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(Exchange Interface) Convert Fetch & Update orderbook/ticker methods to return pointers (#398)

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* moved order and ticker fetching to return a pointer

* return nil instead of empty struct

* fixed incorrect nil

* general cleanup
This commit is contained in:
Andrew
2019-12-17 15:54:09 +11:00
committed by Adrian Gallagher
parent 44aa1e306c
commit 75ac5ee791
42 changed files with 320 additions and 348 deletions
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16
exchanges/kraken/kraken_wrapper.go
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@@ -282,8 +282,8 @@ func (k *Kraken) UpdateTradablePairs(forceUpdate bool) error {
}
// UpdateTicker updates and returns the ticker for a currency pair
func (k *Kraken) UpdateTicker(p currency.Pair, assetType asset.Item) (ticker.Price, error) {
var tickerPrice ticker.Price
func (k *Kraken) UpdateTicker(p currency.Pair, assetType asset.Item) (*ticker.Price, error) {
tickerPrice := new(ticker.Price)
pairs := k.GetEnabledPairs(assetType)
pairsCollated, err := k.FormatExchangeCurrencies(pairs, assetType)
if err != nil {
@@ -307,7 +307,7 @@ func (k *Kraken) UpdateTicker(p currency.Pair, assetType asset.Item) (ticker.Pri
}
}
tickerPrice = ticker.Price{
tickerPrice = &ticker.Price{
Last: t.Last,
High: t.High,
Low: t.Low,
@@ -317,7 +317,7 @@ func (k *Kraken) UpdateTicker(p currency.Pair, assetType asset.Item) (ticker.Pri
Open: t.Open,
Pair: pairs[i],
}
err = ticker.ProcessTicker(k.Name, &tickerPrice, assetType)
err = ticker.ProcessTicker(k.Name, tickerPrice, assetType)
if err != nil {
log.Error(log.Ticker, err)
}
@@ -327,7 +327,7 @@ func (k *Kraken) UpdateTicker(p currency.Pair, assetType asset.Item) (ticker.Pri
}
// FetchTicker returns the ticker for a currency pair
func (k *Kraken) FetchTicker(p currency.Pair, assetType asset.Item) (ticker.Price, error) {
func (k *Kraken) FetchTicker(p currency.Pair, assetType asset.Item) (*ticker.Price, error) {
tickerNew, err := ticker.GetTicker(k.Name, p, assetType)
if err != nil {
return k.UpdateTicker(p, assetType)
@@ -336,7 +336,7 @@ func (k *Kraken) FetchTicker(p currency.Pair, assetType asset.Item) (ticker.Pric
}
// FetchOrderbook returns orderbook base on the currency pair
func (k *Kraken) FetchOrderbook(p currency.Pair, assetType asset.Item) (orderbook.Base, error) {
func (k *Kraken) FetchOrderbook(p currency.Pair, assetType asset.Item) (*orderbook.Base, error) {
ob, err := orderbook.Get(k.Name, p, assetType)
if err != nil {
return k.UpdateOrderbook(p, assetType)
@@ -345,8 +345,8 @@ func (k *Kraken) FetchOrderbook(p currency.Pair, assetType asset.Item) (orderboo
}
// UpdateOrderbook updates and returns the orderbook for a currency pair
func (k *Kraken) UpdateOrderbook(p currency.Pair, assetType asset.Item) (orderbook.Base, error) {
var orderBook orderbook.Base
func (k *Kraken) UpdateOrderbook(p currency.Pair, assetType asset.Item) (*orderbook.Base, error) {
orderBook := new(orderbook.Base)
orderbookNew, err := k.GetDepth(k.FormatExchangeCurrency(p,
assetType).String())
if err != nil {