Add bybit

README.md

@@ -1,6 +1,6 @@
 # pri
 
-CLI tool for simply getting cryptocurrency prices from 8 big exchanges. No API key needed.
+CLI tool for simply getting cryptocurrency prices from biggest exchanges. No API key needed.
 
 Supported exchanges are:
 - Binance
@@ -11,6 +11,7 @@ Supported exchanges are:
 - BitStamp
 - BitFinex
 - Huobi
+- Bybit
 
 ## Install
 
@@ -95,7 +96,7 @@ Getting prices...
 
 
 ## TODO
-- add bybit
+- add okx
 - automate asset list compilation
 - filter out delisted asset pairs, it's sometimes indicated in the api asset listsing
 - make arbitrage groups, like 

getters.go

@@ -88,6 +88,40 @@ func GeminiGetter(ticker string) (float64, error) {
 	return (af + bf) / 2, nil
 }
 
+type BybitTicker struct {
+	Reusult struct {
+		List []struct {
+			Ask string `json:"ask1Price"`
+			Bid string `json:"bid1Price"`
+		} `json:"list"`
+	} `json:"result"`
+}
+
+func BybitGetter(ticker string) (float64, error) {
+	url := "https://api-testnet.bybit.com/v5/market/tickers?category=linear&symbol=" + ticker
+	body, err := getHTTPResponseBodyFromUrl(url)
+	if err != nil {
+		return 0, err
+	}
+	var tickerData BybitTicker
+	err = json.Unmarshal(body, &tickerData)
+	if err != nil {
+		return 0, err
+	}
+	a := tickerData.Reusult.List[0].Ask
+	b := tickerData.Reusult.List[0].Bid
+
+	af, err := strconv.ParseFloat(a, 64)
+	if err != nil {
+		return 0, err
+	}
+	bf, err := strconv.ParseFloat(b, 64)
+	if err != nil {
+		return 0, err
+	}
+	return (af + bf) / 2, nil
+}
+
 type BitstampTicker struct {
 	Ask string `json:"ask"`
 	Bid string `json:"bid"`

main.go

@@ -25,7 +25,7 @@ type ExTickPri struct {
 
 func (etp ExTickPri) String() string {
 	et := etp.ExTick
-	return fmt.Sprintf("[%25s]\t%s", et, formatFloat(etp.Price))
+	return fmt.Sprintf("[%15s]\t%s", et, formatFloat(etp.Price))
 }
 
 func (et ExTick) String() string {
@@ -41,6 +41,7 @@ const (
 	Kucoin   Exchange = "kucoin"
 	Gateio   Exchange = "gateio"
 	Bitfinex Exchange = "bitfinex"
+	Bybit    Exchange = "bybit"
 )
 
 var exchangeGetters = map[Exchange]TickerGetter{
@@ -52,6 +53,7 @@ var exchangeGetters = map[Exchange]TickerGetter{
 	Kucoin:   KUCoinGetter,
 	Gateio:   GateIOGetter,
 	Bitfinex: BitfinexGetter,
+	Bybit:    BybitGetter,
 }
 
 func getExchangeTickerPrice(et ExTick) (*ExTickPri, error) {
@@ -87,6 +89,7 @@ var exchangeSymbols = map[Exchange][]string{
 	Kucoin:   symbols.Kucoin,
 	Gateio:   symbols.Gateio,
 	Bitfinex: symbols.Bitfinex,
+	Bybit:    symbols.Bybit,
 }
 
 func findExTick(symbol string) (*ExTick, error) {
@@ -116,7 +119,12 @@ func findExTick(symbol string) (*ExTick, error) {
 		return nil, fmt.Errorf("symbol not found: %s", symbol)
 	}
 	if len(foundSymbols) > 1 {
-		return nil, fmt.Errorf("symbol \"%s\" found in multiple exchanges: %v ", symbol, foundExchanges)
+		lst := []string{}
+		for i, v := range foundSymbols {
+			lst = append(lst, fmt.Sprintf("%s-%s", foundExchanges[i], v))
+		}
+		lines := strings.Join(lst, "\n")
+		return nil, fmt.Errorf("symbol %s found in multiple exchanges:\n%s", symbol, lines)
 	}
 	return &ExTick{foundExchanges[0], foundSymbols[0]}, nil
 }