[Next.js] CNN 공포 탐욕 지수 공식 api (feat. TypeScript)

CNN에서 사용하는 공식 데이터 호출 로직입니다. 브라우저로 접속시 데이터 확인 가능하며, 크롤링을 방지하기 위해서 418 I'm a teapot을 띄우기 때문에 User-Agent를 추가하여 호출했습니다.

 

const data = await fetch("https://production.dataviz.cnn.io/index/fearandgreed/graphdata",
    {
        headers: {
            "Content-Type": "application/json",
            "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3"
        }
    }
)

 

interface FearAndGreedData {
    score: number;
    rating: string;
    timestamp: string;
    previous_close: number;
    previous_1_week: number;
    previous_1_month: number;
    previous_1_year: number;
}

interface HistoricalData {
    timestamp: number;
    score: number;
    rating: string;
    data: {
        x: number;
        y: number;
        rating: string;
    }[];
}

interface MarketMomentumData {
    timestamp: number;
    score: number;
    rating: string;
    data: Array<Record<string, any>>;
}

interface StockPriceData {
    timestamp: number;
    score: number;
    rating: string;
    data: Array<Record<string, any>>;
}

interface PutCallOptionsData {
    timestamp: number;
    score: number;
    rating: string;
    data: Array<Record<string, any>>;
}

interface MarketVolatilityData {
    timestamp: number;
    score: number;
    rating: string;
    data: Array<Record<string, any>>;
}

interface JunkBondDemandData {
    timestamp: number;
    score: number;
    rating: string;
    data: Array<Record<string, any>>;
}

interface SafeHavenDemandData {
    timestamp: number;
    score: number;
    rating: string;
    data: Array<Record<string, any>>;
}

interface FearAndGreedIndex {
    fear_and_greed: FearAndGreedData;
    fear_and_greed_historical: HistoricalData;
    market_momentum_sp500: MarketMomentumData;
    market_momentum_sp125: MarketMomentumData;
    stock_price_strength: StockPriceData;
    stock_price_breadth: StockPriceData;
    put_call_options: PutCallOptionsData;
    market_volatility_vix: MarketVolatilityData;
    market_volatility_vix_50: MarketVolatilityData;
    junk_bond_demand: JunkBondDemandData;
    safe_haven_demand: SafeHavenDemandData;
}