88 lines
2.7 KiB
PHP
88 lines
2.7 KiB
PHP
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<?php
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namespace App\Http\Middleware;
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use CLosure;
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use DateTime;
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use DateTimeZone;
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use Exception;
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use GuzzleHttp\Client;
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use Illuminate\Support\Facades\Cache;
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use Illuminate\Support\Facades\View;
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class Price
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{
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private $bittrexApiUrl = 'https://api.bittrex.com';
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private $bittrexApiClient;
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function __construct() {
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$this->bittrexApiClient = new Client([
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'base_uri' => $this->bittrexApiUrl,
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'timeout' => 2.0,
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'http_errors' => false
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]);
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}
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/**
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* Handle an incoming request.
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*
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* @param \Illuminate\Http\Request $request
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* @param \Closure $next
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* @return mixed
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*/
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public function handle($request, Closure $next)
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{
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if (Cache::has('priceInfo')) {
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$priceInfo = Cache::get('priceInfo');
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} else {
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$priceInfo = $this->getPrice();
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Cache::put('priceInfo', $priceInfo, $seconds = 60);
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}
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$request->attributes->add(['priceInfo' => $priceInfo]);
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View::share('priceInfo', $priceInfo);
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return $next($request);
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}
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private function getPrice() {
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$bittrexBtcTicker = 'v3/markets/LBC-BTC/ticker';
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$bittrexUsdTicker = 'v3/markets/LBC-USDT/ticker';
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$bittrexUsdSummary = 'v3/markets/LBC-BTC/summary';
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$btcResponse = json_decode($this->get($bittrexBtcTicker));
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$usdResponse= json_decode($this->get($bittrexUsdTicker));
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$usdSummaryResponse= json_decode($this->get($bittrexUsdSummary));
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if ($btcResponse->symbol) {
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$last_price_btc = $btcResponse->lastTradeRate;
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$now = new DateTime('now', new DateTimeZone('UTC'));
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if ($usdResponse->symbol) {
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$last_price_usd = $usdResponse->lastTradeRate;
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$percentChangeUsd = $usdSummaryResponse->percentChange;
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$priceInfo = new \stdClass();
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$priceInfo->priceUsd = number_format($last_price_usd, 4, '.', '');
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$priceInfo->percentChangeUsd = $percentChangeUsd;
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$priceInfo->priceBtc = number_format($last_price_btc, 9, '.', '');
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$priceInfo->time = $now->format('c');
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if ($priceInfo) {
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return $priceInfo;
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} else {
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echo "Could not insert price history item. USD: $last_price_usd, BTC: $last_price_btc.\n";
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}
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}
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} else {
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echo "Bittrex request returned an invalid result.\n";
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}
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}
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private function get($url) {
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$response = $this->bittrexApiClient->request('GET', $url);
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if ($response->getStatusCode() != 200) {
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return false;
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}
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return (string) $response->getBody();
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}
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}
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