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cryptocompare.go
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cryptocompare.go
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package wallet
import (
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"strings"
"time"
)
const cryptocompareURL = "https://min-api.cryptocompare.com"
var renameMapping = map[string]string{
"STT": "SNT",
}
type Coin struct {
ID string `json:"Id"`
Name string `json:"Name"`
Symbol string `json:"Symbol"`
Description string `json:"Description"`
TotalCoinsMined float64 `json:"TotalCoinsMined"`
AssetLaunchDate string `json:"AssetLaunchDate"`
AssetWhitepaperURL string `json:"AssetWhitepaperUrl"`
AssetWebsiteURL string `json:"AssetWebsiteUrl"`
BuiltOn string `json:"BuiltOn"`
SmartContractAddress string `json:"SmartContractAddress"`
}
type MarketCoinValues struct {
MKTCAP string `json:"MKTCAP"`
HIGHDAY string `json:"HIGHDAY"`
LOWDAY string `json:"LOWDAY"`
CHANGEPCTHOUR string `json:"CHANGEPCTHOUR"`
CHANGEPCTDAY string `json:"CHANGEPCTDAY"`
CHANGEPCT24HOUR string `json:"CHANGEPCT24HOUR"`
CHANGE24HOUR string `json:"CHANGE24HOUR"`
}
type TokenHistoricalPairs struct {
Timestamp int64 `json:"time"`
Value float64 `json:"close"`
Volumefrom float64 `json:"volumefrom"`
Volumeto float64 `json:"volumeto"`
}
type HistoricalValuesContainer struct {
Aggregated bool `json:"Aggregated"`
TimeFrom int64 `json:"TimeFrom"`
TimeTo int64 `json:"TimeTo"`
HistoricalData []TokenHistoricalPairs `json:"Data"`
}
type HistoricalValuesData struct {
Data HistoricalValuesContainer `json:"Data"`
}
type CoinsContainer struct {
Data map[string]Coin `json:"Data"`
}
type MarketValuesContainer struct {
Display map[string]map[string]MarketCoinValues `json:"Display"`
}
func renameSymbols(symbols []string) (renames []string) {
for _, symbol := range symbols {
renames = append(renames, getRealSymbol(symbol))
}
return
}
func getRealSymbol(symbol string) string {
if val, ok := renameMapping[strings.ToUpper(symbol)]; ok {
return val
}
return strings.ToUpper(symbol)
}
func fetchCryptoComparePrices(symbols []string, currency string) (map[string]float64, error) {
realSymbols := renameSymbols(symbols)
httpClient := http.Client{Timeout: time.Minute}
url := fmt.Sprintf("%s/data/pricemulti?fsyms=%s&tsyms=%s&extraParams=Status.im", cryptocompareURL, strings.Join(realSymbols, ","), currency)
resp, err := httpClient.Get(url)
if err != nil {
return nil, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
prices := make(map[string]map[string]float64)
err = json.Unmarshal(body, &prices)
if err != nil {
return nil, err
}
result := make(map[string]float64)
for _, symbol := range symbols {
result[symbol] = prices[getRealSymbol(symbol)][strings.ToUpper(currency)]
}
return result, nil
}
func fetchCryptoCompareTokenDetails(symbols []string) (map[string]Coin, error) {
httpClient := http.Client{Timeout: time.Minute}
url := fmt.Sprintf("%s/data/all/coinlist", cryptocompareURL)
resp, err := httpClient.Get(url)
if err != nil {
return nil, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
container := CoinsContainer{}
err = json.Unmarshal(body, &container)
if err != nil {
return nil, err
}
coins := make(map[string]Coin)
for _, symbol := range symbols {
coins[symbol] = container.Data[getRealSymbol(symbol)]
}
return coins, nil
}
func fetchTokenMarketValues(symbols []string, currency string) (map[string]MarketCoinValues, error) {
realSymbols := renameSymbols(symbols)
item := map[string]MarketCoinValues{}
httpClient := http.Client{Timeout: time.Minute}
url := fmt.Sprintf("%s/data/pricemultifull?fsyms=%s&tsyms=%s&extraParams=Status.im", cryptocompareURL, strings.Join(realSymbols, ","), currency)
resp, err := httpClient.Get(url)
if err != nil {
return item, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return item, err
}
container := MarketValuesContainer{}
err = json.Unmarshal(body, &container)
if err != nil {
return item, err
}
for _, symbol := range symbols {
item[symbol] = container.Display[getRealSymbol(symbol)][strings.ToUpper(currency)]
}
return item, nil
}
func fetchHourlyMarketValues(symbol string, currency string, limit int, aggregate int) ([]TokenHistoricalPairs, error) {
item := []TokenHistoricalPairs{}
httpClient := http.Client{Timeout: time.Minute}
url := fmt.Sprintf("%s/data/v2/histohour?fsym=%s&tsym=%s&aggregate=%d&limit=%d&extraParams=Status.im", cryptocompareURL, getRealSymbol(symbol), currency, aggregate, limit)
resp, err := httpClient.Get(url)
if err != nil {
return item, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return item, err
}
container := HistoricalValuesData{}
err = json.Unmarshal(body, &container)
if err != nil {
return item, err
}
item = container.Data.HistoricalData
return item, nil
}
func fetchDailyMarketValues(symbol string, currency string, limit int, allData bool, aggregate int) ([]TokenHistoricalPairs, error) {
item := []TokenHistoricalPairs{}
httpClient := http.Client{Timeout: time.Minute}
url := fmt.Sprintf("%s/data/v2/histoday?fsym=%s&tsym=%s&aggregate=%d&limit=%d&allData=%v&extraParams=Status.im", cryptocompareURL, getRealSymbol(symbol), currency, aggregate, limit, allData)
resp, err := httpClient.Get(url)
if err != nil {
return item, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return item, err
}
container := HistoricalValuesData{}
err = json.Unmarshal(body, &container)
if err != nil {
return item, err
}
item = container.Data.HistoricalData
return item, nil
}