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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/exmo/exmo_wrapper.go
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@@ -175,8 +175,8 @@ func (e *EXMO) UpdateTradablePairs(forceUpdate bool) error {
}
// UpdateTicker updates and returns the ticker for a currency pair
func (e *EXMO) UpdateTicker(p currency.Pair, assetType asset.Item) (ticker.Price, error) {
var tickerPrice ticker.Price
func (e *EXMO) UpdateTicker(p currency.Pair, assetType asset.Item) (*ticker.Price, error) {
tickerPrice := new(ticker.Price)
result, err := e.GetTicker()
if err != nil {
return tickerPrice, err
@@ -190,7 +190,7 @@ func (e *EXMO) UpdateTicker(p currency.Pair, assetType asset.Item) (ticker.Price
if !strings.EqualFold(pairs[i].String(), j) {
continue
}
tickerPrice = ticker.Price{
tickerPrice = &ticker.Price{
Pair: pairs[i],
Last: result[j].Last,
Ask: result[j].Sell,
@@ -199,7 +199,7 @@ func (e *EXMO) UpdateTicker(p currency.Pair, assetType asset.Item) (ticker.Price
Low: result[j].Low,
Volume: result[j].Volume,
}
err = ticker.ProcessTicker(e.Name, &tickerPrice, assetType)
err = ticker.ProcessTicker(e.Name, tickerPrice, assetType)
if err != nil {
log.Error(log.Ticker, err)
}
@@ -209,7 +209,7 @@ func (e *EXMO) UpdateTicker(p currency.Pair, assetType asset.Item) (ticker.Price
}
// FetchTicker returns the ticker for a currency pair
func (e *EXMO) FetchTicker(p currency.Pair, assetType asset.Item) (ticker.Price, error) {
func (e *EXMO) FetchTicker(p currency.Pair, assetType asset.Item) (*ticker.Price, error) {
tick, err := ticker.GetTicker(e.Name, p, assetType)
if err != nil {
return e.UpdateTicker(p, assetType)
@@ -218,7 +218,7 @@ func (e *EXMO) FetchTicker(p currency.Pair, assetType asset.Item) (ticker.Price,
}
// FetchOrderbook returns the orderbook for a currency pair
func (e *EXMO) FetchOrderbook(p currency.Pair, assetType asset.Item) (orderbook.Base, error) {
func (e *EXMO) FetchOrderbook(p currency.Pair, assetType asset.Item) (*orderbook.Base, error) {
ob, err := orderbook.Get(e.Name, p, assetType)
if err != nil {
return e.UpdateOrderbook(p, assetType)
@@ -227,8 +227,8 @@ func (e *EXMO) FetchOrderbook(p currency.Pair, assetType asset.Item) (orderbook.
}
// UpdateOrderbook updates and returns the orderbook for a currency pair
func (e *EXMO) UpdateOrderbook(p currency.Pair, assetType asset.Item) (orderbook.Base, error) {
var orderBook orderbook.Base
func (e *EXMO) UpdateOrderbook(p currency.Pair, assetType asset.Item) (*orderbook.Base, error) {
orderBook := new(orderbook.Base)
pairsCollated, err := e.FormatExchangeCurrencies(e.GetEnabledPairs(assetType),
assetType)
if err != nil {