chore: sync submodule state (parent ref update)
Made-with: Cursor
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defiQUG
328
services/token-aggregation/src/adapters/cmc-adapter.ts
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328
services/token-aggregation/src/adapters/cmc-adapter.ts
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import axios, { AxiosInstance } from 'axios';
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import { ExternalApiAdapter, TokenMetadata, MarketData } from './base-adapter';
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interface CMCDexPair {
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pair_address: string;
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base: {
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address: string;
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symbol: string;
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};
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quote: {
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address: string;
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symbol: string;
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};
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dex_id: string;
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price: string;
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price_usd?: string;
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volume_24h?: {
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base: string;
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quote: string;
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usd?: string;
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};
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liquidity?: {
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usd?: string;
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};
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}
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interface CMCDexPairsResponse {
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data: CMCDexPair[];
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}
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interface CMCPairQuote {
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pair_address: string;
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price: string;
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price_usd?: string;
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volume_24h?: {
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usd?: string;
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};
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liquidity?: {
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usd?: string;
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};
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}
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interface CMCPairQuotesResponse {
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data: Record<string, CMCPairQuote>;
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}
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interface CMCOHLCV {
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time_open: string;
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time_close: string;
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quote: {
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open: string;
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high: string;
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low: string;
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close: string;
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volume: string;
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};
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}
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interface CMCOHLCVResponse {
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data: {
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pairs: Array<{
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pair_address: string;
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timeframes: Record<string, CMCOHLCV[]>;
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}>;
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};
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}
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// Chain ID to CMC chain identifier mapping
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// Note: CMC uses different identifiers, these may need to be updated
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const CHAIN_TO_CMC_ID: Record<number, string> = {
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1: '1', // Ethereum
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56: '1839', // BSC
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137: '3890', // Polygon
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43114: '5805', // Avalanche
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42161: '42161', // Arbitrum
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10: '42170', // Optimism
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8453: '8453', // Base
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// 138 and 651940 likely not supported
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};
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export class CoinMarketCapAdapter implements ExternalApiAdapter {
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private api: AxiosInstance;
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private apiKey?: string;
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private cache: Map<string, { data: any; expiresAt: Date }> = new Map();
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constructor() {
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this.apiKey = process.env.COINMARKETCAP_API_KEY;
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if (!this.apiKey) {
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console.warn('CoinMarketCap API key not provided. CMC adapter will not function.');
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}
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this.api = axios.create({
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baseURL: 'https://pro-api.coinmarketcap.com',
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timeout: 10000,
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headers: {
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'X-CMC_PRO_API_KEY': this.apiKey || '',
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'Accept': 'application/json',
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},
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});
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}
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getProviderName(): string {
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return 'coinmarketcap';
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}
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/**
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* Check if chain is supported by CoinMarketCap DEX API
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*/
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async checkChainSupport(chainId: number): Promise<boolean> {
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// CMC DEX API support is limited and requires API key
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if (!this.apiKey) {
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return false;
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}
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const cmcChainId = CHAIN_TO_CMC_ID[chainId];
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if (!cmcChainId) {
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return false;
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}
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// Try to fetch DEX pairs to verify support
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try {
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const response = await this.api.get('/v4/dex/spot-pairs/latest', {
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params: {
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chain_id: cmcChainId,
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limit: 1,
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},
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});
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return response.status === 200;
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} catch (error: any) {
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if (error.response?.status === 400 || error.response?.status === 404) {
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return false; // Chain not supported
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}
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console.error(`Error checking CMC chain support for ${chainId}:`, error);
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return false;
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}
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}
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/**
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* Get token by contract address (CMC doesn't have direct contract lookup in free tier)
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*/
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async getTokenByContract(chainId: number, address: string): Promise<TokenMetadata | null> {
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// CMC DEX API doesn't provide token metadata directly
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// Would need CMC Pro API with different endpoints
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return null;
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}
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/**
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* Get market data via DEX pairs
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*/
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async getMarketData(chainId: number, address: string): Promise<MarketData | null> {
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if (!this.apiKey) {
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return null;
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}
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const cmcChainId = CHAIN_TO_CMC_ID[chainId];
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if (!cmcChainId) {
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return null;
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}
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const cacheKey = `cmc_market_${chainId}_${address.toLowerCase()}`;
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const cached = this.cache.get(cacheKey);
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if (cached && cached.expiresAt > new Date()) {
