chore: Remove crescent provider (#402)

config/currency_provider_tracker.go

@@ -14,15 +14,13 @@ import (
 )
 
 const (
-	coinGeckoRestURL           = "https://api.coingecko.com/api/v3/coins"
-	coinGeckoListEndpoint      = "list"
-	coinGeckoTickersEndpoint   = "tickers"
-	osmosisRestURL             = "https://api.osmo-api.prod.ojo.network"
-	osmosisAssetPairsEndpoint  = "assetpairs"
-	crescentRestURL            = "https://api.cresc-api.prod.ojo.network"
-	crescentAssetPairsEndpoint = "assetpairs"
-	requestTimeout             = time.Second * 2
-	trackingPeriod             = time.Hour * 24
+	coinGeckoRestURL          = "https://api.coingecko.com/api/v3/coins"
+	coinGeckoListEndpoint     = "list"
+	coinGeckoTickersEndpoint  = "tickers"
+	osmosisRestURL            = "https://api.osmo-api.prod.ojo.network"
+	osmosisAssetPairsEndpoint = "assetpairs"
+	requestTimeout            = time.Second * 2
+	trackingPeriod            = time.Hour * 24
 )
 
 type (
@@ -90,12 +88,7 @@ func NewCurrencyProviderTracker(
 		return nil, err
 	}
 
-	crescentAPIPairs, err := currencyProviderTracker.getCrescentAPIPairs()
-	if err != nil {
-		return nil, err
-	}
-
-	if err := currencyProviderTracker.setCurrencyProviders(osmosisAPIPairs, crescentAPIPairs); err != nil {
+	if err := currencyProviderTracker.setCurrencyProviders(osmosisAPIPairs); err != nil {
 		return nil, err
 	}
 
@@ -159,36 +152,10 @@ func (t *CurrencyProviderTracker) getOsmosisAPIPairs() (map[string]string, error
 	return osmosisAPIPairs, nil
 }
 
-// getCrescentAPIPairs queries the crescent-api assetpairs endpoint to get the asset pairs
-// supported by it.
-func (t *CurrencyProviderTracker) getCrescentAPIPairs() (map[string]string, error) {
-	client := &http.Client{
-		Timeout: requestTimeout,
-	}
-	crescentAPIPairs := make(map[string]string)
-
-	crescentResp, err := client.Get(fmt.Sprintf("%s/%s", crescentRestURL, crescentAssetPairsEndpoint))
-	if err != nil {
-		return nil, err
-	}
-	defer crescentResp.Body.Close()
-	var assetPairsResponse []assetPair
-	if err = json.NewDecoder(crescentResp.Body).Decode(&assetPairsResponse); err != nil {
-		return nil, err
-	}
-
-	for _, assetPair := range assetPairsResponse {
-		crescentAPIPairs[assetPair.Base] = assetPair.Quote
-	}
-
-	return crescentAPIPairs, nil
-}
-
 // setCurrencyProviders queries CoinGecko's tickers endpoint to get all the exchanges
 // that support each price feeder currency pair and store it in the CurrencyProviders map.
 func (t *CurrencyProviderTracker) setCurrencyProviders(
 	osmosisAPIPairs map[string]string,
-	crescentAPIPairs map[string]string,
 ) error {
 	client := &http.Client{
 		Timeout: requestTimeout,
@@ -199,11 +166,6 @@ func (t *CurrencyProviderTracker) setCurrencyProviders(
 			t.CurrencyProviders[pair.Base] = append(t.CurrencyProviders[pair.Base], "osmosis")
 		}
 
-		// check if its a pair supported by the crescent api
-		if crescentAPIPairs[strings.ToUpper(pair.Base)] == strings.ToUpper(pair.Quote) {
-			t.CurrencyProviders[pair.Base] = append(t.CurrencyProviders[pair.Base], "crescent")
-		}
-
 		// check if CoinGecko API supports pair
 		pairBaseID := t.coinIDSymbolMap[strings.ToLower(pair.Base)]
 		coinGeckoResp, err := client.Get(fmt.Sprintf("%s/%s/%s", coinGeckoRestURL, pairBaseID, coinGeckoTickersEndpoint))
@@ -259,11 +221,7 @@ func (t *CurrencyProviderTracker) trackCurrencyProviders(ctx context.Context) {
 			if err != nil {
 				t.logger.Error().Err(err).Msg("failed to query osmosis-api for available asset pairs")
 			}
-			crescentAPIPairs, err := t.getOsmosisAPIPairs()
-			if err != nil {
-				t.logger.Error().Err(err).Msg("failed to query crescent-api for available asset pairs")
-			}
-			if err := t.setCurrencyProviders(osmosisAPIPairs, crescentAPIPairs); err != nil {
+			if err := t.setCurrencyProviders(osmosisAPIPairs); err != nil {
 				t.logger.Error().Err(err).Msg("failed to set available providers for currencies")
 			}
 

config/supported_assets.go

@@ -14,7 +14,6 @@ var (
 		provider.ProviderKraken:     false,
 		provider.ProviderBinance:    false,
 		provider.ProviderBinanceUS:  false,
-		provider.ProviderCrescent:   false,
 		provider.ProviderOsmosis:    false,
 		provider.ProviderOkx:        false,
 		provider.ProviderHuobi:      false,

oracle/oracle.go

@@ -498,9 +498,6 @@ func NewProvider(
 	case provider.ProviderPolygon:
 		return provider.NewPolygonProvider(ctx, logger, endpoint, providerPairs...)
 
-	case provider.ProviderCrescent:
-		return provider.NewCrescentProvider(ctx, logger, endpoint, providerPairs...)
-
 	case provider.ProviderKujira:
 		return provider.NewKujiraProvider(ctx, logger, endpoint, providerPairs...)