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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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19
exchanges/coinbasepro/coinbasepro_wrapper.go
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@@ -281,18 +281,17 @@ func (c *CoinbasePro) GetAccountInfo() (exchange.AccountInfo, error) {
}
// UpdateTicker updates and returns the ticker for a currency pair
func (c *CoinbasePro) UpdateTicker(p currency.Pair, assetType asset.Item) (ticker.Price, error) {
var tickerPrice ticker.Price
func (c *CoinbasePro) UpdateTicker(p currency.Pair, assetType asset.Item) (*ticker.Price, error) {
tick, err := c.GetTicker(c.FormatExchangeCurrency(p, assetType).String())
if err != nil {
return ticker.Price{}, err
return nil, err
}
stats, err := c.GetStats(c.FormatExchangeCurrency(p, assetType).String())
if err != nil {
return ticker.Price{}, err
return nil, err
}
tickerPrice = ticker.Price{
tickerPrice := &ticker.Price{
Last: tick.Size,
High: stats.High,
Low: stats.Low,
@@ -304,7 +303,7 @@ func (c *CoinbasePro) UpdateTicker(p currency.Pair, assetType asset.Item) (ticke
LastUpdated: tick.Time,
}
err = ticker.ProcessTicker(c.Name, &tickerPrice, assetType)
err = ticker.ProcessTicker(c.Name, tickerPrice, assetType)
if err != nil {
return tickerPrice, err
}
@@ -313,7 +312,7 @@ func (c *CoinbasePro) UpdateTicker(p currency.Pair, assetType asset.Item) (ticke
}
// FetchTicker returns the ticker for a currency pair
func (c *CoinbasePro) FetchTicker(p currency.Pair, assetType asset.Item) (ticker.Price, error) {
func (c *CoinbasePro) FetchTicker(p currency.Pair, assetType asset.Item) (*ticker.Price, error) {
tickerNew, err := ticker.GetTicker(c.Name, p, assetType)
if err != nil {
return c.UpdateTicker(p, assetType)
@@ -322,7 +321,7 @@ func (c *CoinbasePro) FetchTicker(p currency.Pair, assetType asset.Item) (ticker
}
// FetchOrderbook returns orderbook base on the currency pair
func (c *CoinbasePro) FetchOrderbook(p currency.Pair, assetType asset.Item) (orderbook.Base, error) {
func (c *CoinbasePro) FetchOrderbook(p currency.Pair, assetType asset.Item) (*orderbook.Base, error) {
ob, err := orderbook.Get(c.Name, p, assetType)
if err != nil {
return c.UpdateOrderbook(p, assetType)
@@ -331,8 +330,8 @@ func (c *CoinbasePro) FetchOrderbook(p currency.Pair, assetType asset.Item) (ord
}
// UpdateOrderbook updates and returns the orderbook for a currency pair
func (c *CoinbasePro) UpdateOrderbook(p currency.Pair, assetType asset.Item) (orderbook.Base, error) {
var orderBook orderbook.Base
func (c *CoinbasePro) UpdateOrderbook(p currency.Pair, assetType asset.Item) (*orderbook.Base, error) {
orderBook := new(orderbook.Base)
orderbookNew, err := c.GetOrderbook(c.FormatExchangeCurrency(p,
assetType).String(), 2)
if err != nil {