48 lines
1.5 KiB
TypeScript
48 lines
1.5 KiB
TypeScript
import { query } from '../../utils/axios-query';
|
|
import priceUpdater, { PriceFeed, PriceHistory } from '../price-updater';
|
|
|
|
class GeminiApi implements PriceFeed {
|
|
public name: string = 'Gemini';
|
|
public currencies: string[] = ['USD', 'EUR', 'GBP', 'SGD'];
|
|
|
|
public url: string = 'https://api.gemini.com/v1/pubticker/BTC';
|
|
public urlHist: string = 'https://api.gemini.com/v2/candles/BTC{CURRENCY}/{GRANULARITY}';
|
|
|
|
constructor() {
|
|
}
|
|
|
|
public async $fetchPrice(currency): Promise<number> {
|
|
const response = await query(this.url + currency);
|
|
if (response && response['last']) {
|
|
return parseInt(response['last'], 10);
|
|
} else {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
public async $fetchRecentPrice(currencies: string[], type: 'hour' | 'day'): Promise<PriceHistory> {
|
|
const priceHistory: PriceHistory = {};
|
|
|
|
for (const currency of currencies) {
|
|
if (this.currencies.includes(currency) === false) {
|
|
continue;
|
|
}
|
|
|
|
const response = await query(this.urlHist.replace('{GRANULARITY}', type === 'hour' ? '1hr' : '1day').replace('{CURRENCY}', currency));
|
|
const pricesRaw = response ? response : [];
|
|
|
|
for (const price of pricesRaw as any[]) {
|
|
const time = Math.round(price[0] / 1000);
|
|
if (priceHistory[time] === undefined) {
|
|
priceHistory[time] = priceUpdater.getEmptyPricesObj();
|
|
}
|
|
priceHistory[time][currency] = price[4];
|
|
}
|
|
}
|
|
|
|
return priceHistory;
|
|
}
|
|
}
|
|
|
|
export default GeminiApi;
|