Implemented /quotes/latest to get prices by symbol and also converted

pro/v1/coinmarketcap.go

@@ -47,6 +47,22 @@ type Listing struct {
 	Quote             map[string]*Quote `json:"quote"`
 }
 
+// QuoteLatest is the quotes structure
+type QuoteLatest struct {
+	ID                float64           `json:"id"`
+	Name              string            `json:"name"`
+	Symbol            string            `json:"symbol"`
+	Slug              string            `json:"slug"`
+	CirculatingSupply float64           `json:"circulating_supply"`
+	TotalSupply       float64           `json:"total_supply"`
+	MaxSupply         float64           `json:"max_supply"`
+	DateAdded         string            `json:"date_added"`
+	NumMarketPairs    float64           `json:"num_market_pairs"`
+	CMCRank           float64           `json:"cmc_rank"`
+	LastUpdated       string            `json:"last_updated"`
+	Quote             map[string]*Quote `json:"quote"`
+}
+
 // Quote is the quote structure
 type Quote struct {
 	Price            float64 `json:"price"`
@@ -84,6 +100,12 @@ type CryptocurrencyListingsLatestOptions struct {
 	Sort    string
 }
 
+// CryptocurrencyQuotesLatestOptions options
+type CryptocurrencyQuotesLatestOptions struct {
+	Convert string
+	Symbol  string
+}
+
 // SortOptions sort options
 var SortOptions sortOptions
 
@@ -240,6 +262,53 @@ func (s *Client) CryptocurrencyListingsLatest(options *CryptocurrencyListingsLat
 	return listings, nil
 }
 
+// CryptocurrencyQuotesLatest gets latest quote for each specified symbol. Use the "convert" option to return market values in multiple fiat and cryptocurrency conversions in the same call.
+func (s *Client) CryptocurrencyQuotesLatest(options *CryptocurrencyQuotesLatestOptions) ([]*QuoteLatest, error) {
+	var params []string
+	if options == nil {
+		options = new(CryptocurrencyQuotesLatestOptions)
+	}
+
+	if options.Symbol != "" {
+		params = append(params, fmt.Sprintf("symbol=%s", options.Symbol))
+	}
+
+	if options.Convert != "" {
+		params = append(params, fmt.Sprintf("convert=%s", options.Convert))
+	}
+
+	url := fmt.Sprintf("%s/cryptocurrency/quotes/latest?%s", baseURL, strings.Join(params, "&"))
+
+	body, err := s.makeReq(url)
+	resp := new(Response)
+	err = json.Unmarshal(body, &resp)
+	if err != nil {
+		return nil, fmt.Errorf("JSON Error: [%s]. Response body: [%s]", err.Error(), string(body))
+	}
+
+	var quotesLatest []*QuoteLatest
+	ifcs, ok := resp.Data.(interface{})
+	if !ok {
+		return nil, ErrCouldNotCast
+	}
+
+	for _, coinObj := range ifcs.(map[string]interface{}) {
+		quoteLatest := new(QuoteLatest)
+		b, err := json.Marshal(coinObj)
+		if err != nil {
+			return nil, err
+		}
+
+		err = json.Unmarshal(b, quoteLatest)
+		if err != nil {
+			return nil, err
+		}
+
+		quotesLatest = append(quotesLatest, quoteLatest)
+	}
+	return quotesLatest, nil
+}
+
 func init() {
 	SortOptions = sortOptions{
 		Name:              "name",

pro/v1/example/quotes_latest.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"fmt"
+	"log"
+
+	cmc ".."
+)
+
+func main() {
+	client := cmc.NewClient(&cmc.Config{
+		ProAPIKey: "01585d6d-123-456-789-3146576cbc70",
+	})
+
+	quotesLatest, err := client.CryptocurrencyQuotesLatest(&cmc.CryptocurrencyQuotesLatestOptions{
+		Symbol:  "BTC", //add comma and other coin symbol e.g.: "BTC,ETH,XRP"
+		Convert: "BRL", //add comma and other coin symbol e.g.: "BRL,USD"
+	})
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	for _, quote := range quotesLatest {
+		fmt.Println(quote.Name)               // "Bitcoin"
+		fmt.Println(quote.Quote["BRL"].Price) // 12880.958109581403 // BTC price converted to BRL
+	}
+}