| 1 | "use strict";
|
| 2 | Object.defineProperty(exports, "__esModule", { value: true });
|
| 3 | const node_fetch_1 = require("node-fetch");
|
| 4 | const ecb_1 = require("./ecb");
|
| 5 | const lodash_1 = require("lodash");
|
| 6 | const COINMARKETCAP_API = 'https://api.coinmarketcap.com/v1/ticker/';
|
| 7 | const ROUNDING_FACTOR = 100000000;
|
| 8 | class ECBAndCoinMarketCapBackend extends ecb_1.default {
|
| 9 | async connect() {
|
| 10 | await super.connect();
|
| 11 | const ccRates = await this._getCCRates(this.rates.USD);
|
| 12 | Object.assign(this.rates, ccRates);
|
| 13 | this.currencies = this.currencies.concat(Object.keys(ccRates));
|
| 14 | this.currencies.sort();
|
| 15 | }
|
| 16 | async _getCCRates(usdRate) {
|
| 17 | const rateRes = await node_fetch_1.default(COINMARKETCAP_API);
|
| 18 | if (rateRes.status !== 200) {
|
| 19 | throw new Error('Unexpected status from coinmarketcap.com: ' + rateRes.status);
|
| 20 | }
|
| 21 | const body = await rateRes.json();
|
| 22 | return lodash_1.fromPairs(body.map((rateInfo) => {
|
| 23 | return [rateInfo.symbol, Math.floor(ROUNDING_FACTOR / (rateInfo.price_usd * usdRate)) / ROUNDING_FACTOR];
|
| 24 | }));
|
| 25 | }
|
| 26 | }
|
| 27 | exports.default = ECBAndCoinMarketCapBackend;
|
| 28 | |
| \ | No newline at end of file |