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return cached.data;
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}
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try {
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// Get DEX pairs for this token
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const response = await this.api.get<CMCDexPairsResponse>('/v4/dex/spot-pairs/latest', {
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params: {
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chain_id: cmcChainId,
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base_address: address.toLowerCase(),
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limit: 10,
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},
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});
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if (!response.data.data || response.data.data.length === 0) {
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return null;
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}
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// Aggregate data from all pairs
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let totalVolume24h = 0;
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let totalLiquidity = 0;
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let avgPrice = 0;
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let priceCount = 0;
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response.data.data.forEach((pair) => {
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if (pair.price_usd) {
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avgPrice += parseFloat(pair.price_usd);
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priceCount++;
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}
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if (pair.volume_24h?.usd) {
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totalVolume24h += parseFloat(pair.volume_24h.usd);
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}
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if (pair.liquidity?.usd) {
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totalLiquidity += parseFloat(pair.liquidity.usd);
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}
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});
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const marketData: MarketData = {
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priceUsd: priceCount > 0 ? avgPrice / priceCount : undefined,
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volume24h: totalVolume24h > 0 ? totalVolume24h : undefined,
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liquidityUsd: totalLiquidity > 0 ? totalLiquidity : undefined,
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lastUpdated: new Date(),
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};
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// Cache for 5 minutes
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this.cache.set(cacheKey, {
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data: marketData,
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expiresAt: new Date(Date.now() + 5 * 60 * 1000),
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});
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return marketData;
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} catch (error: any) {
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if (error.response?.status === 404 || error.response?.status === 400) {
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return null;
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}
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console.error(`Error fetching CMC market data for ${address} on chain ${chainId}:`, error);
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return null;
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}
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}
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/**
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* Get DEX pairs for a token
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*/
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async getDexPairs(chainId: number, tokenAddress: string): Promise<CMCDexPair[]> {
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if (!this.apiKey) {
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return [];
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}
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const cmcChainId = CHAIN_TO_CMC_ID[chainId];
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if (!cmcChainId) {
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return [];
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}
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try {
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const response = await this.api.get<CMCDexPairsResponse>('/v4/dex/spot-pairs/latest', {
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params: {
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chain_id: cmcChainId,
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base_address: tokenAddress.toLowerCase(),
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limit: 100,
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},
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});
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return response.data.data || [];
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} catch (error) {
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console.error(`Error fetching CMC DEX pairs for ${tokenAddress} on chain ${chainId}:`, error);
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return [];
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}
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}
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/**
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* Get pair quotes
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*/
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async getPairQuotes(chainId: number, pairAddresses: string[]): Promise<CMCPairQuote[]> {
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if (!this.apiKey || pairAddresses.length === 0) {
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return [];
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}
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const cmcChainId = CHAIN_TO_CMC_ID[chainId];
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if (!cmcChainId) {
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return [];
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}
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try {
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const response = await this.api.get<CMCPairQuotesResponse>('/v4/dex/pairs/quotes/latest', {
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params: {
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chain_id: cmcChainId,
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pair_addresses: pairAddresses.join(','),
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},
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});
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return Object.values(response.data.data || {});
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} catch (error) {
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console.error(`Error fetching CMC pair quotes for chain ${chainId}:`, error);
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return [];
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}
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}
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/**
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* Get OHLCV data for pairs
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*/
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async getOHLCV(
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chainId: number,
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pairAddress: string,
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interval: '5m' | '15m' | '1h' | '4h' | '24h',
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from: Date,
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to: Date
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): Promise<CMCOHLCV[]> {
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if (!this.apiKey) {
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return [];
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}
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const cmcChainId = CHAIN_TO_CMC_ID[chainId];
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if (!cmcChainId) {
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return [];
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}
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const intervalMap: Record<string, string> = {
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'5m': '5m',
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'15m': '15m',
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'1h': '1h',
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'4h': '4h',
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'24h': '1d',
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};
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try {
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const response = await this.api.get<CMCOHLCVResponse>('/v4/dex/pairs/ohlcv/historical', {
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params: {
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chain_id: cmcChainId,
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pair_address: pairAddress.toLowerCase(),
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interval: intervalMap[interval] || '1h',
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time_start: Math.floor(from.getTime() / 1000),
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time_end: Math.floor(to.getTime() / 1000),
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},
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});
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const pair = response.data.data.pairs?.[0];
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if (!pair) {
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return [];
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}
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return pair.timeframes[intervalMap[interval] || '1h'] || [];
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} catch (error) {
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console.error(`Error fetching CMC OHLCV for ${pairAddress} on chain ${chainId}:`, error);
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return [];
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}
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}
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}
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