@cygnus-wealth/asset-valuator/dist/providers/coinpaprika.js

Asset valuation library for retrieving and converting cryptocurrency prices

import axios from 'axios';
export class CoinPaprikaProvider {
    constructor() {
        this.baseUrl = 'https://api.coinpaprika.com/v1';
        this.symbolToIdMap = new Map([
            ['BTC', 'btc-bitcoin'],
            ['ETH', 'eth-ethereum'],
            ['USDT', 'usdt-tether'],
            ['USDC', 'usdc-usd-coin'],
            ['BNB', 'bnb-binance-coin'],
            ['SOL', 'sol-solana'],
            ['XRP', 'xrp-xrp'],
            ['ADA', 'ada-cardano'],
            ['DOGE', 'doge-dogecoin'],
            ['AVAX', 'avax-avalanche'],
            ['DOT', 'dot-polkadot'],
            ['MATIC', 'matic-polygon'],
            ['LINK', 'link-chainlink'],
            ['UNI', 'uni-uniswap'],
            ['ATOM', 'atom-cosmos'],
            ['LTC', 'ltc-litecoin'],
            ['DAI', 'dai-dai'],
        ]);
    }
    getCoinPaprikaId(symbol) {
        return this.symbolToIdMap.get(symbol.toUpperCase()) || `${symbol.toLowerCase()}-${symbol.toLowerCase()}`;
    }
    async fetchPrice(symbol, currency = 'usd') {
        const id = this.getCoinPaprikaId(symbol);
        const url = `${this.baseUrl}/tickers/${id}`;
        try {
            const response = await axios.get(url);
            const data = response.data;
            if (!data || !data.quotes || !data.quotes.USD) {
                throw new Error(`Price not found for ${symbol}`);
            }
            // CoinPaprika only provides USD prices in free tier
            const priceInUSD = data.quotes.USD.price;
            let price = priceInUSD;
            if (currency.toLowerCase() !== 'usd') {
                // For other currencies, we'd need to convert
                // This is a limitation of the free API
                throw new Error(`CoinPaprika free tier only supports USD prices`);
            }
            return {
                symbol: symbol.toUpperCase(),
                price,
                timestamp: new Date()
            };
        }
        catch (error) {
            if (axios.isAxiosError(error)) {
                throw new Error(`Failed to fetch price from CoinPaprika: ${error.message}`);
            }
            throw error;
        }
    }
    async fetchMultiplePrices(symbols, currency = 'usd') {
        // CoinPaprika requires individual requests for each coin
        const promises = symbols.map(symbol => this.fetchPrice(symbol, currency).catch(() => null));
        const results = await Promise.all(promises);
        return results.filter((result) => result !== null);
    }
}