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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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24
exchanges/okex/okex_wrapper.go
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@@ -308,19 +308,19 @@ func (o *OKEX) UpdateTradablePairs(forceUpdate bool) error {
}
// UpdateTicker updates and returns the ticker for a currency pair
func (o *OKEX) UpdateTicker(p currency.Pair, assetType asset.Item) (ticker.Price, error) {
var tickerData ticker.Price
func (o *OKEX) UpdateTicker(p currency.Pair, assetType asset.Item) (*ticker.Price, error) {
tickerPrice := new(ticker.Price)
switch assetType {
case asset.Spot:
resp, err := o.GetSpotAllTokenPairsInformation()
if err != nil {
return tickerData, err
return tickerPrice, err
}
for j := range resp {
if !o.GetEnabledPairs(assetType).Contains(resp[j].InstrumentID, true) {
continue
}
tickerData = ticker.Price{
tickerPrice = &ticker.Price{
Last: resp[j].Last,
High: resp[j].High24h,
Low: resp[j].Low24h,
@@ -332,7 +332,7 @@ func (o *OKEX) UpdateTicker(p currency.Pair, assetType asset.Item) (ticker.Price
Pair: resp[j].InstrumentID,
LastUpdated: resp[j].Timestamp,
}
err = ticker.ProcessTicker(o.Name, &tickerData, assetType)
err = ticker.ProcessTicker(o.Name, tickerPrice, assetType)
if err != nil {
log.Error(log.Ticker, err)
}
@@ -341,7 +341,7 @@ func (o *OKEX) UpdateTicker(p currency.Pair, assetType asset.Item) (ticker.Price
case asset.PerpetualSwap:
resp, err := o.GetAllSwapTokensInformation()
if err != nil {
return tickerData, err
return nil, err
}
for j := range resp {
@@ -352,7 +352,7 @@ func (o *OKEX) UpdateTicker(p currency.Pair, assetType asset.Item) (ticker.Price
if !o.GetEnabledPairs(assetType).Contains(nC, true) {
continue
}
tickerData = ticker.Price{
tickerPrice = &ticker.Price{
Last: resp[j].Last,
High: resp[j].High24H,
Low: resp[j].Low24H,
@@ -362,7 +362,7 @@ func (o *OKEX) UpdateTicker(p currency.Pair, assetType asset.Item) (ticker.Price
Pair: nC,
LastUpdated: resp[j].Timestamp,
}
err = ticker.ProcessTicker(o.Name, &tickerData, assetType)
err = ticker.ProcessTicker(o.Name, tickerPrice, assetType)
if err != nil {
log.Error(log.Ticker, err)
}
@@ -371,7 +371,7 @@ func (o *OKEX) UpdateTicker(p currency.Pair, assetType asset.Item) (ticker.Price
case asset.Futures:
resp, err := o.GetAllFuturesTokenInfo()
if err != nil {
return tickerData, err
return nil, err
}
for j := range resp {
@@ -382,7 +382,7 @@ func (o *OKEX) UpdateTicker(p currency.Pair, assetType asset.Item) (ticker.Price
if !o.GetEnabledPairs(assetType).Contains(nC, true) {
continue
}
tickerData = ticker.Price{
tickerPrice = &ticker.Price{
Last: resp[j].Last,
High: resp[j].High24h,
Low: resp[j].Low24h,
@@ -392,7 +392,7 @@ func (o *OKEX) UpdateTicker(p currency.Pair, assetType asset.Item) (ticker.Price
Pair: nC,
LastUpdated: resp[j].Timestamp,
}
err = ticker.ProcessTicker(o.Name, &tickerData, assetType)
err = ticker.ProcessTicker(o.Name, tickerPrice, assetType)
if err != nil {
log.Error(log.Ticker, err)
}
@@ -403,7 +403,7 @@ func (o *OKEX) UpdateTicker(p currency.Pair, assetType asset.Item) (ticker.Price
}
// FetchTicker returns the ticker for a currency pair
func (o *OKEX) FetchTicker(p currency.Pair, assetType asset.Item) (tickerData ticker.Price, err error) {
func (o *OKEX) FetchTicker(p currency.Pair, assetType asset.Item) (tickerData *ticker.Price, err error) {
if assetType == asset.Index {
return tickerData, errors.New("ticker fetching not supported for index")
}