({{.Variable}} *{{.CapitalName}}) WithdrawFiatFunds(withdrawRequest *withdraw.Request) (*withdraw.ExchangeResponse, error) {
	return nil, common.ErrNotYetImplemented
}

// WithdrawFiatFundsToInternationalBank returns a withdrawal ID when a withdrawal is
// submitted
func ({{.Variable}} *{{.CapitalName}}) WithdrawFiatFundsToInternationalBank(withdrawRequest *withdraw.Request) (*withdraw.ExchangeResponse, error) {
	return nil, common.ErrNotYetImplemented
}

// GetWebsocket returns a pointer to the exchange websocket
func ({{.Variable}} *{{.CapitalName}}) GetWebsocket() (*wshandler.Websocket, error) {
	return nil, common.ErrNotYetImplemented
}

// GetActiveOrders retrieves any orders that are active/open
func ({{.Variable}} *{{.CapitalName}}) GetActiveOrders(getOrdersRequest *order.GetOrdersRequest) ([]order.Detail, error) {
	return nil, common.ErrNotYetImplemented
}

// GetOrderHistory retrieves account order information
// Can Limit response to specific order status
func ({{.Variable}} *{{.CapitalName}}) GetOrderHistory(getOrdersRequest *order.GetOrdersRequest) ([]order.Detail, error) {
	return nil, common.ErrNotYetImplemented
}

// GetFeeByType returns an estimate of fee based on the type of transaction
func ({{.Variable}} *{{.CapitalName}}) GetFeeByType(feeBuilder *exchange.FeeBuilder) (float64, error) {
	return 0, common.ErrNotYetImplemented
}

// SubscribeToWebsocketChannels appends to ChannelsToSubscribe
// which lets websocket.manageSubscriptions handle subscribing
func ({{.Variable}} *{{.CapitalName}}) SubscribeToWebsocketChannels(channels []wshandler.WebsocketChannelSubscription) error {
	{{.Variable}}.Websocket.SubscribeToChannels(channels)
	return nil
}

// UnsubscribeToWebsocketChannels removes from ChannelsToSubscribe
// which lets websocket.manageSubscriptions handle unsubscribing
func ({{.Variable}} *{{.CapitalName}}) UnsubscribeToWebsocketChannels(channels []wshandler.WebsocketChannelSubscription) error {
	{{.Variable}}.Websocket.RemoveSubscribedChannels(channels)
	return nil
}

// GetSubscriptions returns a copied list of subscriptions
func ({{.Variable}} *{{.CapitalName}}) GetSubscriptions() ([]wshandler.WebsocketChannelSubscription, error) {
	return nil, common.ErrNotYetImplemented
}

// AuthenticateWebsocket sends an authentication message to the websocket
func ({{.Variable}} *{{.CapitalName}}) AuthenticateWebsocket() error {
	return common.ErrNotYetImplemented
}

// ValidateCredentials validates current credentials used for wrapper
func ({{.Variable}} *{{.CapitalName}}) ValidateCredentials() error {
	_, err := {{.Variable}}.UpdateAccountInfo()
	return {{.Variable}}.CheckTransientError(err)
}

// GetHistoricCandles returns candles between a time period for a set time interval
func ({{.Variable}} *{{.CapitalName}}) GetHistoricCandles(pair currency.Pair, a asset.Item, start, end time.Time, interval kline.Interval) (kline.Item, error) {
	return kline.Item{}, common.ErrNotYetImplemented
}

// GetHistoricCandlesExtended returns candles between a time period for a set time interval
func ({{.Variable}} *{{.CapitalName}}) GetHistoricCandlesExtended(pair currency.Pair, a asset.Item, start, end time.Time, interval kline.Interval) (kline.Item, error) {
	return kline.Item{}, common.ErrNotYetImplemented
}

{{end}}