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Create exchange rate service , use CORS proxy for requests

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Basti
2020-09-30 15:03:55 +02:00
parent b5700092a8
commit 25b2a8b0e5
7 changed files with 72 additions and 52 deletions
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tests/unit/services/exchange-rates-test.js
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import { module, test } from 'qunit';
import { setupTest } from 'ember-qunit';
import config from 'kredits-web/config/environment';
import fetchMock from 'fetch-mock';
const corsProxy = config.corsProxy;
fetchMock.get(`${corsProxy}https://www.bitstamp.net/api/v2/ticker/btceur/`, {
"high": "9258.43", "last": "9165.14", "timestamp": "1601455909", "bid":
"9159.93", "vwap": "9167.57", "volume": "1542.54764854", "low": "9080.20",
"ask": "9165.14", "open": "9240.84"
});
fetchMock.get(`${corsProxy}https://www.bitstamp.net/api/v2/ticker/btcusd/`, {
"high": "10865.00", "last": "10714.62", "timestamp": "1601455914", "bid":
"10711.31", "vwap": "10749.70", "volume": "4460.32091975", "low": "10636.66",
"ask": "10715.99", "open": "10840.00"
});
module('Unit | Service | exchange-rates', function(hooks) {
setupTest(hooks);
test('#fetchRates', async function(assert) {
let service = this.owner.lookup('service:exchange-rates');
await service.fetchRates();
assert.equal(service.btceur, 9167.57, 'fetches BTCEUR from Bitstamp');
assert.equal(service.btcusd, 10749.70, 'fetches BTCUSD from Bitstamp');
});
});
tests/unit/utils/fetch-exchange-rate-test.js
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import fetchExchangeRate from 'kredits-web/utils/fetch-exchange-rate';
import { module, test } from 'qunit';
import fetchMock from 'fetch-mock';
fetchMock.get('https://www.bitstamp.net/api/v2/ticker/btceur/', {
"high": "9258.43", "last": "9165.14", "timestamp": "1601455909", "bid":
"9159.93", "vwap": "9167.57", "volume": "1542.54764854", "low": "9080.20",
"ask": "9165.14", "open": "9240.84"
});
fetchMock.get('https://www.bitstamp.net/api/v2/ticker/btcusd/', {
"high": "10865.00", "last": "10714.62", "timestamp": "1601455914", "bid":
"10711.31", "vwap": "10749.70", "volume": "4460.32091975", "low": "10636.66",
"ask": "10715.99", "open": "10840.00"
});
module('Unit | Utility | fetch-exchange-rate', function() {
test('it requires a currency pair', function(assert) {
assert.throws(fetchExchangeRate);
});
test('it fetches BTCEUR from Bitstamp', async function(assert) {
let result = await fetchExchangeRate('btceur');
assert.equal(result, 9167.57, 'returns 24-hour volume-weighted average price');
});
test('it fetches BTCUSD from Bitstamp', async function(assert) {
let result = await fetchExchangeRate('btcusd');
assert.equal(result, 10749.70, 'returns 24-hour volume-weighted average price');
});
});