coinmarketcap: imp. /v1/cryptocurrency/market-pairs/latest

hexoul · Nov 5, 2018 · 1fbe731 · 1fbe731
1 parent efe2820
commit 1fbe731
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Showing 6 changed files with 52 additions and 14 deletions.
diff --git a/README.md b/README.md
@@ -16,7 +16,7 @@
 | Cryptocurrency | /v1/cryptocurrency/map                 | YES    |
 | Cryptocurrency | /v1/cryptocurrency/listings/latest     | YES    |
 | Cryptocurrency | /v1/cryptocurrency/listings/historical | -      |
-| Cryptocurrency | /v1/cryptocurrency/market-pairs/latest | -      |
+| Cryptocurrency | /v1/cryptocurrency/market-pairs/latest | YES    |
 | Cryptocurrency | /v1/cryptocurrency/ohlcv/latest        | -      |
 | Cryptocurrency | /v1/cryptocurrency/ohlcv/historical    | -      |
 | Cryptocurrency | /v1/cryptocurrency/quotes/latest       | YES    |

diff --git a/coinmarketcap.go b/coinmarketcap.go
@@ -19,12 +19,13 @@ type Interface interface {
 	CryptoInfo(options *types.Options) (*types.CryptoInfoMap, error)
 	CryptoMap(options *types.Options) (*types.CryptoMapList, error)
 	CryptoListingsLatest(options *types.Options) (*types.CryptoMarketList, error)
+	CryptoMarketPairsLatest(options *types.Options) (*types.MarketPairs, error)
 	CryptoMarketQuotesLatest(options *types.Options) (*types.CryptoMarketMap, error)
 
 	ExchangeInfo(options *types.Options) (*types.ExchangeInfoMap, error)
 	ExchangeMap(options *types.Options) (*types.ExchangeMapList, error)
 	ExchangeListingsLatest(options *types.Options) (*types.ExchangeMarketList, error)
-	ExchangeMarketPairsLatest(options *types.Options) (*types.ExchangeMarketPairs, error)
+	ExchangeMarketPairsLatest(options *types.Options) (*types.MarketPairs, error)
 	ExchangeMarketQuotesLatest(options *types.Options) (*types.ExchangeMarketQuotes, error)
 }
 
@@ -97,7 +98,7 @@ func (s *Client) getResponse(url string) (*types.Response, []byte, error) {
 		return nil, nil, err
 	}
 	if resp.Status.ErrorCode != 0 {
-		return nil, nil, fmt.Errorf("%d %s", resp.Status.ErrorCode, *resp.Status.ErrorMessage)
+		return nil, nil, fmt.Errorf("[%d] %s", resp.Status.ErrorCode, *resp.Status.ErrorMessage)
 	}
 	return resp, body, nil
 }
diff --git a/cryptocurrency.go b/cryptocurrency.go
@@ -66,6 +66,29 @@ func (s *Client) CryptoListingsLatest(options *types.Options) (*types.CryptoMark
 	return result, nil
 }
 
+// CryptoMarketPairsLatest lists all market pairs for the specified cryptocurrency with associated stats.
+// arg: id, symbol, start, limit, convert
+// src: https://pro-api.coinmarketcap.com/v1/cryptocurrency/market-pairs/latest
+// doc: https://pro.coinmarketcap.com/api/v1#operation/getV1CryptocurrencyMarketpairsLatest
+func (s *Client) CryptoMarketPairsLatest(options *types.Options) (*types.MarketPairs, error) {
+	url := fmt.Sprintf("%s/cryptocurrency/market-pairs/latest?%s", baseURL, strings.Join(util.ParseOptions(options), "&"))
+
+	resp, _, err := s.getResponse(url)
+	if err != nil {
+		return nil, err
+	}
+
+	var result = new(types.MarketPairs)
+	b, err := json.Marshal(resp.Data)
+	if err != nil {
+		return nil, err
+	}
+	if err := json.Unmarshal(b, result); err != nil {
+		return nil, err
+	}
+	return result, nil
+}
+
 // CryptoMarketQuotesLatest gets the latest market quote for 1 or more cryptocurrencies.
 // arg: id, symbol, convert
 // src: https://pro-api.coinmarketcap.com/v1/cryptocurrency/quotes/latest

diff --git a/cryptocurrency_test.go b/cryptocurrency_test.go
@@ -52,6 +52,18 @@ func TestCryptoListingsLatest(t *testing.T) {
 	}
 }
 
+func TestCryptoMarketPairsLatest(t *testing.T) {
+	info, err := GetInstance().CryptoMarketPairsLatest(&types.Options{
+		Symbol: "BTC",
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if info.Name != "Bitcoin" {
+		t.FailNow()
+	}
+}
+
 func TestCryptoMarketQuotesLatest(t *testing.T) {
 	quotes, err := GetInstance().CryptoMarketQuotesLatest(&types.Options{
 		Symbol: "BTC,ETH",

diff --git a/exchange.go b/exchange.go
@@ -70,15 +70,15 @@ func (s *Client) ExchangeListingsLatest(options *types.Options) (*types.Exchange
 // arg: id, slug, start, limit, convert
 // src: https://pro-api.coinmarketcap.com/v1/exchange/market-pairs/latest
 // doc: https://pro.coinmarketcap.com/api/v1#operation/getV1ExchangeMarketpairsLatest
-func (s *Client) ExchangeMarketPairsLatest(options *types.Options) (*types.ExchangeMarketPairs, error) {
+func (s *Client) ExchangeMarketPairsLatest(options *types.Options) (*types.MarketPairs, error) {
 	url := fmt.Sprintf("%s/exchange/market-pairs/latest?%s", baseURL, strings.Join(util.ParseOptions(options), "&"))
 
 	resp, _, err := s.getResponse(url)
 	if err != nil {
 		return nil, err
 	}
 
-	var result = new(types.ExchangeMarketPairs)
+	var result = new(types.MarketPairs)
 	b, err := json.Marshal(resp.Data)
 	if err != nil {
 		return nil, err

diff --git a/types/types.go b/types/types.go
@@ -104,17 +104,19 @@ type ExchangeMap struct {
 	LastHistoricalData  string `json:"last_historical_data"`
 }
 
-// ExchangeMarketPairs structure
-type ExchangeMarketPairs struct {
-	ID             int            `json:"id"`
-	Name           string         `json:"name"`
-	Slug           string         `json:"slug"`
-	NumMarketPairs int            `json:"num_market_pairs"`
-	MarketPairs    []*MarketPairs `json:"market_pairs"`
-}
-
 // MarketPairs structure
 type MarketPairs struct {
+	ID             int           `json:"id"`
+	Name           string        `json:"name"`
+	Symbol         string        `json:"symbol"`
+	Slug           string        `json:"slug"`
+	NumMarketPairs int           `json:"num_market_pairs"`
+	MarketPair     []*MarketPair `json:"market_pairs"`
+}
+
+// MarketPair structure
+type MarketPair struct {
+	ExchangeInfo    *ExchangeInfo     `json:"exchange"`
 	MarketPair      string            `json:"market_pair"`
 	MarketPairBase  *Currency         `json:"market_pair_base"`
 	MarketPairQuote *Currency         `json:"market_pair_quote"`